Laying a Foundation for Lifelong Learning: Case Studies of E-Assessment in Large 1st-Year Classes

ERIC Educational Resources Information Center

Nicol, David

2007-01-01

Concerns about noncompletion and the quality of the 1st-year student experience have been linked to recent changes in higher education such as modularisation, increased class sizes, greater diversity in the student intake and reduced resources. Improving formative assessment and feedback processes is seen as one way of addressing academic failure,…

Workshopping the Revolution? On the Phenomenon of Joker Training in the Theatre of the Oppressed

ERIC Educational Resources Information Center

Bala, Sruti; Albacan, Aristita I.

2013-01-01

The article brings together observations and insights on the emerging phenomenon of training the trainers, also known as joker training in the Theatre of the Oppressed (TO). The concerns raised in this article are twofold: first, how does the modularised, workshop format of joker training affect the core principles of TO? Second, what are the…

Future orbital transfer vehicle technology study. Volume 1: Executive summary

NASA Technical Reports Server (NTRS)

Davis, E. E.

1982-01-01

Reusable space and ground based LO2/LH2 OTV's, both advanced space engines and aero assist capability were compared. The SB OTV provided advantages in life cycle cost, performance and potential for improvement. An all LO2/LH2 OTV fleet was also compared with a fleet of LO2/.H2 OTV's and electric OTV's. The normal growth technology electric OTV used silicon cells with heavy shielding and argon ion thrusters. In this case, the LO2/LH2 OTV fleet provided a 23% advantage in total transportation cost. An accelerated technology LF2/LH2 OTV provided improvements in performance relative to LO2/.H2 OTV but has higher DDT&E cost which negated its cost effectiveness. The accelerated technology electric vehicle used GaAs cells and annealing but still did not result in the mixed fleet being any cheaper than an all LO2/LH2 OTV fleet. It is concluded that reusable LO2/LH2 OTV's can serve all general purpose cargo roles between LEO and GEO for the forseeable future. The most significant technology for the second generation vehicle would be space debris protection, on orbit propellant storage and transfer and on orbit maintenance capability.

Aids to navigation service force mix 2000 project. Volume 3 : analysis of multi-mission requirements and development of planning factors for the replacement buoy tender fleet

DOT National Transportation Integrated Search

1992-06-01

The Aids to Navigation (ATON) Service Force Mix (SFM) 2000 Project is documented in a Project Overview and three separately bound volumes. This is Volume III. The Project Overview describes the purpose, approach, analysis, and results of the ATON SFM...

Modularisation of Vocational Education in Europe: NVQs and GNVQs as a Model for the Reform of Initial Training Provisions in Germany? Monographs in International Education.

ERIC Educational Resources Information Center

Ertl, Hubert

This book examines modularization in the German system of initial vocational education and training. After examining the underlying concept of modularization (providing training through self-contained units that can be combined in different ways), the book presents an overview of modularization as it occurs in Spain, Scotland, France, and the…

Improving Transportation Services for the University of the Thai Chamber of Commerce: A Case Study on Solving the Mixed-Fleet Vehicle Routing Problem with Split Deliveries

NASA Astrophysics Data System (ADS)

Suthikarnnarunai, N.; Olinick, E.

2009-01-01

We present a case study on the application of techniques for solving the Vehicle Routing Problem (VRP) to improve the transportation service provided by the University of The Thai Chamber of Commerce to its staff. The problem is modeled as VRP with time windows, split deliveries, and a mixed fleet. An exact algorithm and a heuristic solution procedure are developed to solve the problem and implemented in the AMPL modeling language and CPLEX Integer Programming solver. Empirical results indicate that the heuristic can find relatively good solutions in a small fraction of the time required by the exact method. We also perform sensitivity analysis and find that a savings in outsourcing cost can be achieved with a small increase in vehicle capacity.

Examination of the costs, benefits and enery conservation aspects of the NASA aircraft fuel conservation technology program

NASA Technical Reports Server (NTRS)

1975-01-01

The costs and benefits of the NASA Aircraft Fuel Conservation Technology Program are discussed. Consideration is given to a present worth analysis of the planned program expenditures, an examination of the fuel savings to be obtained by the year 2005 and the worth of this fuel savings relative to the investment required, a comparison of the program funding with that planned by other Federal agencies for energy conservation, an examination of the private industry aeronautical research and technology financial posture for the period FY 76 - FY 85, and an assessment of the potential impacts on air and noise pollution. To aid in this analysis, a computerized fleet mix forecasting model was developed. This model enables the estimation of fuel consumption and present worth of fuel expenditures for selected commerical aircraft fleet mix scenarios.

Cargo Logistics Airlift Systems Study (CLASS). Volume 4: Future requirements of dedicated freighter aircraft to year 2008

NASA Technical Reports Server (NTRS)

Burby, R. J.

1979-01-01

The 1978 fleet operations are extended to the year 1992, thus providing an evaluation of current aircraft types in meeting the ensuing increased market demand. Possible changes in the fleet mix and the resulting economic situation are defined in terms of the number of units of each type aircraft and the resulting growth in operational frequency. Among the economic parameters considered are the associated investment required by the airline, the return on investment to the airline, and the accompanying levels of cash flow and operating income. Against this background the potential for a derivative aircraft to enter fleet operations in 1985 is defined as a function of payload size and as affected by 1980 technology. In a similar manner, the size and potential for a new dedicated 1990 technology, freighter aircraft to become operational in 1995 is established. The resulting aircraft and fleet operational and economic characteristics are evaluated over the period 1994 to 2008. The impacts of restricted growth in operational frequency, reduced market demand, variations in aircraft configurations, and military participation, are assessed.

Mixed-Modal Household Vehicle Transactions

DOT National Transportation Integrated Search

2016-07-13

This study examines household vehicle fleets with a specific focus on transaction decisions that lead to their formation over time. One main focus of this study is also non-motorized vehicles, more specifically bicycles, and their role in these house...

Discrete Optimization Model for Vehicle Routing Problem with Scheduling Side Cosntraints

NASA Astrophysics Data System (ADS)

Juliandri, Dedy; Mawengkang, Herman; Bu'ulolo, F.

2018-01-01

Vehicle Routing Problem (VRP) is an important element of many logistic systems which involve routing and scheduling of vehicles from a depot to a set of customers node. This is a hard combinatorial optimization problem with the objective to find an optimal set of routes used by a fleet of vehicles to serve the demands a set of customers It is required that these vehicles return to the depot after serving customers’ demand. The problem incorporates time windows, fleet and driver scheduling, pick-up and delivery in the planning horizon. The goal is to determine the scheduling of fleet and driver and routing policies of the vehicles. The objective is to minimize the overall costs of all routes over the planning horizon. We model the problem as a linear mixed integer program. We develop a combination of heuristics and exact method for solving the model.

Access to Space : The Future of U.S. Space Transportation Systems

DOT National Transportation Integrated Search

1990-04-01

The United States now has an operating, mixed fleet comprised of reusable Space Shuttle orbiters and expendable launch vehicles (ELVs). The government and the private sector have invested in new launch technologies and established a fledgling private...

Japanese and Taiwanese pelagic longline fleet dynamics and the impacts of climate change in the southern Indian Ocean

NASA Astrophysics Data System (ADS)

Michael, P. E.; Wilcox, C.; Tuck, G. N.; Hobday, A. J.; Strutton, P. G.

2017-06-01

Climate change is projected to continue shifting the distribution of marine species, leading to changes in local assemblages and different interactions with human activities. With regard to fisheries, understanding the relationship between fishing fleets, target species catch per unit effort (CPUE), and the environment enhances our ability to anticipate fisher response and is an essential step towards proactive management. Here, we explore the potential impact of climate change in the southern Indian Ocean by modelling Japanese and Taiwanese pelagic longline fleet dynamics. We quantify the mean and variability of target species CPUE and the relative value and cost of fishing in different areas. Using linear mixed models, we identify fleet-specific effort allocation strategies most related to observed effort and predict the future distribution of effort and tuna catch under climate change for 2063-2068. The Japanese fleet's strategy targets high-value species and minimizes the variability in CPUE of the primary target species. Conversely, the Taiwanese strategy indicated flexible targeting of a broad range of species, fishing in areas of high and low variability in catch, and minimizing costs. The projected future mean and variability in CPUE across species suggest a slight increase in CPUE in currently high CPUE areas for most species. The corresponding effort projections suggest a slight increase in Japanese effort in the western and eastern study area, and Taiwanese effort increasing east of Madagascar. This approach provides a useful method for managers to explore the impacts of different fishing and fleet management strategies for the future.

Assessment of Environmental Impacts of Light-Duty Vehicle Dieselization

DOT National Transportation Integrated Search

1980-06-01

This report provides a first-level assessment of the environmental effects which might result if diesel vehicles in large numbers were produced and sold, thereby changing the mix of vehicles in the in-use fleet so that a substantial fraction were die...

A green vehicle routing problem with customer satisfaction criteria

NASA Astrophysics Data System (ADS)

Afshar-Bakeshloo, M.; Mehrabi, A.; Safari, H.; Maleki, M.; Jolai, F.

2016-12-01

This paper develops an MILP model, named Satisfactory-Green Vehicle Routing Problem. It consists of routing a heterogeneous fleet of vehicles in order to serve a set of customers within predefined time windows. In this model in addition to the traditional objective of the VRP, both the pollution and customers' satisfaction have been taken into account. Meanwhile, the introduced model prepares an effective dashboard for decision-makers that determines appropriate routes, the best mixed fleet, speed and idle time of vehicles. Additionally, some new factors evaluate the greening of each decision based on three criteria. This model applies piecewise linear functions (PLFs) to linearize a nonlinear fuzzy interval for incorporating customers' satisfaction into other linear objectives. We have presented a mixed integer linear programming formulation for the S-GVRP. This model enriches managerial insights by providing trade-offs between customers' satisfaction, total costs and emission levels. Finally, we have provided a numerical study for showing the applicability of the model.

Community-LINE Source Model (C-LINE) to estimate roadway emissions

EPA Pesticide Factsheets

C-LINE is a web-based model that estimates emissions and dispersion of toxic air pollutants for roadways in the U.S. This reduced-form air quality model examines what-if scenarios for changes in emissions such as traffic volume fleet mix and vehicle speed.

Transforming the Civil Reserve Air Fleet (CRAF) to Enable Combat Power in a Fiscally Constrained Environment

DTIC Science & Technology

2010-10-27

provides global reach through a mix of organic 1 Mr. Craig Koontz , “USTRANSCOM,” Powerpoint...Executive Working Group 20 May 2010." Powerpoint. 20 May 2010. Koontz , Craig. “USTRANSCOM.” Powerpoint. 13 September 2010. Lude, Col Carl

Estimating Energy Efficiency of Connected and Autonomous Vehicles in a Mixed Fleet

DOT National Transportation Integrated Search

2018-05-01

Jing Dong (orcid.org/0000-0002-7304-8430); Liang Hu (orcid.org/0000-0001-6351-8542); Chaoru Lu (orcid.org/0000-0001-8418-7658); Connected and autonomous vehicle (CAV) technologies are likely to be gradually implemented over time and in a traffic envi...

Service Vessel Analysis. Vol. I : Seagoing and Coastal Vessel Requirements for Servicing Aids to Navigation.

DOT National Transportation Integrated Search

1987-09-01

This analysis determines the number, mix, and home ports of vessels required to replace the aging fleet of WLB (seagoing) and WLM (coastal) buoy tenders currently servicing aids to navigation. A cast study approach was used. Differing values of vesse...

A methodology to enable rapid evaluation of aviation environmental impacts and aircraft technologies

NASA Astrophysics Data System (ADS)

Becker, Keith Frederick

Commercial aviation has become an integral part of modern society and enables unprecedented global connectivity by increasing rapid business, cultural, and personal connectivity. In the decades following World War II, passenger travel through commercial aviation quickly grew at a rate of roughly 8% per year globally. The FAA's most recent Terminal Area Forecast predicts growth to continue at a rate of 2.5% domestically, and the market outlooks produced by Airbus and Boeing generally predict growth to continue at a rate of 5% per year globally over the next several decades, which translates into a need for up to 30,000 new aircraft produced by 2025. With such large numbers of new aircraft potentially entering service, any negative consequences of commercial aviation must undergo examination and mitigation by governing bodies so that growth may still be achieved. Options to simultaneously grow while reducing environmental impact include evolution of the commercial fleet through changes in operations, aircraft mix, and technology adoption. Methods to rapidly evaluate fleet environmental metrics are needed to enable decision makers to quickly compare the impact of different scenarios and weigh the impact of multiple policy options. As the fleet evolves, interdependencies may emerge in the form of tradeoffs between improvements in different environmental metrics as new technologies are brought into service. In order to include the impacts of these interdependencies on fleet evolution, physics-based modeling is required at the appropriate level of fidelity. Evaluation of environmental metrics in a physics-based manner can be done at the individual aircraft level, but will then not capture aggregate fleet metrics. Contrastingly, evaluation of environmental metrics at the fleet level is already being done for aircraft in the commercial fleet, but current tools and approaches require enhancement because they currently capture technology implementation through post-processing, which does not capture physical interdependencies that may arise at the aircraft-level. The goal of the work that has been conducted here was the development of a methodology to develop surrogate fleet approaches that leverage the capability of physics-based aircraft models and the development of connectivity to fleet-level analysis tools to enable rapid evaluation of fuel burn and emissions metrics. Instead of requiring development of an individual physics-based model for each vehicle in the fleet, the surrogate fleet approaches seek to reduce the number of such models needed while still accurately capturing performance of the fleet. By reducing the number of models, both development time and execution time to generate fleet-level results may also be reduced. The initial steps leading to surrogate fleet formulation were a characterization of the commercial fleet into groups based on capability followed by the selection of a reference vehicle model and a reference set of operations for each group. Next, three potential surrogate fleet approaches were formulated. These approaches include the parametric correction factor approach, in which the results of a reference vehicle model are corrected to match the aggregate results of each group; the average replacement approach, in which a new vehicle model is developed to generate aggregate results of each group, and the best-in-class replacement approach, in which results for a reference vehicle are simply substituted for the entire group. Once candidate surrogate fleet approaches were developed, they were each applied to and evaluated over the set of reference operations. Then each approach was evaluated for their ability to model variations in operations. Finally, the ability of each surrogate fleet approach to capture implementation of different technology suites along with corresponding interdependencies between fuel burn and emissions was evaluated using the concept of a virtual fleet to simulate the technology response of multiple aircraft families. The results of experimentation led to a down selection to the best approach to use to rapidly characterize the performance of the commercial fleet for accurately in the context of acceptability of current fleet evaluation methods. The parametric correction factor and average replacement approaches were shown to be successful in capturing reference fleet results as well as fleet performance with variations in operations. The best-in-class replacement approach was shown to be unacceptable as a model for the larger fleet in each of the scenarios tested. Finally, the average replacement approach was the only one that was successful in capturing the impact of technologies on a larger fleet. These results are meaningful because they show that it is possible to calculate the fuel burn and emissions of a larger fleet with a reduced number of physics-based models within acceptable bounds of accuracy. At the same time, the physics-based modeling also provides the ability to evaluate the impact of technologies on fleet-level fuel burn and emissions metrics. The value of such a capability is that multiple future fleet scenarios involving changes in both aircraft operations and technology levels may now be rapidly evaluated to inform and equip policy makers of the implications of impacts of changes on fleet-level metrics.

Future orbital transfer vehicle technology study. Volume 2: Technical report

NASA Technical Reports Server (NTRS)

Davis, E. E.

1982-01-01

Missions for future orbit transfer vehicles (1995-2010) are identified and the technology, operations and vehicle concepts that satisfy the transportation requirements are defined. Comparison of reusable space and ground based LO2/LH2 OTV's was made. Both vehicles used advanced space engines and aero assist capability. The SB OTV provided advantages in life cycle cost, performance and potential for improvement. Comparison of an all LO2/LH2 OTV fleet with a fleet of LO2/LH2 OTVs and electric OTV's was also made. The normal growth technology electric OTV used silicon cells with heavy shielding and argon ion thrusters. This provided a 23% advantage in total transportation cost. The impact of accelerated technology was considered in terms of improvements in performance and cost effectiveness. The accelerated technology electric vehicle used GaAs cells and annealing but did not result in the mixed fleet being any cheaper than an all LO2/LH2 OTV fleet. It is concluded that reusable LO2/LH2 OTV's can serve all general purpose cargo roles between LEO and GEO for the forseeable future. The most significant technology for the second generation vehicle would be space debris protection, on-orbit propellant storage and transfer and on-orbit maintenance capability.

Multi-vehicle mobility allowance shuttle transit (MAST) system : an analytical model to select the fleet size and a scheduling heuristic.

DOT National Transportation Integrated Search

2012-06-01

The mobility allowance shuttle transit (MAST) system is a hybrid transit system in which vehicles are : allowed to deviate from a fixed route to serve flexible demand. A mixed integer programming (MIP) : formulation for the static scheduling problem ...

Payload Flight Assignments: NASA Mixed Fleet

NASA Technical Reports Server (NTRS)

Parker, Robert A. R.

1997-01-01

This manifest summarizes the missions planned by NASA for the Space Shuttle and Expendable Launch Vehicles (ELV's) as of the date of publication. Space Shuttle and ELV missions are shown through calendar year 2003. Space Shuttle missions for calendar years 2002-2003 are under review pending the resolution of details in the assembly sequence of the International Space Station (ISS).

Fleets of enduring drones to probe atmospheric phenomena with clouds

NASA Astrophysics Data System (ADS)

Lacroix, Simon; Roberts, Greg; Benard, Emmanuel; Bronz, Murat; Burnet, Frédéric; Bouhoubeiny, Elkhedim; Condomines, Jean-Philippe; Doll, Carsten; Hattenberger, Gautier; Lamraoui, Fayçal; Renzaglia, Alessandro; Reymann, Christophe

2016-04-01

A full spatio-temporal four-dimensional characterization of the microphysics and dynamics of cloud formation including the onset of precipitation has never been reached. Such a characterization would yield a better understanding of clouds, e.g. to assess the dominant mixing mechanism and the main source of cloudy updraft dilution. It is the sampling strategy that matters: fully characterizing the evolution over time of the various parameters (P, T, 3D wind, liquid water content, aerosols...) within a cloud volume requires dense spatial sampling for durations of the order of one hour. A fleet of autonomous lightweight UAVs that coordinate themselves in real-time as an intelligent network can fulfill this purpose. The SkyScanner project targets the development of a fleet of autonomous UAVs to adaptively sample cumuli, so as to provide relevant data to address long standing questions in atmospheric science. It mixes basic researches and experimental developments, and gathers scientists in UAV conception, in optimal flight control, in intelligent cooperative behaviors, and of course atmospheric scientists. Two directions of researches are explored: optimal UAV conception and control, and optimal control of a fleet of UAVs. The design of UAVs for atmospheric science involves the satisfaction of trade-offs between payload, endurance, ease of deployment... A rational conception scheme that integrates the constraints to optimize a series of criteria, in particular energy consumption, would yield the definition of efficient UAVs. This requires a fine modeling of each involved sub-system and phenomenon, from the motor/propeller efficiency to the aerodynamics at small scale, including the flight control algorithms. The definition of mission profiles is also essential, considering the aerodynamics of clouds, to allow energy harvesting schemes that exploit thermals or gusts. The conception also integrates specific sensors, in particular wind sensor, for which classic technologies are challenged at the low speeds of lightweight UAVs. The overall control of the fleet so as to gather series of synchronized data in the cloud volume is a poorly informed and highly constrained adaptive sampling problem, in which the UAV motions must be defined to maximize the amount of gathered information and the mission duration. The overall approach casts the problem in a hierarchy of two modeling and decision stages. A macroscopic parametrized model of the cloud is built from the gathered data and exploited at the higher level by an operator, who sets information gathering goals. A subset of the UAV fleet is allocated to each goal, considering the current fleet state. These high level goals are handled by the lower level, which autonomously optimizes the selected UAVs trajectories using an on-line updated dense model of the variables of interest. Building the models involves Gaussian processes techniques (kriging) to fuse the gathered data with a generic cumulus conceptual model, the latter being defined from thorough statistics on realistic MesoNH cloud simulations. The model is exploited by a planner to generate trajectories that minimize the uncertainty in the map, while steering the vehicles within the air flows to save energy.

Flying the Needles: Flight Deck Automation Erodes Fine-Motor Flying Skills Among Airline Pilots.

PubMed

Haslbeck, Andreas; Hoermann, Hans-Juergen

2016-06-01

The aim of this study was to evaluate the influence of practice and training on fine-motor flying skills during a manual instrument landing system (ILS) approach. There is an ongoing debate that manual flying skills of long-haul crews suffer from a lack of flight practice due to conducting only a few flights per month and the intensive use of automation. However, objective evidence is rare. One hundred twenty-six randomly selected airline pilots had to perform a manual flight scenario with a raw data precision approach. Pilots were assigned to four equal groups according to their level of practice and training by fleet (short-haul, long-haul) and rank (first officer, captain). Average ILS deviation scores differed significantly in relation to the group assignments. The strongest predictor variable was fleet, indicating degraded performance among long-haul pilots. Manual flying skills are subject to erosion due to a lack of practice on long-haul fleets: All results support the conclusion that recent flight practice is a significantly stronger predictor for fine-motor flying performance than the time period since flight school or even the total or type-specific flight experience. Long-haul crews have to be supported in a timely manner by adequate training tailored to address manual skills or by operational provisions like mixed-fleet flying or more frequent transitions between short-haul and long-haul operation. © 2016, Human Factors and Ergonomics Society.

Estimates of Potential Increases in Airport Capacity through ATC (Air Traffic Control) System Improvements in the Airport and Terminal Areas

DTIC Science & Technology

1987-10-01

departures); and (3) departures-only. A fleet mix typical of most majur airports was selected consisting of 15 percent small aircraft (e.g., Swearingen SW-4...schedules predicated on VFR operations can result in substantial delays when weather conditions force the use of IFR operations. 5.1 Difference Between

Net air emissions from electric vehicles: the effect of carbon price and charging strategies.

PubMed

Peterson, Scott B; Whitacre, J F; Apt, Jay

2011-03-01

Plug-in hybrid electric vehicles (PHEVs) may become part of the transportation fleet on time scales of a decade or two. We calculate the electric grid load increase and emissions due to vehicle battery charging in PJM and NYISO with the current generation mix, the current mix with a $50/tonne CO(2) price, and this case but with existing coal generators retrofitted with 80% CO(2) capture. We also examine all new generation being natural gas or wind+gas. PHEV fleet percentages between 0.4 and 50% are examined. Vehicles with small (4 kWh) and large (16 kWh) batteries are modeled with driving patterns from the National Household Transportation Survey. Three charging strategies and three scenarios for future electric generation are considered. When compared to 2020 CAFE standards, net CO(2) emissions in New York are reduced by switching from gasoline to electricity; coal-heavy PJM shows somewhat smaller benefits unless coal units are fitted with CCS or replaced with lower CO(2) generation. NO(X) is reduced in both RTOs, but there is upward pressure on SO(2) emissions or allowance prices under a cap.

Environmental Impacts of Future Urban Deployment of Electric Vehicles: Assessment Framework and Case Study of Copenhagen for 2016-2030.

PubMed

Bohnes, Florence A; Gregg, Jay S; Laurent, Alexis

2017-12-05

To move toward environmentally sustainable transport systems, electric vehicles (EVs) are increasingly seen as viable alternatives to internal combustion vehicles (ICVs). To ensure effectiveness of such deployment, holistic assessments of environmental impacts can help decision-makers determine optimized urban strategies in a long-term perspective. However, explicit guidance and conduct of such assessments are currently missing. Here, we therefore propose a framework using life cycle assessment that enables the quantification of environmental impacts of a transport system at full urban scale from a fleet-based, foresight perspective. The analysis of the passenger car fleet development in the city of Copenhagen for the years 2016-2030 is used as a proof-of-concept. We modeled and compared five powertrain technologies, and we assessed four fleet-based scenarios for the entire city. Our results showed relative environmental benefits from range-extended and fuel-cell EVs over ICVs and standard EVs. These results were found to be sensitive to local settings, like electricity grid mix, which could alter the relative environmental performances across EV technologies. The comprehensive framework developed here can be applied to other geographic areas and contexts to assess the environmental sustainability of transport systems.

U.S. Coast Guard Fleet Mix Planning: A Decision Support System Prototype

DTIC Science & Technology

1991-03-01

91-16785 Al ’ 1 1 1 Unclassified SECURITY CLASSIFICATION OF ThIS PAGE REPORT DOCUMENTATION PAGE I L REPORTSECURITY CLASSIFICATION lb. RESTRICTIVE...MARKINGS Unclassified 2a. SECURITY CLASSIFICATION AUTHORITY 3. DISTRIBUTION/ AVAILABITY OF REPORT Approved for public release; distribution is inlimited...2b. DECIASSIFICATION/DOWNGRADING SCHEDULE 4. PERFORMING ORGANIZATION REPORT NUMBER(S) 5. MONITORING ORGANIZATION REPORT NUMBER(S) 6a. NAME OF

Life Cycle Cost Analysis of Ready Mix Concrete Plant

NASA Astrophysics Data System (ADS)

Topkar, V. M.; Duggar, A. R.; Kumar, A.; Bonde, P. P.; Girwalkar, R. S.; Gade, S. B.

2013-11-01

India, being a developing nation is experiencing major growth in its infrastructural sector. Concrete is the major component in construction. The requirement of good quality of concrete in large quantities can be fulfilled by ready mix concrete batching and mixing plants. The paper presents a technique of applying the value engineering tool life cycle cost analysis to a ready mix concrete plant. This will help an investor or an organization to take investment decisions regarding a ready mix concrete facility. No economic alternatives are compared in this study. A cost breakdown structure is prepared for the ready mix concrete plant. A market survey has been conducted to collect realistic costs for the ready mix concrete facility. The study establishes the cash flow for the ready mix concrete facility helpful in investment and capital generation related decisions. Transit mixers form an important component of the facility and are included in the calculations. A fleet size for transit mixers has been assumed for this purpose. The life cycle cost has been calculated for the system of the ready mix concrete plant and transit mixers.

System of systems design: Evaluating aircraft in a fleet context using reliability and non-deterministic approaches

NASA Astrophysics Data System (ADS)

Frommer, Joshua B.

This work develops and implements a solution framework that allows for an integrated solution to a resource allocation system-of-systems problem associated with designing vehicles for integration into an existing fleet to extend that fleet's capability while improving efficiency. Typically, aircraft design focuses on using a specific design mission while a fleet perspective would provide a broader capability. Aspects of design for both the vehicles and missions may be, for simplicity, deterministic in nature or, in a model that reflects actual conditions, uncertain. Toward this end, the set of tasks or goals for the to-be-planned system-of-systems will be modeled more accurately with non-deterministic values, and the designed platforms will be evaluated using reliability analysis. The reliability, defined as the probability of a platform or set of platforms to complete possible missions, will contribute to the fitness of the overall system. The framework includes building surrogate models for metrics such as capability and cost, and includes the ideas of reliability in the overall system-level design space. The concurrent design and allocation system-of-systems problem is a multi-objective mixed integer nonlinear programming (MINLP) problem. This study considered two system-of-systems problems that seek to simultaneously design new aircraft and allocate these aircraft into a fleet to provide a desired capability. The Coast Guard's Integrated Deepwater System program inspired the first problem, which consists of a suite of search-and-find missions for aircraft based on descriptions from the National Search and Rescue Manual. The second represents suppression of enemy air defense operations similar to those carried out by the U.S. Air Force, proposed as part of the Department of Defense Network Centric Warfare structure, and depicted in MILSTD-3013. The two problems seem similar, with long surveillance segments, but because of the complex nature of aircraft design, the analysis of the vehicle for high-speed attack combined with a long loiter period is considerably different from that for quick cruise to an area combined with a low speed search. However, the framework developed to solve this class of system-of-systems problem handles both scenarios and leads to a solution type for this kind of problem. On the vehicle-level of the problem, different technology can have an impact on the fleet-level. One such technology is Morphing, the ability to change shape, which is an ideal candidate technology for missions with dissimilar segments, such as the aforementioned two. A framework, using surrogate models based on optimally-sized aircraft, and using probabilistic parameters to define a concept of operations, is investigated; this has provided insight into the setup of the optimization problem, the use of the reliability metric, and the measurement of fleet level impacts of morphing aircraft. The research consisted of four phases. The two initial phases built and defined the framework to solve system-of-systems problem; these investigations used the search-and-find scenario as the example application. The first phase included the design of fixed-geometry and morphing aircraft for a range of missions and evaluated the aircraft capability using non-deterministic mission parameters. The second phase introduced the idea of multiple aircraft in a fleet, but only considered a fleet consisting of one aircraft type. The third phase incorporated the simultaneous design of a new vehicle and allocation into a fleet for the search-and-find scenario; in this phase, multiple types of aircraft are considered. The fourth phase repeated the simultaneous new aircraft design and fleet allocation for the SEAD scenario to show that the approach is not specific to the search-and-find scenario. The framework presented in this work appears to be a viable approach for concurrently designing and allocating constituents in a system, specifically aircraft in a fleet. The research also shows that new technology impact can be assessed at the fleet level using conceptual design principles.

Study of cost/benefit tradeoffs for reducing the energy consumption of the commercial air transportation system

NASA Technical Reports Server (NTRS)

Coykendall, R. E.; Curry, J. K.; Domke, A. E.; Madsen, S. E.

1976-01-01

Economic studies were conducted for three general fuel conserving options: (1) improving fuel consumption characteristics of existing aircraft via retrofit modifications; (2) introducing fuel efficient derivations of existing production aircraft and/or introducing fuel efficient, current state-of-the-art new aircraft; and (3) introducing an advanced state-of-the-art turboprop airplane. These studies were designed to produce an optimum airline fleet mix for the years 1980, 1985 and 1990. The fleet selected accommodated a normal growth market by introducing somewhat larger aircraft while solving for maximum departure frequencies and a minimum load factor corresponding to a 15% investment hurdle rate. Fuel burnt per available-seat-mile flown would drop 22% from 1980 to 1990 due to the use of more fuel efficient aircraft designs, larger average aircraft size, and increased seating density. An inflight survey was taken to determine air traveler attitudes towards a new generation of advanced turboprops.

Future Jet Technologies, Part C

NASA Astrophysics Data System (ADS)

Gal-Or, Benjamin

2013-06-01

This updated, PART C REVIEW, covers the dangerous global spread of JS-stealth, drone technology [1-91], canard-free, stealth, new agile drones and the highly debated, 480 billion F-35 International Program as reported on March 13, 2013 to the U.S. Congress [92]. Due to serious design issues, spiraling high costs and years in delays, alternatives are analyzed here, depicted and proposed, mainly from the propulsion-design point of view. These include fleets of low-cost, stealth, jet-steered-drones mixed with non-stealthy, low-cost, ready-to-be-delivered, U.S. or European or Russian fighter aircraft. Can a few F-35s win against large fleets of stealth agile drones? To understand the dangers and critical issues involved, the author's own, past classified information is partly disclosed, while resorting to images in Figs. 2(a) and 2(b) taken from his book [2] and from Wikipedia, the "Free Encyclopedia", in all other images.

Biofuel: A Comparative Case Study

DTIC Science & Technology

2013-06-01

operated on a 50/50 biofuel mix for the first time. b. The Great Green Fleet Meeting the SECNAV’s requirement to demonstrate the viability of ...is interested in the commercial viability of biofuels. 16 THIS PAGE INTENTIONALLY LEFT BLANK 17 III. LITERATURE REVIEW A . BIOFUELS...1970s served as the catalyst for the first serious investigation into the viability of algae as a source of energy (Department of Energy [DoE], 2010

Subsonic Aircraft Soot: A Tracer Documenting Stratospheric Vertical Mixing and Barriers to Inter-Hemispheric Exchanges

NASA Technical Reports Server (NTRS)

Pueschel, Rudolf F.; Gore, Warren J. (Technical Monitor)

1996-01-01

Pole-to-pole variability of soot aerosol from subsonic aircraft is evidence of two important aspects of stratospheric transport. Vertical transport to 20 km pressure altitude from flight levels near 10-12 km cannot be explained by isentropic mixing. Instead, lofting in the tropics is a possibility. A strong meridional gradient implies that stratospheric soot aerosol residence time is shorter than are mixing times between the hemispheres. Therefore, little if any of exhaust constituents (with residence times similar to that of aircraft soot aerosol), emitted in heavily traveled flight corridors in northern mid-latitudes by a future supersonic fleet, would be transported to the southern hemisphere. However, a significant fraction of NOx could be lofted to altitudes above flight levels where it would dominate ozone depletion.

Ideal free distribution or dynamic game? An agent-based simulation study of trawling strategies with varying information

NASA Astrophysics Data System (ADS)

Beecham, J. A.; Engelhard, G. H.

2007-10-01

An ecological economic model of trawling is presented to demonstrate the effect of trawling location choice strategy on net input (rate of economic gain of fish caught per time spent less costs). Fishing location choice is considered to be a dynamic process whereby trawlers chose from among a repertoire of plastic strategies that they modify if their gains fall below a fixed proportion of the mean gains of the fleet as a whole. The distribution of fishing across different areas of a fishery follows an approximate ideal free distribution (IFD) with varying noise due to uncertainty. The least-productive areas are not utilised because initial net input never reaches the mean yield of better areas subject to competitive exploitation. In cases, where there is a weak temporal autocorrelation between fish stocks in a specific location, a plastic strategy of local translocation between trawls mixed with longer-range translocation increases realised input. The trawler can change its translocation strategy in the light of information about recent trawling success compared to its long-term average but, in contrast to predictions of the Marginal Value Theorem (MVT) model, does not know for certain what it will find by moving, so may need to sample new patches. The combination of the two types of translocation mirrored beam-trawling strategies used by the Dutch fleet and the resultant distribution of trawling effort is confirmed by analysis of historical effort distribution of British otter trawling fleets in the North Sea. Fisheries exploitation represents an area where dynamic agent-based adaptive models may be a better representation of the economic dynamics of a fleet than classically inspired optimisation models.

Over the Beach. US Army Amphibious Operations in the Korean War

DTIC Science & Technology

2008-01-01

target of nuclear attack would result in a large and continuing requirement for logistics-over-the­ shore (LOTS) and amphibious resupply operations...Army Ram Fleet, initially under Porter’s control and later under General Ulysses S. Grant, the brigade conducted operations with mixed results until...same period, the Marine Corps underwent changes that would ultimately result in the adoption of landing force operations as its primary mission. The

41 CFR 102-34.330 - What is the Federal Fleet Report?

Code of Federal Regulations, 2010 CFR

2010-07-01

... Fleet Report? 102-34.330 Section 102-34.330 Public Contracts and Property Management Federal Property... MANAGEMENT Federal Fleet Report § 102-34.330 What is the Federal Fleet Report? The Federal Fleet Report (FFR..., in evaluating the effectiveness of the operation and management of individual fleets to determine...

Sixth Fleet Combat Stores Ship Resupply Model

DTIC Science & Technology

1989-03-01

Jumbo Block BR 0.25 288 0.98 0021 Fruit Chewies PG 0.25 360 1.08 0022 Nestles Crunch BR 0.25 360 0.78 0023 Kit Kat BR 0.25 432 1.55 0131 Cashews EA...2.33 12 0.27 0132 Mixed Peanuts EA 1.28 12 0.27 0133 Peanuts EA 0.78 12 0.27 0134 Spanish Nuts EA 0.78 12 0.36 0151 Baked Beans CN 0.28 24 0.40 0152

Study of cost/benefit tradeoffs for reducing the energy consumption of the commercial air transportation system. [Advanced turboprop introduction

DOE Office of Scientific and Technical Information (OSTI.GOV)

Coykendall, R.E.; Curry, J.K.; Domke, A.E.

1976-06-01

Economic studies were conducted for three general fuel-conserving options: (1) improving fuel-consumption characteristics of existing aircraft via retrofit modifications; (2) introducing fuel-efficient derivations of existing production aircraft and/or introducing fuel efficient, current state-of-the-art new aircraft; and (3) introducing an advanced state-of-the-art turboprop airplane. These studies were designed to produce an optimum airline fleet mix for the years 1980, 1985 and 1990. The fleet selected accommodated a normal growth market by introducing somewhat larger aircraft while solving for maximum departure frequencies and a minimum load factor corresponding to a 15% investment hurdle rate. Fuel burnt per available-seat-mile flown would drop 22%more » from 1980 to 1990 due to the use of more fuel efficient aircraft designs, larger average aircraft size, and increased seating density. An inflight survey was taken to determine air traveler attitudes towards a new generation of advanced turboprops. (Author) (GRA)« less

Environmental and energy implications of plug-in hybrid-electric vehicles.

PubMed

Stephan, Craig H; Sullivan, John

2008-02-15

We analyze the effect of charging a significant number of plug-in hybrid vehicles (PHEVs) in the United States using presently available night-time spare electric capacity in the shortterm and new base-load capacity in the long term. Nationwide, there is currently ample spare night-time utility capacityto charge even a large fleet of PHEVs. Using the mix of generating plants expected to be used for PHEV charging, we find that, while driving on battery power, PHEVs compared to their conventional hybrid counterparts reduce CO2 emissions by 25% in the short term and as much as 50% in the long term. The shortterm fractional increase in demand for margin fuels such as natural gas is found to be roughly twice the fractional penetration of PHEVs into the nationwide light-duty vehicle fleet. We also compare, on an energy basis, the CO2 savings of replacing coal plants versus replacing conventional vehicles with PHEVs. The result is found to depend critically on the fuel economy of the vehicles displaced by the PHEVs.

Enabling Data Intensive Science through Service Oriented Science: Virtual Laboratories and Science Gateways

NASA Astrophysics Data System (ADS)

Lescinsky, D. T.; Wyborn, L. A.; Evans, B. J. K.; Allen, C.; Fraser, R.; Rankine, T.

2014-12-01

We present collaborative work on a generic, modular infrastructure for virtual laboratories (VLs, similar to science gateways) that combine online access to data, scientific code, and computing resources as services that support multiple data intensive scientific computing needs across a wide range of science disciplines. We are leveraging access to 10+ PB of earth science data on Lustre filesystems at Australia's National Computational Infrastructure (NCI) Research Data Storage Infrastructure (RDSI) node, co-located with NCI's 1.2 PFlop Raijin supercomputer and a 3000 CPU core research cloud. The development, maintenance and sustainability of VLs is best accomplished through modularisation and standardisation of interfaces between components. Our approach has been to break up tightly-coupled, specialised application packages into modules, with identified best techniques and algorithms repackaged either as data services or scientific tools that are accessible across domains. The data services can be used to manipulate, visualise and transform multiple data types whilst the scientific tools can be used in concert with multiple scientific codes. We are currently designing a scalable generic infrastructure that will handle scientific code as modularised services and thereby enable the rapid/easy deployment of new codes or versions of codes. The goal is to build open source libraries/collections of scientific tools, scripts and modelling codes that can be combined in specially designed deployments. Additional services in development include: provenance, publication of results, monitoring, workflow tools, etc. The generic VL infrastructure will be hosted at NCI, but can access alternative computing infrastructures (i.e., public/private cloud, HPC).The Virtual Geophysics Laboratory (VGL) was developed as a pilot project to demonstrate the underlying technology. This base is now being redesigned and generalised to develop a Virtual Hazards Impact and Risk Laboratory (VHIRL); any enhancements and new capabilities will be incorporated into a generic VL infrastructure. At same time, we are scoping seven new VLs and in the process, identifying other common components to prioritise and focus development.

Contributing Data to the Fleet DNA Project (Brochure)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2014-09-01

The Fleet DNA clearinghouse of commercial fleet transportation data helps vehicle manufacturers and developers optimize vehicle designs and helps fleet managers choose advanced technologies for their fleets. This online tool - available at www.nrel.gov/fleetdna - provides data summaries and visualizations similar to real-world 'genetics' for medium- and heavy-duty commercial fleet vehicles operating within a variety of vocations. To contribute your fleet data, please contact Adam Duran of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) at adam.duran@nrel.gov or 303-275-4586.

41 CFR 101-39.104-1 - Consolidations into a fleet management system.

Code of Federal Regulations, 2010 CFR

2010-07-01

... fleet management system. 101-39.104-1 Section 101-39.104-1 Public Contracts and Property Management..., TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.104-1 Consolidations into a fleet management...

An approach to the drone fleet survivability assessment based on a stochastic continues-time model

NASA Astrophysics Data System (ADS)

Kharchenko, Vyacheslav; Fesenko, Herman; Doukas, Nikos

2017-09-01

An approach and the algorithm to the drone fleet survivability assessment based on a stochastic continues-time model are proposed. The input data are the number of the drones, the drone fleet redundancy coefficient, the drone stability and restoration rate, the limit deviation from the norms of the drone fleet recovery, the drone fleet operational availability coefficient, the probability of the drone failure-free operation, time needed for performing the required tasks by the drone fleet. The ways for improving the recoverable drone fleet survivability taking into account amazing factors of system accident are suggested. Dependencies of the drone fleet survivability rate both on the drone stability and the number of the drones are analysed.

Executive Order 13514: Federal Leadership in Environmental, Energy, and Economic Performance; Comprehensive Federal Fleet Management Handbook (Book)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Daley, R.; Ahdieh, N.; Bentley, J.

2014-01-01

A comprehensive Federal Fleet Management Handbook that builds upon the "Guidance for Federal Agencies on E.O. 13514 Section 12-Federal Fleet Management" and provides information to help fleet managers select optimal greenhouse gas and petroleum reduction strategies for each location, meeting or exceeding related fleet requirements, acquiring vehicles to support these strategies while minimizing fleet size and vehicle miles traveled, and refining strategies based on agency performance.

Fleet Management | Climate Neutral Research Campuses | NREL

Science.gov Websites

Fleet Management Fleet Management Research campuses often own and operate vehicles to carry out Sample Project Related Links Fleet Management Options The goal of fleet management within climate action alternative fuel use. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) outlines

48 CFR 51.204 - Use of interagency fleet management system (IFMS) vehicles and related services.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Contractor Use of Interagency Fleet Management System (IFMS) 51.204 Use of interagency fleet management system (IFMS) vehicles and related services. Contractors authorized to use interagency fleet management... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Use of interagency fleet...

National Clean Fleets Partnership (Fact Sheet)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2012-01-01

Provides an overview of Clean Cities National Clean Fleets Partnership (NCFP). The NCFP is open to large private-sector companies that have fleet operations in multiple states. Companies that join the partnership receive customized assistance to reduce petroleum use through increased efficiency and use of alternative fuels. This initiative provides fleets with specialized resources, expertise, and support to successfully incorporate alternative fuels and fuel-saving measures into their operations. The National Clean Fleets Partnership builds on the established success of DOE's Clean Cities program, which reduces petroleum consumption at the community level through a nationwide network of coalitions that work with localmore » stakeholders. Developed with input from fleet managers, industry representatives, and Clean Cities coordinators, the National Clean Fleets Partnership goes one step further by working with large private-sector fleets.« less

Alternative Fleet Architecture Design

DTIC Science & Technology

2005-08-01

Alternative Fleet Architecture Design Stuart E. Johnson and Arthur K. Cebrowski Center...2005 4. TITLE AND SUBTITLE Alternative Fleet Architecture Design 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d...these principles in mind. An alternative fleet architecture design and three examples of future fleet platform architectures are presented in this

State and Alternative Fuel Provider Fleets - Fleet Compliance Annual Report: Model Year 2015, Fiscal Year 2016

DOE Office of Scientific and Technical Information (OSTI.GOV)

The U.S. Department of Energy (DOE) regulates covered state government and alternative fuel provider fleets, pursuant to the Energy Policy Act of 1992 (EPAct), as amended. Covered fleets may meet their EPAct requirements through one of two compliance methods: Standard Compliance or Alternative Compliance. For model year (MY) 2015, the compliance rate with this program for the more than 3011 reporting fleets was 100%. More than 294 fleets used Standard Compliance and exceeded their aggregate MY 2015 acquisition requirements by 8% through acquisitions alone. The seven covered fleets that used Alternative Compliance exceeded their aggregate MY 2015 petroleum use reductionmore » requirements by 46%.« less

Initial development of a practical safety audit tool to assess fleet safety management practices.

PubMed

Mitchell, Rebecca; Friswell, Rena; Mooren, Lori

2012-07-01

Work-related vehicle crashes are a common cause of occupational injury. Yet, there are few studies that investigate management practices used for light vehicle fleets (i.e. vehicles less than 4.5 tonnes). One of the impediments to obtaining and sharing information on effective fleet safety management is the lack of an evidence-based, standardised measurement tool. This article describes the initial development of an audit tool to assess fleet safety management practices in light vehicle fleets. The audit tool was developed by triangulating information from a review of the literature on fleet safety management practices and from semi-structured interviews with 15 fleet managers and 21 fleet drivers. A preliminary useability assessment was conducted with 5 organisations. The audit tool assesses the management of fleet safety against five core categories: (1) management, systems and processes; (2) monitoring and assessment; (3) employee recruitment, training and education; (4) vehicle technology, selection and maintenance; and (5) vehicle journeys. Each of these core categories has between 1 and 3 sub-categories. Organisations are rated at one of 4 levels on each sub-category. The fleet safety management audit tool is designed to identify the extent to which fleet safety is managed in an organisation against best practice. It is intended that the audit tool be used to conduct audits within an organisation to provide an indicator of progress in managing fleet safety and to consistently benchmark performance against other organisations. Application of the tool by fleet safety researchers is now needed to inform its further development and refinement and to permit psychometric evaluation. Copyright © 2012 Elsevier Ltd. All rights reserved.

Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas

Science.gov Websites

Santa Fe Metro Fleet Runs on Natural Gas to someone by E-mail Share Alternative Fuels Data Center : Santa Fe Metro Fleet Runs on Natural Gas on Facebook Tweet about Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Twitter Bookmark Alternative Fuels Data Center: Santa Fe Metro Fleet

An investigation of rental rates for centralized fleet vehicles.

DOT National Transportation Integrated Search

1999-01-01

This report details a study to investigate the current rental rate structure used by the Division of Fleet Management (Fleet Management) to charge state agencies for the use of centralized fleet vehicles. The researchers conducted a literature review...

CleanFleet final report. Volume 8, fleet economics

DOT National Transportation Integrated Search

1995-12-01

The costs that face a fleet operator in implementing alternative motor fuels : into fleet operations are examined. The cost assessment is built upon a list of thirteen cost factors grouped into the three catagories: infrastructure costs, vehicle owni...

FleetDASH

DOE Office of Scientific and Technical Information (OSTI.GOV)

Singer, Mark R

2017-09-06

FleetDASH helps federal fleet managers maximize their use of alternative fuel. This presentation explains how the dashboard works and demonstrates the newest capabilities added to the tool. It also reviews complementary online tools available to fleet managers on the Alternative Fuel Data Center.

41 CFR 101-39.106 - Unlimited exemptions.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.106 Unlimited exemptions. Unlimited exemptions from inclusion in the fleet... below. Unlimited exemptions do not preclude agencies from requesting fleet management services, if...

Increasing Fleet Readiness Through Improved Distance Support

DTIC Science & Technology

2013-03-01

gis tic s D ata Pro ce ss  Tra ini ng  Da ta An aly ze  Da ta An...Format Fleet Maintenance Formatted Data /sData F.2.2 • ... Fleet Support Infrastructure Data ~ Formatted Trainin~ ata l Obtain and Format Fleet...system either by using a form or a spreadsheet F.2.2 Obtain Data from Fleet Recorded System Performance Data is downloaded from ship either manually

41 CFR 101-39.102 - Determinations.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.102 Determinations. Each determination to establish a fleet management system... name of the executive agency designated to be responsible for operating the fleet management system and...

Alternative fuel options and costs for use in Kansas and surrounding states

DOT National Transportation Integrated Search

1998-09-01

To meet state and federal mandates, state fleets, federal fleets, and fuel provider fleets must acquire alternatively fueled vehicles (AFVs). The Kansas House Bill 95-2161 exceeds the federal energy policy act regulations for state fleets. AFVs inclu...

Exact and Metaheuristic Approaches for a Bi-Objective School Bus Scheduling Problem.

PubMed

Chen, Xiaopan; Kong, Yunfeng; Dang, Lanxue; Hou, Yane; Ye, Xinyue

2015-01-01

As a class of hard combinatorial optimization problems, the school bus routing problem has received considerable attention in the last decades. For a multi-school system, given the bus trips for each school, the school bus scheduling problem aims at optimizing bus schedules to serve all the trips within the school time windows. In this paper, we propose two approaches for solving the bi-objective school bus scheduling problem: an exact method of mixed integer programming (MIP) and a metaheuristic method which combines simulated annealing with local search. We develop MIP formulations for homogenous and heterogeneous fleet problems respectively and solve the models by MIP solver CPLEX. The bus type-based formulation for heterogeneous fleet problem reduces the model complexity in terms of the number of decision variables and constraints. The metaheuristic method is a two-stage framework for minimizing the number of buses to be used as well as the total travel distance of buses. We evaluate the proposed MIP and the metaheuristic method on two benchmark datasets, showing that on both instances, our metaheuristic method significantly outperforms the respective state-of-the-art methods.

Well-to-wheel greenhouse gas emissions and energy use analysis of hypothetical fleet of electrified vehicles in Canada and the U.S

NASA Astrophysics Data System (ADS)

Maduro, Miguelangel

The shift to strong hybrid and electrified vehicle architectures engenders controversy and brings about many unanswered questions. It is unclear whether developed markets will have the infrastructure in place to support and successfully implement them. To date, limited effort has been made to comprehend if the energy and transportation solutions that work well for one city or geographic region may extend broadly. A region's capacity to supply a fleet of EVs, or plug-in hybrid vehicles with the required charging infrastructure, does not necessarily make such vehicle architectures an optimal solution. In this study, a mix of technologies ranging from HEV to PHEV and EREV through to Battery Electric Vehicles were analyzed and set in three Canadian Provinces and 3 U.S. Regions for the year 2020. Government agency developed environmental software tools were used to estimate greenhouse gas emissions and energy use. Projected vehicle technology shares were employed to estimate regional environmental implications. Alternative vehicle technologies and fuels are recommended for each region based on local power generation schemes.

National Clean Fleets Partnership (Fact Sheet)

DOE Office of Scientific and Technical Information (OSTI.GOV)

None, None

2014-01-01

Clean Cities' National Clean Fleets Partnership establishes strategic alliances with large fleets to help them explore and adopt alternative fuels and fuel economy measures to cut petroleum use. The initiative leverages the strength of nearly 100 Clean Cities coalitions, nearly 18,000 stakeholders, and more than 20 years of experience. It provides fleets with top-level support, technical assistance, robust tools and resources, and public acknowledgement to help meet and celebrate fleets' petroleum-use reductions.

Commercial vehicle fleet management and information systems. Technical memorandum 3 : ITS fleet management technology resource guide

DOT National Transportation Integrated Search

1997-05-01

In todays increasingly competitive economic environment, effective management of commercial vehicle fleets is important for all types of carriers and for the trucking industry as a whole. To meet fleet management needs, carriers increasingly are t...

41 CFR 101-39.203 - Obtaining motor vehicles for short-term use.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management... Fleet Management System (IFMS). Short-term use vehicles may be provided through Military Traffic... General Services Administration IFMS fleet management center. [56 FR 59888, Nov. 26, 1991] ...

41 CFR 101-39.202 - Contractor authorized services.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management System Services... related GSA Interagency Fleet Management System (IFMS) services solely for official purposes. (b) To the... -leased equipment which is not controlled by a GSA IFMS fleet management center, or for authorized...

78 FR 23935 - Federal Acquisition Regulation; Information Collection; Contractor Use of Interagency Fleet...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-23

...; Information Collection; Contractor Use of Interagency Fleet Management System Vehicles AGENCY: Department of... previously approved information collection requirement concerning contractor use of interagency fleet... Collection 9000- 0032, Contractor Use of Interagency Fleet Management System Vehicles, by any of the...

78 FR 64499 - Federal Acquisition Regulation; Submission for OMB Review; Contractor Use of Interagency Fleet...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-29

...; Submission for OMB Review; Contractor Use of Interagency Fleet Management System Vehicles AGENCY: Department... previously approved information collection requirement concerning contractor use of interagency fleet... comments identified by Information Collection 9000- 0032, Contractor Use of Interagency Fleet Management...

An optimization method for condition based maintenance of aircraft fleet considering prognostics uncertainty.

PubMed

Feng, Qiang; Chen, Yiran; Sun, Bo; Li, Songjie

2014-01-01

An optimization method for condition based maintenance (CBM) of aircraft fleet considering prognostics uncertainty is proposed. The CBM and dispatch process of aircraft fleet is analyzed first, and the alternative strategy sets for single aircraft are given. Then, the optimization problem of fleet CBM with lower maintenance cost and dispatch risk is translated to the combinatorial optimization problem of single aircraft strategy. Remain useful life (RUL) distribution of the key line replaceable Module (LRM) has been transformed into the failure probability of the aircraft and the fleet health status matrix is established. And the calculation method of the costs and risks for mission based on health status matrix and maintenance matrix is given. Further, an optimization method for fleet dispatch and CBM under acceptable risk is proposed based on an improved genetic algorithm. Finally, a fleet of 10 aircrafts is studied to verify the proposed method. The results shows that it could realize optimization and control of the aircraft fleet oriented to mission success.

An Optimization Method for Condition Based Maintenance of Aircraft Fleet Considering Prognostics Uncertainty

PubMed Central

Chen, Yiran; Sun, Bo; Li, Songjie

2014-01-01

An optimization method for condition based maintenance (CBM) of aircraft fleet considering prognostics uncertainty is proposed. The CBM and dispatch process of aircraft fleet is analyzed first, and the alternative strategy sets for single aircraft are given. Then, the optimization problem of fleet CBM with lower maintenance cost and dispatch risk is translated to the combinatorial optimization problem of single aircraft strategy. Remain useful life (RUL) distribution of the key line replaceable Module (LRM) has been transformed into the failure probability of the aircraft and the fleet health status matrix is established. And the calculation method of the costs and risks for mission based on health status matrix and maintenance matrix is given. Further, an optimization method for fleet dispatch and CBM under acceptable risk is proposed based on an improved genetic algorithm. Finally, a fleet of 10 aircrafts is studied to verify the proposed method. The results shows that it could realize optimization and control of the aircraft fleet oriented to mission success. PMID:24892046

Fleet Mix Planning in the U.S. Coast Guard: Issues and Challenges for DSS

DTIC Science & Technology

1991-10-28

Dean of Research REPORT DOCUMENTATION PAGE Wo,,Odo,,od Pui reprtig bLden fr * a co&3n o .r~in, i estimated to aeae 1 h=r per response REWki ft bus...or any 8er a . cmde d ft on ot fflornm idud gaiggms~c redcxng tuis burden. Io Wast wgon Head*ms Serviow ,e c. D fornirtomahon O m and Report...AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING AGENCY REPORT NUMBER Naval Postgraduate School Monterey, Ca 93943 N/ A 1 1. SUPPLEMENTARY NOTES

Application of Strategic Planning Process with Fleet Level Analysis Methods

NASA Technical Reports Server (NTRS)

Mavris, Dimitri N.; Pfaender, Holger; Jimenez, Hernando; Garcia, Elena; Feron, Eric; Bernardo, Jose

2016-01-01

The goal of this work is to quantify and characterize the potential system-wide reduction of fuel consumption and corresponding CO2 emissions, resulting from the introduction of N+2 aircraft technologies and concepts into the fleet. Although NASA goals for this timeframe are referenced against a large twin aisle aircraft we consider their application across all vehicle classes of the commercial aircraft fleet, from regional jets to very large aircraft. In this work the authors describe and discuss the formulation and implementation of the fleet assessment by addressing the main analytical components: forecasting, operations allocation, fleet retirement, fleet replacement, and environmental performance modeling.

Alternative Fuels Data Center

Science.gov Websites

Fuel-Efficient Green Fleets Policy and Fleet Management Program Development The Alabama Green Fleets Review Committee (Committee) established a Green Fleets Policy (Policy) outlining a procedure for managers must classify their vehicle inventory for compliance with the Policy and submit annual plans for

Evolution of the deep-sea fleet that supports Canada's international trade

DOT National Transportation Integrated Search

2002-01-01

This study identifies the flag-related trends of fleets used in Canada's international sea-borne trade relative to the world fleet during the 15-year period from 1985 to 1999. The goal is to determine if there is any indication that fleets that serve...

A Framework for Creating Value from Fleet Data at Ecosystem Level

NASA Astrophysics Data System (ADS)

Kinnunen, Sini-Kaisu; Hanski, Jyri; Marttonen-Arola, Salla; Kärri, Timo

2017-09-01

As companies have recently gotten more interested in utilizing the increasingly gathered data and realizing the potential of data analysis, the ability to upgrade data into value for business has been recognized as an advantage. Companies gain competitive advantage if they are able to benefit from the fleet data that is produced both in and outside the boundaries of the company. Benefits of fleet management are based on the possibility to have access to the massive amounts of asset data that can then be utilized e.g. to gain cost savings and to develop products and services. The ambition of the companies is to create value from fleet data but this requires that different actors in ecosystem are working together for a common goal - to get the most value out of fleet data for the ecosystem. In order that this could be possible, we need a framework to meet the requirements of the fleet life-cycle data utilization. This means that the different actors in the ecosystem need to understand their role in the fleet data refining process in order to promote the value creation from fleet data. The objective of this paper is to develop a framework for knowledge management in order to create value from fleet data in ecosystems. As a result, we present a conceptual framework which helps companies to develop their asset management practices related to the fleet of assets.

33 CFR 162.270 - Restricted areas in vicinity of Maritime Administration Reserve Fleets.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Maritime Administration Reserve Fleets. 162.270 Section 162.270 Navigation and Navigable Waters COAST GUARD... REGULATIONS § 162.270 Restricted areas in vicinity of Maritime Administration Reserve Fleets. (a) The... National Defense Reserve Fleets of the Maritime Administration, Department of Transportation: (1) James...

Alternative Fuels Data Center: Fleet Application for Public Transit

Science.gov Websites

Vehicles Public Transit Vehicles to someone by E-mail Share Alternative Fuels Data Center : Fleet Application for Public Transit Vehicles on Facebook Tweet about Alternative Fuels Data Center : Fleet Application for Public Transit Vehicles on Twitter Bookmark Alternative Fuels Data Center: Fleet

77 FR 14482 - Petroleum Reduction and Alternative Fuel Consumption Requirements for Federal Fleets

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-12

... agencies to use this methodology to determine fleet inventory targets and to prepare fleet management plans.... Department of Energy, Office of Energy Efficiency and Renewable Energy, Federal Energy Management Program (EE... DOE receives will be made available on the Federal Energy Management Program's Federal Fleet...

Alternative Fuels Data Center: Fleet Applications for Vehicles

Science.gov Websites

Applications for Vehicles to someone by E-mail Share Alternative Fuels Data Center: Fleet Applications for Vehicles on Facebook Tweet about Alternative Fuels Data Center: Fleet Applications for Vehicles on Twitter Bookmark Alternative Fuels Data Center: Fleet Applications for Vehicles on Google

41 CFR 101-39.208 - Vehicles removed from defined areas.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management System Services... operated outside the geographical area served by the issuing GSA IFMS fleet management center. However... shall notify the issuing GSA IFMS fleet management center of the following: (1) The location at which...

50 CFR 660.338 - Limited entry permits-small fleet.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Limited entry permits-small fleet. 660.338 Section 660.338 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND... Groundfish Fisheries § 660.338 Limited entry permits-small fleet. (a) Small limited entry fisheries fleets...

41 CFR 101-39.107 - Limited exemptions.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet... incorporated in the fleet management system, if the exemption has been mutually agreed upon by the... of the fleet management system. [51 FR 11023, Apr. 1, 1986, as amended at 56 FR 59888, Nov. 26, 1991] ...

41 CFR 101-39.204 - Obtaining motor vehicles for indefinite assignment.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management... related services of the GSA Interagency Fleet Management System (IFMS) are provided to requesting agencies... have been consolidated into the supporting GSA IFMS fleet management center, and no agency-owned...

48 CFR 970.5223-5 - DOE motor vehicle fleet fuel efficiency.

Code of Federal Regulations, 2010 CFR

2010-10-01

... and Contract Clauses for Management and Operating Contracts 970.5223-5 DOE motor vehicle fleet fuel..., insert the following clause in contracts providing for Contractor management of the motor vehicle fleet... 48 Federal Acquisition Regulations System 5 2010-10-01 2010-10-01 false DOE motor vehicle fleet...

The Advanced Surface Force Fleet: A Proposal for an Alternate Surface Force Structure and Its Impact in the Asian Pacific Theater

DTIC Science & Technology

2015-12-01

B. THE PROSPECTIVE 2040 7TH FLEET FORCES Based on the current and planned naval forces allocated to 7th Fleet, it is assumed that the Navy’s 2040...approximately 15 percent of The Advanced Surface Force Fleet, or 20 ships, are allocated to 7th Fleet. Furthermore, 12 of The Advanced Surface...production, personnel support for cleanup and recovery efforts, berthing capability, and medical support.90 After determining the critical missions

Alternative Fuels Data Center: Seattle Rideshare Fleet Adds EVs, Enjoys

Science.gov Websites

Fuels Data Center: Seattle Rideshare Fleet Adds EVs, Enjoys Success on Facebook Tweet about Alternative Fuels Data Center: Seattle Rideshare Fleet Adds EVs, Enjoys Success on Twitter Bookmark Alternative Fuels Data Center: Seattle Rideshare Fleet Adds EVs, Enjoys Success on Google Bookmark Alternative Fuels

41 CFR 101-39.105-1 - Transfers from discontinued or curtailed fleet management systems.

Code of Federal Regulations, 2010 CFR

2010-07-01

... discontinued or curtailed fleet management systems. 101-39.105-1 Section 101-39.105-1 Public Contracts and... AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.105-1 Transfers from...

Alternative Fuels Data Center: New Mexico Utility Sparks Change with Fleet

Science.gov Websites

Electrification New Mexico Utility Sparks Change with Fleet Electrification to someone by E -mail Share Alternative Fuels Data Center: New Mexico Utility Sparks Change with Fleet Electrification on Facebook Tweet about Alternative Fuels Data Center: New Mexico Utility Sparks Change with Fleet

75 FR 8563 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-25

...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA AGENCY: Coast Guard... Fleet Week Maritime Festival. Entry into, transit through, mooring, or anchoring within these zones is... Fleet Week Maritime Festival. This safety zone is necessary as these events have historically resulted...

75 FR 71638 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-24

...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA AGENCY: Coast Guard...) entitled ``Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliot Bay, Seattle, WA'' (Docket number...; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, Washington. (a) Location. The following...

Modelling the spatial behaviour of a tropical tuna purse seine fleet.

PubMed

Davies, Tim K; Mees, Chris C; Milner-Gulland, E J

2014-01-01

Industrial tuna fisheries operate in the Indian, Atlantic and Pacific Oceans, but concerns over sustainability and environmental impacts of these fisheries have resulted in increased scrutiny of how they are managed. An important but often overlooked factor in the success or failure of tuna fisheries management is the behaviour of fishers and fishing fleets. Uncertainty in how a fishing fleet will respond to management or other influences can be reduced by anticipating fleet behaviour, although to date there has been little research directed at understanding and anticipating the human dimension of tuna fisheries. The aim of this study was to address gaps in knowledge of the behaviour of tuna fleets, using the Indian Ocean tropical tuna purse seine fishery as a case study. We use statistical modelling to examine the factors that influence the spatial behaviour of the purse seine fleet at broad spatiotemporal scales. This analysis reveals very high consistency between years in the use of seasonal fishing grounds by the fleet, as well as a forcing influence of biophysical ocean conditions on the distribution of fishing effort. These findings suggest strong inertia in the spatial behaviour of the fleet, which has important implications for predicting the response of the fleet to natural events or management measures (e.g., spatial closures).

Impacts of compact growth and electric vehicles on future air quality and urban exposures may be mixed.

PubMed

Yu, Haofei; Stuart, Amy L

2017-01-15

'Smart' growth and electric vehicles are potential solutions to the negative impacts of worldwide urbanization on air pollution and health. However, the effects of planning strategies on distinct types of pollutants, and on human exposures, remain understudied. The goal of this work was to investigate the potential impacts of alternative urban designs for the area around Tampa, Florida USA, on emissions, ambient concentrations, and exposures to oxides of nitrogen (NO x ), 1,3-butadiene, and benzene. We studied three potential future scenarios: sprawling growth, compact growth, and 100% vehicle fleet electrification with compact growth. We projected emissions in the seven-county region to 2050 based on One Bay regional visioning plan data. We estimated pollutant concentrations in the county that contains Tampa using the CALPUFF dispersion model. We applied residential population projections to forecast acute (highest hour) and chronic (annual average) exposure. The compact scenario was projected to result in lower regional emissions of all pollutants than sprawl, with differences of -18%, -3%, and -14% for NO x , butadiene, and benzene, respectively. Within Hillsborough County, the compact form also had lower emissions, concentrations, and exposures than sprawl for NO x (-16%/-5% for acute/chronic exposures, respectively), but higher exposures for butadiene (+41%/+30%) and benzene (+21%/+9%). The addition of complete vehicle fleet electrification to the compact scenario mitigated these in-county increases for the latter pollutants, lowering predicted exposures to butadiene (-25%/-39%) and benzene (-5%/-19%), but also resulted in higher exposures to NO x (+81%/+30%) due to increased demand on power plants. These results suggest that compact forms may have mixed impacts on exposures and health. 'Smart' urban designs should consider multiple pollutants and the diverse mix of pollutant sources. Cleaner power generation will also likely be needed to support aggressive adoption of electric vehicles. Copyright © 2016 Elsevier B.V. All rights reserved.

Alternative Fuels Data Center: Golden Eagle Distributors Inc. to Convert

Science.gov Websites

several years. Golden Eagle will convert all fleet vehicles to CNG in their six branch operations Entire Fleet to CNG Golden Eagle Distributors Inc. to Convert Entire Fleet to CNG to someone by E-mail Share Alternative Fuels Data Center: Golden Eagle Distributors Inc. to Convert Entire Fleet

41 CFR 102-34.340 - Do we need a fleet management information system?

Code of Federal Regulations, 2010 CFR

2010-07-01

... management information system? 102-34.340 Section 102-34.340 Public Contracts and Property Management Federal... VEHICLE MANAGEMENT Federal Fleet Report § 102-34.340 Do we need a fleet management information system? Yes, you must have a fleet management information system at the department or agency level that — (a...

Alternative Fuels Data Center: New Hampshire Fleet Revs up With Natural Gas

Science.gov Websites

New Hampshire Fleet Revs up With Natural Gas to someone by E-mail Share Alternative Fuels Data Center: New Hampshire Fleet Revs up With Natural Gas on Facebook Tweet about Alternative Fuels Data Center: New Hampshire Fleet Revs up With Natural Gas on Twitter Bookmark Alternative Fuels Data Center

Alternative Fuels Data Center: District of Columbia's Government Fleet Uses

Science.gov Websites

a Wide Variety of Alternative FuelsA> District of Columbia's Government Fleet Uses a Wide Variety Government Fleet Uses a Wide Variety of Alternative Fuels on Facebook Tweet about Alternative Fuels Data Center: District of Columbia's Government Fleet Uses a Wide Variety of Alternative Fuels on Twitter

75 FR 20778 - Security Zone; Portland Rose Festival Fleet Week, Willamette River, Portland, OR

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-21

...-AA87 Security Zone; Portland Rose Festival Fleet Week, Willamette River, Portland, OR AGENCY: Coast... during the Portland Rose Festival Fleet Week from June 2, 2010, through June 7, 2010. The security zone... is a need to provide a security zone for the 2010 Portland Rose Festival Fleet Week, and there is...

76 FR 30014 - Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-24

...-AA00 Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA AGENCY: Coast Guard...) entitled ``Safety Zone; Fleet Week Maritime Festival, Pier 66, Elliott Bay, Seattle, WA'' in the Federal... is added to read as follows: Sec. 165.1330 Safety Zone; Fleet Week Maritime Festival, Pier 66...

41 CFR 102-34.340 - Do we need a fleet management information system?

Code of Federal Regulations, 2011 CFR

2011-01-01

... management information system? 102-34.340 Section 102-34.340 Public Contracts and Property Management Federal... VEHICLE MANAGEMENT Federal Fleet Report § 102-34.340 Do we need a fleet management information system? Yes, you must have a fleet management information system at the department or agency level that — (a...

41 CFR 102-34.340 - Do we need a fleet management information system?

Code of Federal Regulations, 2013 CFR

2013-07-01

... management information system? 102-34.340 Section 102-34.340 Public Contracts and Property Management Federal... VEHICLE MANAGEMENT Federal Fleet Report § 102-34.340 Do we need a fleet management information system? Yes, you must have a fleet management information system at the department or agency level that — (a...

41 CFR 102-34.340 - Do we need a fleet management information system?

Code of Federal Regulations, 2012 CFR

2012-01-01

... management information system? 102-34.340 Section 102-34.340 Public Contracts and Property Management Federal... VEHICLE MANAGEMENT Federal Fleet Report § 102-34.340 Do we need a fleet management information system? Yes, you must have a fleet management information system at the department or agency level that — (a...

41 CFR 102-34.340 - Do we need a fleet management information system?

Code of Federal Regulations, 2014 CFR

2014-01-01

... management information system? 102-34.340 Section 102-34.340 Public Contracts and Property Management Federal... VEHICLE MANAGEMENT Federal Fleet Report § 102-34.340 Do we need a fleet management information system? Yes, you must have a fleet management information system at the department or agency level that — (a...

77 FR 75257 - Proposed Collection of Information: Medium- and Heavy-Duty Truck Fleet Survey

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-19

...-0170] Proposed Collection of Information: Medium- and Heavy-Duty Truck Fleet Survey AGENCY: National... collection of information will be in the form of a one-time survey of medium- and heavy-duty truck fleet... collection. OMB Control Number: To be issued at time of approval. Title: Medium- and Heavy-Duty Truck Fleet...

Assessment and Correlation of Customer and Rater Response to Cold-Start and Warmup Driveability

DTIC Science & Technology

1993-08-01

Customer satisfaction fleet Year N % 1986 13 18 1988 10 14 1987 12 18 1988 12 16 1989 14 19 1990 9 12 1991 3 4 Consumer I Rater Fleet Hydrocarbon fuel...2 4 1991 0 0 Fuel system * Customer satisfaction fleet Fuel system N % Carbureted 19 26 PFI 33 48 1T1 21 29 Consumer I Rater Fleet Hydrooarbon fuel...between the customer fleet and one of the consumer /rater subfleets; these vehicles are included in both places in the tables above. 30 TABLE 2 AVERAGE

Developing a Fleet Standardization Index for Airline Planning

NASA Technical Reports Server (NTRS)

deBorgesPan, Alexis George; EspiritoSanto, Respicio A., Jr.

2003-01-01

Quantifying subjective aspects is a difficult task that requires a great dedication of time from researchers and analysts. Nevertheless, one of the main objectives of it is to pave the way for a better understanding of the focused aspects. Fleet standardization is one of these subjective aspects that is extremely difficult to mm into numbers. Although, it is of great importance to know the benefits that may come with a higher level of standardization for airlines, which may be economical advantages, maintenance facilitation and others. A more standardized fleet may represent lower costs of operations and maintenance facilitation and others. A more standardized fleet may represent lower costs of operations and maintenance plus a much better planning of routes and flights. This study presents the first step on developing an index, hereto called "Fleet Standardization Index" or FSI (or IPF in Portuguese, for "Indice de Padronizacao de Frotas"), that will allow senior airline planners to compare different fleets and also simulate some results from maintaining or renewing their fleets. Although being a preliminary study, the results obtained may already be tested to compare different fleets (different airlines) and also analyze some possible impacts of a fleet renewal before it takes place. Therefore, the main objective of this paper is to introduce the proposed IPF index and to demonstrate that it is inversely proportional to the number of different airplane models, engines and other equipment, such as avionics.

Long-Term Fuel-Specific NO x and Particle Emission Trends for In-Use Heavy-Duty Vehicles in California.

PubMed

Haugen, Molly J; Bishop, Gary A

2018-05-15

Two California heavy-duty fleets have been measured in 2013, 2015, and 2017 using the On-Road Heavy-Duty Measurement System. The Port of Los Angeles drayage fleet has increased in age by 3.3 model years (4.2-7.5 years old) since 2013, with little fleet turnover. Large increases in fuel-specific particle emissions (PM) observed in 2015 were reversed in 2017, returning to near 2013 levels, suggesting repairs and or removal of high emitting vehicles. Fuel-specific oxides of nitrogen (NO x ) emissions of this fleet have increased, and NO x after-treatment systems do not appear to perform ideally in this setting. At the Cottonwood weigh station in northern California, the fleet age has declined (7.8 to 6 years old) since 2013 due to fleet turnover, significantly lowering the average fuel-specific emissions for PM (-87%), black carbon (-76%), and particle number (-64%). Installations of retrofit-diesel particulate filters in model year 2007 and older vehicles have further decreased particle emissions. Cottonwood fleet fuel-specific NO x emissions have decreased slightly (-8%) during this period; however, newer technology vehicles with selective catalytic reduction systems (SCR) promise an additional factor of 4-5 further reductions in the long-haul fleet emissions as California transitions to an all SCR-equipped fleet.

Alternative Fuels Data Center: Kansas City Greens Its Fleet With Natural

Science.gov Websites

Gas and Biodiesel Kansas City Greens Its Fleet With Natural Gas and Biodiesel to someone by E -mail Share Alternative Fuels Data Center: Kansas City Greens Its Fleet With Natural Gas and Biodiesel and Biodiesel on Twitter Bookmark Alternative Fuels Data Center: Kansas City Greens Its Fleet With

Pages - U.S. Fleet Cyber Command

Science.gov Websites

Links Expand Links : U.S. Fleet Cyber Command Help (new window) Site Help Page Content Website 2nd Banner.jpg Since its establishment on Jan. 29, 2010, U.S. Fleet Cyber Command (FCC)/U.S. TENTH Fleet (C10F civilians organized into 26 active commands, 40 Cyber Mission Force units, and 27 reserve commands around

40 CFR 88.305-94 - Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 21 2012-07-01 2012-07-01 false Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles. 88.305-94 Section 88.305-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CLEAN-FUEL VEHICLES Clean-Fuel Fleet Program § 88.305-94 Clean-fuel fleet vehicle labeling...

40 CFR 88.305-94 - Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 21 2013-07-01 2013-07-01 false Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles. 88.305-94 Section 88.305-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CLEAN-FUEL VEHICLES Clean-Fuel Fleet Program § 88.305-94 Clean-fuel fleet vehicle labeling...

40 CFR 88.305-94 - Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 20 2014-07-01 2013-07-01 true Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles. 88.305-94 Section 88.305-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CLEAN-FUEL VEHICLES Clean-Fuel Fleet Program § 88.305-94 Clean-fuel fleet vehicle labeling...

40 CFR 88.305-94 - Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 20 2011-07-01 2011-07-01 false Clean-fuel fleet vehicle labeling requirements for heavy-duty vehicles. 88.305-94 Section 88.305-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CLEAN-FUEL VEHICLES Clean-Fuel Fleet Program § 88.305-94 Clean-fuel fleet vehicle labeling...

DOE Office of Scientific and Technical Information (OSTI.GOV)

The U.S. Department of Energy (DOE) and U.S. General Services Administration (GSA) are issuing comprehensive guidance on the federal fleet requirements of Executive Order (E.O.) 13693, Planning for Federal Sustainability in the Next Decade (E.O. 13693), to help federal agencies subject to the executive order develop an overall approach for reducing total fleet greenhouse gas (GHG) emissions and fleet-wide per-mile GHG emissions, and ensure the approach helps these agencies meet their requirements. Three key GHG emissions reduction strategies - right-sizing fleets to mission, increasing fleet fuel efficiency, and displacing petroleum with alternative fuel use - are essential to meeting themore » requirements and are discussed further in this document. This guidance document is intended to help agency Chief Sustainability Officers (CSOs) and headquarters fleet managers craft tailored executable plans that achieve the purpose of E.O. 13693. The guidance will assist agencies in completing the first phase of a comprehensive fleet management framework by identifying the strategies each agency will then implement to meet or exceed its requirements.« less

40 CFR 86.1710-99 - Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and...

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 20 2012-07-01 2012-07-01 false Fleet average non-methane organic gas....1710-99 Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and... follows: Table R99-15—Fleet Average Non-Methane Organic Gas Standards (g/mi) for Light-Duty Vehicles and...

40 CFR 86.1710-99 - Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and...

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 19 2011-07-01 2011-07-01 false Fleet average non-methane organic gas....1710-99 Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and... follows: Table R99-15—Fleet Average Non-Methane Organic Gas Standards (g/mi) for Light-Duty Vehicles and...

40 CFR 86.1710-99 - Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and...

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 20 2013-07-01 2013-07-01 false Fleet average non-methane organic gas....1710-99 Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and... follows: Table R99-15—Fleet Average Non-Methane Organic Gas Standards (g/mi) for Light-Duty Vehicles and...

75 FR 34927 - Safety Zone; Parade of Ships, Seattle SeaFair Fleet Week, Pier 66, Elliott Bay, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-21

...-AA00 Safety Zone; Parade of Ships, Seattle SeaFair Fleet Week, Pier 66, Elliott Bay, WA AGENCY: Coast... Seattle SeaFair Fleet Week. This action is intended to restrict vessel traffic movement and entry into... of Ships for the annual Seattle SeaFair Fleet Week. For the purposes of this rule the Parade of Ships...

Alternative Fuels Data Center: Ozinga Adds 14 Natural Gas Concrete Mixers

Science.gov Websites

to Its Fleet Ozinga Adds 14 Natural Gas Concrete Mixers to Its Fleet to someone by E-mail Share Alternative Fuels Data Center: Ozinga Adds 14 Natural Gas Concrete Mixers to Its Fleet on Facebook Tweet about Alternative Fuels Data Center: Ozinga Adds 14 Natural Gas Concrete Mixers to Its Fleet on Twitter Bookmark

40 CFR 86.1710-99 - Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 19 2010-07-01 2010-07-01 false Fleet average non-methane organic gas....1710-99 Fleet average non-methane organic gas exhaust emission standards for light-duty vehicles and... follows: Table R99-15—Fleet Average Non-Methane Organic Gas Standards (g/mi) for Light-Duty Vehicles and...

Fleet logistics system : data administration plans and procedures manual

DOT National Transportation Integrated Search

1996-01-23

This manual provides data administration (DA) procedures for developers and maintainers of Coast Guard fleet logistics information systems. Fleet logistics includes a community of supply, logistics, maintenance, and shipboard functions. The informati...

A global renewable mix with proven technologies and common materials

NASA Astrophysics Data System (ADS)

Ballabrera, J.; Garcia-Olivares, A.; Garcia-Ladona, E.; Turiel, A.

2012-04-01

A global alternative mix to fossil fuels is proposed, based on proven renewable energy technologies that do not use scarce materials. Taking into account the availability of materials, the resulting mix consists of a combination of onshore and offshore wind turbines, concentrating solar power stations, hydroelectricity and wave power devices attached to the offshore turbines. Solar photovoltaic power could contribute to the mix if its dependence on scarce materials is solved. Material requirements are studied for the generation, power transport and for some future transport systems. The order of magnitude of copper, aluminium, neodymium, lithium, nickel, zinc and platinum that might be required for the proposed solution is obtained and compared with available reserves. While the proposed global alternative to fossil fuels seems technically feasible, lithium, nickel and platinum could become limiting materials for future vehicles fleet if no global recycling system were implemented and rechargeable zinc-air batteries could not be developed. As much as 60% of the current copper reserves would have to be employed in the implementation of the proposed solution. Altogether, the availability of materials may become a long-term physical constraint, preventing the continuation of the usual exponential growth of energy consumption.

Transportation systems analyses. Volume 2: Technical/programmatics

NASA Astrophysics Data System (ADS)

1993-05-01

The principal objective of this study is to accomplish a systems engineering assessment of the nation's space transportation infrastructure. This analysis addresses the necessary elements to perform man delivery and return, cargo transfer, cargo delivery, payload servicing, and the exploration of the Moon and Mars. Specific elements analyzed, but not limited to, include the Space Exploration Initiative (SEI), the National Launch System (NLS), the current expendable launch vehicle (ELV) fleet, ground facilities, the Space Station Freedom (SSF), and other civil, military and commercial payloads. The performance of this study entails maintaining a broad perspective on the large number of transportation elements that could potentially comprise the U.S. space infrastructure over the next several decades. To perform this systems evaluation, top-level trade studies are conducted to enhance our understanding of the relationships between elements of the infrastructure. This broad 'infrastructure-level perspective' permits the identification of preferred infrastructures. Sensitivity analyses are performed to assure the credibility and usefulness of study results. This report documents the three principal transportation systems analyses (TSA) efforts during the period 7 November 92 - 6 May 93. The analyses are as follows: Mixed-Fleet (STS/ELV) strategies for SSF resupply; Transportation Systems Data Book - overview; and Operations Cost Model - overview/introduction.

Exact and Metaheuristic Approaches for a Bi-Objective School Bus Scheduling Problem

PubMed Central

Chen, Xiaopan; Kong, Yunfeng; Dang, Lanxue; Hou, Yane; Ye, Xinyue

2015-01-01

As a class of hard combinatorial optimization problems, the school bus routing problem has received considerable attention in the last decades. For a multi-school system, given the bus trips for each school, the school bus scheduling problem aims at optimizing bus schedules to serve all the trips within the school time windows. In this paper, we propose two approaches for solving the bi-objective school bus scheduling problem: an exact method of mixed integer programming (MIP) and a metaheuristic method which combines simulated annealing with local search. We develop MIP formulations for homogenous and heterogeneous fleet problems respectively and solve the models by MIP solver CPLEX. The bus type-based formulation for heterogeneous fleet problem reduces the model complexity in terms of the number of decision variables and constraints. The metaheuristic method is a two-stage framework for minimizing the number of buses to be used as well as the total travel distance of buses. We evaluate the proposed MIP and the metaheuristic method on two benchmark datasets, showing that on both instances, our metaheuristic method significantly outperforms the respective state-of-the-art methods. PMID:26176764

Conventional, Hybrid, or Electric Vehicles: Which Technology for an Urban Distribution Centre?

PubMed Central

Lebeau, Philippe; De Cauwer, Cedric; Macharis, Cathy; Verbeke, Wouter; Coosemans, Thierry

2015-01-01

Freight transport has an important impact on urban welfare. It is estimated to be responsible for 25% of CO2 emissions and up to 50% of particles matters generated by the transport sector in cities. Facing that problem, the European Commission set the objective of reaching free CO2 city logistics by 2030 in major urban areas. In order to achieve this goal, electric vehicles could be an important part of the solution. However, this technology still faces a number of barriers, in particular high purchase costs and limited driving range. This paper explores the possible integration of electric vehicles in urban logistics operations. In order to answer this research question, the authors have developed a fleet size and mix vehicle routing problem with time windows for electric vehicles. In particular, an energy consumption model is integrated in order to consider variable range of electric vehicles. Based on generated instances, the authors analyse different sets of vehicles in terms of vehicle class (quadricycles, small vans, large vans, and trucks) and vehicle technology (petrol, hybrid, diesel, and electric vehicles). Results show that a fleet with different technologies has the opportunity of reducing costs of the last mile. PMID:26236769

Conventional, Hybrid, or Electric Vehicles: Which Technology for an Urban Distribution Centre?

PubMed

Lebeau, Philippe; De Cauwer, Cedric; Van Mierlo, Joeri; Macharis, Cathy; Verbeke, Wouter; Coosemans, Thierry

2015-01-01

Freight transport has an important impact on urban welfare. It is estimated to be responsible for 25% of CO2 emissions and up to 50% of particles matters generated by the transport sector in cities. Facing that problem, the European Commission set the objective of reaching free CO2 city logistics by 2030 in major urban areas. In order to achieve this goal, electric vehicles could be an important part of the solution. However, this technology still faces a number of barriers, in particular high purchase costs and limited driving range. This paper explores the possible integration of electric vehicles in urban logistics operations. In order to answer this research question, the authors have developed a fleet size and mix vehicle routing problem with time windows for electric vehicles. In particular, an energy consumption model is integrated in order to consider variable range of electric vehicles. Based on generated instances, the authors analyse different sets of vehicles in terms of vehicle class (quadricycles, small vans, large vans, and trucks) and vehicle technology (petrol, hybrid, diesel, and electric vehicles). Results show that a fleet with different technologies has the opportunity of reducing costs of the last mile.

Airport-Based Alternative Fuel Vehicle Fleets

DOT National Transportation Integrated Search

2001-01-01

Airports represent attractive opportunities for the expanded use of alternative fuel vehicles (AFVs). They are commonly served by dozens of fleets operating thousands of vehicles. These fleets include both ground service equipment such as tugs, tows,...

Fleet equipment performance measure preventive maintenance model.

DOT National Transportation Integrated Search

2013-02-28

The Texas Department of Transportation : (TxDOT) operates a large fleet of on-road and : off-road equipment. Consequently, fleet : maintenance procedures (specifically preventive : maintenance such as oil changes) represent a : significant cost to th...

41 CFR 109-39.107 - Limited exemptions.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.107 Limited exemptions. The Director, Office of... exemptions from the fleet management system. ...

Optimized deployment of emission reduction technologies for large fleets.

DOT National Transportation Integrated Search

2011-06-01

This research study produced an optimization framework for determining the most efficient emission : reduction strategies among vehicles and equipment in a large fleet. The Texas Department of : Transportations (TxDOTs) fleet data were utilized...

CleanFleet final report. Volume 7, vehicle emissions

DOT National Transportation Integrated Search

1995-12-01

CleanFleet, formally known as the South Coast Alternative Fuels Demonstration, : was a comprehensive demonstration of alternative fuel vehicles (AFVs) in daily : commercial service. Measurements of exhaust and evaporative emissions from CleanFleet va...

Clean Cities case study : Barwood Cab Fleet study summary

DOT National Transportation Integrated Search

1999-05-21

Barwood Cab Fleet Study Summary is the second in a new series called 'Alternative Fuel Information Case Studies', designed to present real-world experiences with alternative fuels to fleet managers and other industry stakeholders.

41 CFR 101-39.100 - General.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management... fleet management systems. (a) Based on these studies, the Administrator of General Services, with the...

Telematics Framework for Federal Agencies: Lessons from the Marine Corps Fleet

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hodge, Cabell; Singer, Mark R.

Executive Order 13693 requires federal agencies to acquire telematics for their light- and medium-duty vehicles as appropriate. This report is intended to help agencies that are deploying telematics systems and seeking to integrate them into their fleet management process. It provides an overview of telematics capabilities, lessons learned from the deployment of telematics in the Marine Corps fleet, and recommendations for federal fleet managers to maximize value from telematics.

Fleet equipment performance measurement preventive maintenance model : final report.

DOT National Transportation Integrated Search

2014-04-01

The concept of preventive maintenance is very important in the effective management and deployment of : vehicle fleets. The Texas Department of Transportation (TxDOT) operates a large fleet of on-road and offroad : equipment. Newer engines and vehicl...

41 CFR 101-39.001 - Authority.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET... establishing fleet management systems to serve the needs of executive agencies; and (b) provide for the establishment, maintenance, and operation (including servicing and storage) of fleet management systems for...

Ohio's first ethanol-fueled light-duty fleet

DOT National Transportation Integrated Search

1998-12-31

In 1996, the State of Ohio established a : project to demonstrate the effectiveness of : ethanol as an alternative to gasoline in : fleet operations. The state purchased and : incorporated a number of flexible-fuel : vehicles (FFVs) into its fleet. F...

Mitsubishi iMiEV: An Electric Mini-Car in NREL's Advanced Technology Vehicle Fleet (Fact Sheet)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

This fact sheet highlights the Mitsubishi iMiEV, an electric mini-car in the advanced technology vehicle fleet at the National Renewable Energy Laboratory (NREL). In support of the U.S. Department of Energy's fast-charging research efforts, NREL engineers are conducting charge and discharge performance testing on the vehicle. NREL's advanced technology vehicle fleet features promising technologies to increase efficiency and reduce emissions without sacrificing safety or comfort. The fleet serves as a technology showcase, helping visitors learn about innovative vehicles that are available today or are in development. Vehicles in the fleet are representative of current, advanced, prototype, and emerging technologies.

DOE Office of Scientific and Technical Information (OSTI.GOV)

None, None

Document contains guidance on the federal fleet requirements of Executive Order 13693: Planning for Federal Sustainability in the Next Decade and helps federal agencies subject to the executive order develop an overall approach for reducing total fleet greenhouse gas (GHG) emissions and fleet-wide per-mile GHG emissions.

Municipal Fleet Vehicle Electrification and Photovoltaic Power In the City of Pittsburgh.

DOT National Transportation Integrated Search

2016-01-01

This document reports the results of a cost benefit analysis on potential photovoltaic projects : in Pittsburgh and electrifying the citys light duty civilian vehicle fleet. Currently the : city of Pittsburgh has a civilian passenger vehicle fleet...

The Retrofit Puzzle Extended: Optimal Fleet Owner Behavior over Multiple Time Periods

DOT National Transportation Integrated Search

2009-08-04

In "The Retrofit Puzzle: Optimal Fleet Owner Behavior in the Context of Diesel Retrofit Incentive Programs" (1) an integer program was developed to model profit-maximizing diesel fleet owner behavior when selecting pollution reduction retrofits. Flee...

48 CFR 51.201 - Policy.

Code of Federal Regulations, 2010 CFR

2010-10-01

... GOVERNMENT SOURCES BY CONTRACTORS Contractor Use of Interagency Fleet Management System (IFMS) 51.201 Policy... contractors to obtain, for official purposes only, interagency fleet management system (IFMS) vehicles and... instance. (c) Government contractors shall not be authorized to obtain interagency fleet management system...

41 CFR 101-39.003 - Financing.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET..., and operation of fleet management systems. (b) When an agency other than GSA operates an interagency fleet management system, the financing and accounting methods shall be developed by GSA in cooperation...

CleanFleet final report. Volume 2, project design and implementation

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The project evaluated five alternative motor fuels in commercial fleet service over a two-year period. T...

Reserve fleet manual [3rd ed., 1st rev.

DOT National Transportation Integrated Search

2003-03-17

The purpose of this document is to provide policy to the Regional Headquarters regarding vessel maintenance in the National Defense Reserve Fleet anchorages (fleet sites). This policy is for the acceptance of ships into, the maintenance of ships in, ...

High-Mileage Light-Duty Fleet Vehicle Emissions: Their Potentially Overlooked Importance.

PubMed

Bishop, Gary A; Stedman, Donald H; Burgard, Daniel A; Atkinson, Oscar

2016-05-17

State and local agencies in the United States use activity-based computer models to estimate mobile source emissions for inventories. These models generally assume that vehicle activity levels are uniform across all of the vehicle emission level classifications using the same age-adjusted travel fractions. Recent fuel-specific emission measurements from the SeaTac Airport, Los Angeles, and multi-year measurements in the Chicago area suggest that some high-mileage fleets are responsible for a disproportionate share of the fleet's emissions. Hybrid taxis at the airport show large increases in carbon monoxide, hydrocarbon, and oxide of nitrogen emissions in their fourth year when compared to similar vehicles from the general population. Ammonia emissions from the airport shuttle vans indicate that catalyst reduction capability begins to wane after 5-6 years, 3 times faster than is observed in the general population, indicating accelerated aging. In Chicago, the observed, on-road taxi fleet also had significantly higher emissions and an emissions share that was more than double their fleet representation. When compounded by their expected higher than average mileage accumulation, we estimate that these small fleets (<1% of total) may be overlooked as a significant emission source (>2-5% of fleet emissions).

41 CFR 101-39.300 - General.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.3-Use and Care of GSA Interagency Fleet Management System Vehicles § 101-39.300 General. (a) The objective of the General Services Administration (GSA) Interagency Fleet Management System...

41 CFR 101-39.302 - Rotation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.3-Use and Care of GSA Interagency Fleet Management System Vehicles § 101-39.302 Rotation. GSA Interagency Fleet Management System (IFMS) vehicles on high mileage assignments may be...

41 CFR 109-39.103 - Agency appeals.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.103 Agency appeals. The Director, Office of... request exemption from, a determination made by GSA concerning the establishment of a fleet management...

48 CFR 51.203 - Means of obtaining service.

Code of Federal Regulations, 2010 CFR

2010-10-01

... MANAGEMENT USE OF GOVERNMENT SOURCES BY CONTRACTORS Contractor Use of Interagency Fleet Management System... interagency fleet management system (IFMS) vehicles and related services in writing to the appropriate GSA regional Federal Supply Service Bureau, Attention: Regional fleet manager, except that requests for more...

41 CFR 101-39.403 - Investigation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET... Interagency Fleet Management System (IFMS) vehicle shall be investigated and a report furnished to the manager of the GSA IFMS fleet management center which issued the vehicle. (b) The agency employing the...

48 CFR 51.205 - Contract clause.

Code of Federal Regulations, 2010 CFR

2010-10-01

... USE OF GOVERNMENT SOURCES BY CONTRACTORS Contractor Use of Interagency Fleet Management System (IFMS... Fleet Management System (IFMS) Vehicles and Related Services, in solicitations and contracts when a cost... interagency fleet management system (IFMS) vehicles and related services. [48 FR 42476, Sept. 19, 1983, as...

A Manpower Comparison of Three U.S. Navies: The Current Fleet, a Projected 313 Ship Fleet, and a More Distributed Bimodal Alternative

DTIC Science & Technology

2009-09-01

Large, Medium-speed, Roll-on/Roll-off Ships T- AKR ,” 2009) The ships can support humanitarian missions as well. LMSRs normally have a crew size of 26...NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS Approved for public release; distribution is unlimited A MANPOWER...COMPARISON OF THREE U. S. NAVIES: THE CURRENT FLEET, A PROJECTED 313 SHIP FLEET, AND A MORE DISTRIBUTED BIMODAL ALTERNATIVE by Juan L. Carrasco

Electric vehicles look promising for use in utility fleets

DOE Office of Scientific and Technical Information (OSTI.GOV)

Minner, D.

1984-06-01

The Electric Vehicle Development Corp. (EVDV) expects EV fleets to find a market for urban driving, especially among service fleets, once mass production begins. Electric utilities joined to form EVDC in order to keep abreast of research developments and the results of demonstrations taking place in several cities, where driver acceptance in utility demonstration programs is high. Major auto makers still need persuasion to develop a commercial prototype. Marketing will focus on controlled fleets having the management skills and the motivation to make the program work.

Navy Force Structure: A Bigger Fleet Background and Issues for Congress

DTIC Science & Technology

2016-10-20

20, 2016; Hope Hodge Seck, “Overtaxed Fleet Needs Shorter Deployments,” Military.com, March 19, 2016; David Larter, “Carrier Scramble: CENTCOM, PACOM...example, Hope Hodge Seck, “CNO: Navy to Hit Seven-Month Deployments by End of Year,” Military.com, February 12, 2016; Chris Church, “Analysts: Truman...Will Harm the Fleet,” Navy Times, April 20, 2016; Hope Hodge Seck, “Overtaxed Fleet Needs Shorer Deployments,” Military.com, March 19, 2016; Bryan

Toyota Prius Plug-In HEV: A Plug-In Hybrid Electric Car in NREL's Advanced Technology Vehicle Fleet (Fact Sheet)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

This fact sheet highlights the Toyota Prius plug-in HEV, a plug-in hybrid electric car in the advanced technology vehicle fleet at the National Renewable Energy Laboratory (NREL). In partnership with the University of Colorado, NREL uses the vehicle for grid-integration studies and for testing new hardware and charge-management algorithms. NREL's advanced technology vehicle fleet features promising technologies to increase efficiency and reduce emissions without sacrificing safety or comfort. The fleet serves as a technology showcase, helping visitors learn about innovative vehicles that are available today or are in development. Vehicles in the fleet are representative of current, advanced, prototype, andmore » emerging technologies.« less

Plug-In Electric Vehicle Handbook for Fleet Managers (Brochure)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2012-04-01

Plug-in electric vehicles (PEVs) are entering the automobile market and are viable alternatives to conventional vehicles. This guide for fleet managers describes the basics of PEV technology, PEV benefits for fleets, how to select the right PEV, charging a PEV, and PEV maintenance.

48 CFR 970.2307-1 - Motor vehicle fleet operations.

Code of Federal Regulations, 2010 CFR

2010-10-01

... SUPPLEMENTARY REGULATIONS DOE MANAGEMENT AND OPERATING CONTRACTS Environment, Energy and Water Efficiency... that the Federal motor vehicle fleet will serve as an example and provide a leadership role in the... management contracts which include Federal motor vehicle fleet operations. Section 506 of Executive Order...

Telematics Options and Capabilities

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hodge, Cabell

This presentation describes the data tracking and analytical capabilities of telematics devices. Federal fleet managers can use the systems to keep their drivers safe, maintain a fuel efficient fleet, ease their reporting burden, and save money. The presentation includes an example of how much these capabilities can save fleets.

41 CFR 101-39.104-1 - Consolidations into a fleet management system.

Code of Federal Regulations, 2011 CFR

2011-07-01

... fleet management system. 101-39.104-1 Section 101-39.104-1 Public Contracts and Property Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and...

Commercial vehicle fleet management and information systems. Technical memorandum 2 : summary of case study interviews

DOT National Transportation Integrated Search

1997-10-01

The FHWA has commissioned the Commercial Vehicle Fleet Management and Information Systems study to determine if there are fleet management needs that the public sector can address through the development of ITS for commercial vehicle operations. As p...

41 CFR 101-39.105-2 - Agency requests to withdraw participation.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.105-2 Agency requests to withdraw participation. (a) Executive agencies receiving motor vehicle services from fleet management systems may request...

41 CFR 109-39.106 - Unlimited exemptions.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.106 Unlimited exemptions. The Director, Office of... determination that an unlimited exemption from inclusion of a motor vehicle in a fleet management system is...

Alternative Fuels Data Center: Tools

Science.gov Websites

Calculator Compare cost of ownership and emissions for most vehicle models. mobile Petroleum Reduction ROI and payback period for natural gas vehicles and infrastructure. AFLEET Tool Calculate a fleet's , hydrogen, or fuel cell infrastructure. GREET Fleet Footprint Calculator Calculate your fleet's petroleum

Fleet Feedback and Fleet Efficiency Metrics

DOE Office of Scientific and Technical Information (OSTI.GOV)

Singer, Mark R

The Marine Corps have 10 years of experience implementing a telematics program and several lessons to share with partner agencies. This presentation details results of a Marine Corps survey as well as methods of using telematics to promote fleet efficiency and optimize the vehicle acquisition process.

Tug fleet and ground operations schedules and controls. Volume 1: Executive summary

NASA Technical Reports Server (NTRS)

1975-01-01

This study presents Tug Fleet and Ground Operations Schedules and Controls plan. This plan was developed and optimized out of a combination of individual Tug program phased subplans, special emphasis studies, contingency analyses and sensitivity analyses. The subplans cover the Tug program phases: (1) Tug operational, (2) Interim Upper Stage (IUS)/Tug fleet utilization, (3) and IUS/Tug payload integration, (4) Tug site activation, (5) IUS/Tug transition, (6) Tug acquisition. Resource requirements (facility, GSE, TSE, software, manpower, logistics) are provided in each subplan, as are appropriate Tug processing flows, active and total IUS and Tug fleet requirements, fleet management and Tug payload integration concepts, facility selection recommendations, site activation and IUS to Tug transition requirements. The impact of operational concepts on Tug acquisition is assessed and the impact of operating Tugs out of KSC and WTR is analyzed and presented showing WTR as a delta. Finally, cost estimates for fleet management and ground operations of the DDT&E and operational phases of the Tug program are given.

Game Theory in Fleet Management

NASA Astrophysics Data System (ADS)

Dulai, Tibor; Jaskó, Szilárd; Muhi, Dániel

2008-11-01

In this survey we attempt to apply the results of cooperative game theory on fleet management problems. We deal with the aspect of a fleet where the members have their own goal, however the fleet has a common purpose too. These goals are to reach all destinations and get back to the center as quickly as possible. If we draw the map of the area-which contains the destination points and their environment-as a graph, we should determinate circles in it for each member of the fleet. Separating the nodes for each member, we should find Hamilton-circles of the sub-graphs. How to separate the destination points between the fleet members? How to route the members? What happens if there is an accident on a road which changes the way of a member? It may influence the other members' route too. What to communicate for getting the relevant information? How to change the routes in real time? We use cooperative game theory to find the solution.

Clean Cities Plug-In Electric Vehicle Handbook for Fleet Managers

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

2012-04-01

Plug-in electric vehicles (PEVs) are entering the automobile market and are viable alternatives to conventional vehicles. This guide for fleet managers describes the basics of PEV technology, PEV benefits for fleets, how to select the right PEV, charging a PEV, and PEV maintenance.

Alternative Fuels Data Center

Science.gov Websites

advanced lean burn vehicles. Fleets that use fuel blends containing at least 20% biodiesel (B20) may earn Energy Independence and Security Act of 2007, including fleet management plan requirements (Section 142 infrastructure installation requirements (Section 246). For more information, see the Federal Fleet Management

41 CFR 101-39.105 - Discontinuance or curtailment of service.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.105 Discontinuance or curtailment of service. (a... efficiencies are realized from the operation of any fleet management system, the Administrator, GSA, will...

41 CFR 109-39.101-1 - Agency cooperation.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.101-1 Agency cooperation. The Director, Office of... representatives to coordinate with GSA concerning the establishment of a GSA fleet management system to serve...

41 CFR 109-39.105-2 - Agency requests to withdraw participation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.105-2 Agency requests to... of participation by a DOE organization of a given interagency fleet management system, the...

48 CFR 251.205 - Contract clause.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Fleet Management System (IFMS) Vehicles 251.205 Contract clause. Use the clause at 252.251-7001, Use of Interagency Fleet Management System (IFMS)Vehicles and Related Services, in solicitations and contracts which include the clause at FAR 52.251-2, Interagency Fleet Management System (IFMS) Vehicles and Related...

41 CFR 101-39.201 - Services available.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management System Services § 101-39.201 Services available. GSA Interagency Fleet Management System (IFMS) vehicles and services shall be used in... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Services available. 101...

49 CFR 531.5 - Fuel economy standards.

Code of Federal Regulations, 2014 CFR

2014-10-01

... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PASSENGER AUTOMOBILE AVERAGE FUEL ECONOMY STANDARDS § 531.5 Fuel... automobiles shall comply with the fleet average fuel economy standards in Table I, expressed in miles per... passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model...

49 CFR 531.5 - Fuel economy standards.

Code of Federal Regulations, 2013 CFR

2013-10-01

... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PASSENGER AUTOMOBILE AVERAGE FUEL ECONOMY STANDARDS § 531.5 Fuel... automobiles shall comply with the fleet average fuel economy standards in Table I, expressed in miles per... passenger automobile fleet shall comply with the fleet average fuel economy level calculated for that model...

Alternative Fuels Data Center

Science.gov Websites

Fleet Grants The Texas Commission on Environmental Quality (TCEQ) administers the Texas Clean Fleet Program (TCFP) as part of the Texas Emissions Reduction Plan (TERP). TCFP encourages owners of fleets current application periods, see the TCEQ TERP website. (Reference Senate Bill 1731, 2017, Texas Statutes

41 CFR 101-39.104 - Notice of establishment of a fleet management system.

Code of Federal Regulations, 2014 CFR

2014-07-01

... management system in order to work out any problems pertaining to establishing and operating fleet management... of a fleet management system. 101-39.104 Section 101-39.104 Public Contracts and Property Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION...

41 CFR 101-39.104 - Notice of establishment of a fleet management system.

Code of Federal Regulations, 2011 CFR

2011-07-01

... management system in order to work out any problems pertaining to establishing and operating fleet management... of a fleet management system. 101-39.104 Section 101-39.104 Public Contracts and Property Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION...

41 CFR 101-39.104 - Notice of establishment of a fleet management system.

Code of Federal Regulations, 2013 CFR

2013-07-01

... management system in order to work out any problems pertaining to establishing and operating fleet management... of a fleet management system. 101-39.104 Section 101-39.104 Public Contracts and Property Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION...

41 CFR 101-39.104 - Notice of establishment of a fleet management system.

Code of Federal Regulations, 2012 CFR

2012-07-01

... management system in order to work out any problems pertaining to establishing and operating fleet management... of a fleet management system. 101-39.104 Section 101-39.104 Public Contracts and Property Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION...

ARMY CYBER STRUCTURE ALIGNMENT

DTIC Science & Technology

2016-02-16

Director of Navy Staff Vice Admiral J. M. Bird , Missions, Functions, and Tasks of Commander, U.S. Fleet Cyber Command and Commander, U.S. Tenth Fleet...www.doncio.navy.mil/ContentView.aspx?ID=649. Director of Navy Staff Vice Admiral J. M. Bird , Missions, Functions, and Tasks of Commander, U.S. Fleet Cyber

76 FR 68381 - Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Pennsylvania Clean...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-04

... period within which vehicle manufacturers could comply with the program's fleet average non-methane... year meets the specified phase-in requirements according to the fleet average non- methane hydrocarbon requirement for that year. The fleet average non- methane hydrocarbon emission limits become progressively...

75 FR 11880 - California State Nonroad Engine Pollution Control Standards; California Nonroad Compression...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-12

... EPA that it has adopted amendments to its emission standards for fleets that operate nonroad, diesel..., CARB requested that EPA authorize California to enforce its In-Use Off-Road Diesel-Fueled Fleets... through 2449.3). CARB's regulations require fleets that operate nonroad, diesel-fueled equipment with...

41 CFR 101-39.304 - Modification or installation of accessory equipment.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.3-Use and Care of GSA Interagency Fleet Management System Vehicles § 101-39.304 Modification or installation of accessory equipment. The modification of a GSA Interagency Fleet Management System (IFMS) vehicle or the permanent installation of...

41 CFR 101-39.206 - Seasonal or unusual requirements.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management System Services... requirements for vehicles or related services shall inform the GSA IFMS fleet management center as far in... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Seasonal or unusual...

41 CFR 101-39.102-1 - Records, facilities, personnel, and appropriations.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.102-1 Records, facilities, personnel, and appropriations. (a) If GSA decides to establish a fleet management system, GSA, with the assistance of the...

41 CFR 109-39.300 - General.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.3-Use and Care of GSA Interagency Fleet Management System... operators and passengers in GSA Interagency Fleet Management System (IFMS) motor vehicles are aware of the... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false General. 109-39.300...

Commercial Vehicle Fleet Management And Information Systems, Technical Memorandum 1, Classification Of Fleet Operations, And Selection Of Candidate Case-Study Fleets

DOT National Transportation Integrated Search

1994-11-04

THE ECONOMIC WELL-BEING AND COMPETITIVENESS OF THE U.S. ECONOMY DEPEND HEAVILY ON RELIABLE AND EFFICIENT FREIGHT MOVEMENTS. TRUCKING ACCOUNTS FOR ABOUT 75 PERCENT ($270 BILLION) OF THE $350 BILLION SPENT ANNUALLY ON FREIGHT TRANSPORTATION. THE APPLIC...

Analysis of required fleet size and private sector cost comparisons for the USCG inland construction tender fleet : final report

DOT National Transportation Integrated Search

1994-05-01

This report documents an analysis performed in support of the United States Coast Guard in managing its fleet of construction tenders (WLICs). The project was sponsored by the Coast Guard's Office of Navigation Safety and Waterway Services, Short Ran...

40 CFR 86.001-22 - Approval of application for certification; test fleet selections; determinations of parameters...

Code of Federal Regulations, 2010 CFR

2010-07-01

... certification; test fleet selections; determinations of parameters subject to adjustment for certification and..., and for 1985 and Later Model Year New Gasoline Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas...; test fleet selections; determinations of parameters subject to adjustment for certification and...

40 CFR 86.001-22 - Approval of application for certification; test fleet selections; determinations of parameters...

Code of Federal Regulations, 2011 CFR

2011-07-01

... certification; test fleet selections; determinations of parameters subject to adjustment for certification and..., and for 1985 and Later Model Year New Gasoline Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas...; test fleet selections; determinations of parameters subject to adjustment for certification and...

47 CFR 87.25 - Filing of applications.

Code of Federal Regulations, 2011 CFR

2011-10-01

... rules. (c) One application may be submitted for the total number of aircraft stations in the fleet (fleet license). (d) One application for aeronautical land station license may be submitted for the total number of stations in the fleet. (e) One application for modification or transfer of control may be...

47 CFR 87.25 - Filing of applications.

Code of Federal Regulations, 2012 CFR

2012-10-01

... rules. (c) One application may be submitted for the total number of aircraft stations in the fleet (fleet license). (d) One application for aeronautical land station license may be submitted for the total number of stations in the fleet. (e) One application for modification or transfer of control may be...

47 CFR 87.25 - Filing of applications.

Code of Federal Regulations, 2014 CFR

2014-10-01

... rules. (c) One application may be submitted for the total number of aircraft stations in the fleet (fleet license). (d) One application for aeronautical land station license may be submitted for the total number of stations in the fleet. (e) One application for modification or transfer of control may be...

47 CFR 87.25 - Filing of applications.

Code of Federal Regulations, 2013 CFR

2013-10-01

... rules. (c) One application may be submitted for the total number of aircraft stations in the fleet (fleet license). (d) One application for aeronautical land station license may be submitted for the total number of stations in the fleet. (e) One application for modification or transfer of control may be...

From Concept to Design: Progress on the J-2X Upper Stage Engine for the Ares Launch Vehicles

NASA Technical Reports Server (NTRS)

Byrd, Thomas

2008-01-01

In accordance with national policy and NASA's Global Exploration Strategy, the Ares Projects Office is embarking on development of a new launch vehicle fleet to fulfill the national goals of replacing the space shuttle fleet, returning to the moon, and exploring farther destinations like Mars. These goals are shaped by the decision to retire the shuttle fleet by 2010, budgetary constraints, and the requirement to create a new fleet that is safer, more reliable, operationally more efficient than the shuttle fleet, and capable of supporting long-range exploration goals. The present architecture for the Constellation Program is the result of extensive trades during the Exploration Systems Architecture Study and subsequent refinement by the Ares Projects Office at Marshall Space Flight Center.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study: Final Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

2015-06-01

Collect and evaluate data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization Study. The Advanced Vehicle Testing Activity study seeks to collect and evaluate data to validate the utilization of advanced plug-in electric vehicle (PEV) transportation. This report summarizes the fleets studied to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a batterymore » electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.« less

Fleet DNA (Presentation)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Walkokwicz, K.; Duran, A.

2014-06-01

The Fleet DNA project objectives include capturing and quantifying drive cycle and technology variation for the multitude of medium- and heavy-duty vocations; providing a common data storage warehouse for medium- and heavy-duty vehicle fleet data across DOE activities and laboratories; and integrating existing DOE tools, models, and analyses to provide data-driven decision making capabilities. Fleet DNA advantages include: for Government - providing in-use data for standard drive cycle development, R&D, tech targets, and rule making; for OEMs - real-world usage datasets provide concrete examples of customer use profiles; for fleets - vocational datasets help illustrate how to maximize return onmore » technology investments; for Funding Agencies - ways are revealed to optimize the impact of financial incentive offers; and for researchers -a data source is provided for modeling and simulation.« less

Alternative Fuels Data Center: Publications

Science.gov Websites

report is a summary of the project design and results of the analysis of data collected during the hygiene, emissions, and fleet economics. CleanFleet Final Report Project Design and Implementation, Vol. 2 CleanFleet findings, the design and implementation of the project are summarized. Clean Cities Drive - Fall

Transportation | NREL

Science.gov Websites

baseline 2005. In baseline 2005, the fleet used 6,521 gasoline gallon equivalent (GGE) of E-85, in 2016 the fleet emitted 422 grams of carbon dioxide equivalent per mile. In 2017, it emitted 329 grams of carbon dioxide equivalent per mile. In 2005, NREL's fleet included 20 E-85 vehicles, 13 compressed natural gas

48 CFR 252.251-7001 - Use of Interagency Fleet Management System (IFMS) vehicles and related services.

Code of Federal Regulations, 2011 CFR

2011-10-01

... Management System (IFMS) vehicles and related services. 252.251-7001 Section 252.251-7001 Federal Acquisition... Fleet Management System (IFMS) vehicles and related services. As prescribed in 251.205, use the following clause: Use of Interagency Fleet Management System (IFMS) Vehicles and Related Services (DEC 1991...

Alternative Fuels Data Center: Blue Ridge Parkway Incorporates Alternative

Science.gov Websites

Fuels in Its Fleet Blue Ridge Parkway Incorporates Alternative Fuels in Its Fleet to someone by E-mail Share Alternative Fuels Data Center: Blue Ridge Parkway Incorporates Alternative Fuels in Its Fleet on Facebook Tweet about Alternative Fuels Data Center: Blue Ridge Parkway Incorporates Alternative

40 CFR 86.1865-12 - How to comply with the fleet average CO2 standards.

Code of Federal Regulations, 2013 CFR

2013-07-01

... different strategies are and why they are used. (i) Calculating the fleet average carbon-related exhaust emissions. (1) Manufacturers must compute separate production-weighted fleet average carbon-related exhaust... as defined in § 86.1818-12. The model type carbon-related exhaust emission results determined...

40 CFR 86.1865-12 - How to comply with the fleet average CO2 standards.

Code of Federal Regulations, 2011 CFR

2011-07-01

... different strategies are and why they are used. (i) Calculating the fleet average carbon-related exhaust emissions. (1) Manufacturers must compute separate production-weighted fleet average carbon-related exhaust... as defined in § 86.1818-12. The model type carbon-related exhaust emission results determined...

40 CFR 86.1865-12 - How to comply with the fleet average CO2 standards.

Code of Federal Regulations, 2012 CFR

2012-07-01

... different strategies are and why they are used. (i) Calculating the fleet average carbon-related exhaust emissions. (1) Manufacturers must compute separate production-weighted fleet average carbon-related exhaust... as defined in § 86.1818-12. The model type carbon-related exhaust emission results determined...

40 CFR 86.421-78 - Test fleet.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 19 2013-07-01 2013-07-01 false Test fleet. 86.421-78 Section 86.421... Later New Motorcycles, General Provisions § 86.421-78 Test fleet. (a) A test vehicle will be selected by... to operate and test additional vehicles which are identical to those selected by the Administrator...

40 CFR 86.421-78 - Test fleet.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 19 2014-07-01 2014-07-01 false Test fleet. 86.421-78 Section 86.421... Later New Motorcycles, General Provisions § 86.421-78 Test fleet. (a) A test vehicle will be selected by... to operate and test additional vehicles which are identical to those selected by the Administrator...

40 CFR 86.421-78 - Test fleet.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 19 2012-07-01 2012-07-01 false Test fleet. 86.421-78 Section 86.421... Later New Motorcycles, General Provisions § 86.421-78 Test fleet. (a) A test vehicle will be selected by... to operate and test additional vehicles which are identical to those selected by the Administrator...

Alternative Fuels Data Center: Alpha Baking Company Augments Its Fleet With

Science.gov Websites

Propane Delivery Trucks Alpha Baking Company Augments Its Fleet With Propane Delivery Trucks to someone by E-mail Share Alternative Fuels Data Center: Alpha Baking Company Augments Its Fleet With Propane Delivery Trucks on Facebook Tweet about Alternative Fuels Data Center: Alpha Baking Company

41 CFR 101-39.404 - Claims in favor of the Government.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.4-Accidents and Claims § 101-39.404 Claims in favor of... Interagency Fleet Management System (IFMS) vehicle is at fault and that party can be reasonably identified... pertaining to the accident and its investigation to the servicing GSA IFMS fleet management center. The GSA...

Fleet DNA Brings Fleet Data to Life, Informs R&D | NREL

Science.gov Websites

understand the broad operational range of commercial vehicles across vocations and weight classes. This commercial vehicle and equipment manufacturing realm-including Cummins, Robert Bosch, Peterbilt, Volvo, Ford Rosa, NREL 34672 The Fleet DNA clearinghouse of commercial vehicle operations data features over 11.5

40 CFR 86.421-78 - Test fleet.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Later New Motorcycles, General Provisions § 86.421-78 Test fleet. (a) A test vehicle will be selected by... Administrator believes has the greatest probability of exceeding the standards will be selected. (b) At the... prior to the start of testing and not later than 30 days following notification of the test fleet...

40 CFR 86.421-78 - Test fleet.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Later New Motorcycles, General Provisions § 86.421-78 Test fleet. (a) A test vehicle will be selected by... Administrator believes has the greatest probability of exceeding the standards will be selected. (b) At the... prior to the start of testing and not later than 30 days following notification of the test fleet...

48 CFR 252.251-7001 - Use of Interagency Fleet Management System (IFMS) vehicles and related services.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Management System (IFMS) vehicles and related services. 252.251-7001 Section 252.251-7001 Federal Acquisition... Fleet Management System (IFMS) vehicles and related services. As prescribed in 251.205, use the following clause: Use of Interagency Fleet Management System (IFMS) Vehicles and Related Services (DEC 1991...

47 CFR 80.55 - Application for a fleet station license.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 47 Telecommunication 5 2011-10-01 2011-10-01 false Application for a fleet station license. 80.55... SERVICES STATIONS IN THE MARITIME SERVICES Applications and Licenses § 80.55 Application for a fleet station license. (a) An applicant may apply for licenses for two or more radiotelephone stations aboard...

47 CFR 80.55 - Application for a fleet station license.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 47 Telecommunication 5 2013-10-01 2013-10-01 false Application for a fleet station license. 80.55... SERVICES STATIONS IN THE MARITIME SERVICES Applications and Licenses § 80.55 Application for a fleet station license. (a) An applicant may apply for licenses for two or more radiotelephone stations aboard...

47 CFR 80.55 - Application for a fleet station license.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 47 Telecommunication 5 2012-10-01 2012-10-01 false Application for a fleet station license. 80.55... SERVICES STATIONS IN THE MARITIME SERVICES Applications and Licenses § 80.55 Application for a fleet station license. (a) An applicant may apply for licenses for two or more radiotelephone stations aboard...

47 CFR 80.55 - Application for a fleet station license.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 47 Telecommunication 5 2010-10-01 2010-10-01 false Application for a fleet station license. 80.55... SERVICES STATIONS IN THE MARITIME SERVICES Applications and Licenses § 80.55 Application for a fleet station license. (a) An applicant may apply for licenses for two or more radiotelephone stations aboard...

47 CFR 80.55 - Application for a fleet station license.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 47 Telecommunication 5 2014-10-01 2014-10-01 false Application for a fleet station license. 80.55... SERVICES STATIONS IN THE MARITIME SERVICES Applications and Licenses § 80.55 Application for a fleet station license. (a) An applicant may apply for licenses for two or more radiotelephone stations aboard...

NREL Document Profiles Natural Gas Fueling, Fleet Operation

Science.gov Websites

, Waste Management's LNG Truck Fleet Start-Up Experience, offers solid evidence that LNG-powered vehicles program from concept to start-up to present-day operation, describing the vehicle, engine and fueling . The document Waste Management's LNG Truck Fleet Start-Up Experience is one of a series of NREL

14 CFR 21.4 - ETOPS reporting requirements.

Code of Federal Regulations, 2010 CFR

2010-01-01

... with more than two engines, the system must be in place for the first 250,000 world fleet engine-hours... place for the first 250,000 world fleet engine-hours for the approved airplane-engine combination and after that until— (i) The world fleet 12-month rolling average IFSD rate is at or below the rate...

NREL Evaluates Performance of Fast-Charge Electric Buses

DOE Office of Scientific and Technical Information (OSTI.GOV)

2016-09-16

This real-world performance evaluation is designed to enhance understanding of the overall usage and effectiveness of electric buses in transit operation and to provide unbiased technical information to other agencies interested in adding such vehicles to their fleets. Initial results indicate that the electric buses under study offer significant fuel and emissions savings. The final results will help Foothill Transit optimize the energy-saving potential of its transit fleet. NREL's performance evaluations help vehicle manufacturers fine-tune their designs and help fleet managers select fuel-efficient, low-emission vehicles that meet their bottom line and operational goals. help Foothill Transit optimize the energy-saving potentialmore » of its transit fleet. NREL's performance evaluations help vehicle manufacturers fine-tune their designs and help fleet managers select fuel-efficient, low-emission vehicles that meet their bottom line and operational goals.« less

Designing a Methodology for Future Air Travel Scenarios

NASA Technical Reports Server (NTRS)

Wuebbles, Donald J.; Baughcum, Steven L.; Gerstle, John H.; Edmonds, Jae; Kinnison, Douglas E.; Krull, Nick; Metwally, Munir; Mortlock, Alan; Prather, Michael J.

1992-01-01

The growing demand on air travel throughout the world has prompted several proposals for the development of commercial aircraft capable of transporting a large number of passengers at supersonic speeds. Emissions from a projected fleet of such aircraft, referred to as high-speed civil transports (HSCT's), are being studied because of their possible effects on the chemistry and physics of the global atmosphere, in particular, on stratospheric ozone. At the same time, there is growing concern about the effects on ozone from the emissions of current (primarily subsonic) aircraft emissions. Evaluating the potential atmospheric impact of aircraft emissions from HSCT's requires a scientifically sound understanding of where the aircraft fly and under what conditions the aircraft effluents are injected into the atmosphere. A preliminary set of emissions scenarios are presented. These scenarios will be used to understand the sensitivity of environment effects to a range of fleet operations, flight conditions, and aircraft specifications. The baseline specifications for the scenarios are provided: the criteria to be used for developing the scenarios are defined, the required data base for initiating the development of the scenarios is established, and the state of the art for those scenarios that have already been developed is discussed. An important aspect of the assessment will be the evaluation of realistic projections of emissions as a function of both geographical distribution and altitude from an economically viable commercial HSCT fleet. With an assumed introduction date of around the year 2005, it is anticipated that there will be no HSCT aircraft in the global fleet at that time. However, projections show that, by 2015, the HSCT fleet could reach significant size. We assume these projections of HSCT and subsonic fleets for about 2015 can the be used as input to global atmospheric chemistry models to evaluate the impact of the HSCT fleets, relative to an all-subsonic future fleet. The methodology, procedures, and recommendations for the development of future HSCT and the subsonic fleet scenarios used for this evaluation are discussed.

Medium- and Heavy-Duty Vehicle Field Evaluations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kelly, Kenneth J; Prohaska, Robert S

This presentation provides information about NREL's real-world evaluations of commercial vehicle technologies, which compare the performance of advanced medium- and heavy-duty fleet vehicles to conventional vehicles. NREL conducts these customized evaluations in partnership with commercial and government fleets across the nation. Current fleet and industry partners include UPS, Workhorse, Parker Hannifin, Proterra, Foothill Transit, Long Beach Transit, BYD, Odyne, Duke Energy, Miami-Dade, TransPower, Eaton, Cummins, Bosch, and Clean Cities/National Clean Fleet Partnership. The presentation focuses on two particular vehicle evaluation projects -- hydraulic hybrid refuse haulers operated by Miami-Dade and electric transit buses operated by Foothill Transit.

EVALUATION OF THE EFFECTIVENESS OF TRUCK EFFICIENCY TECHNOLOGIES IN CLASS 8 TRACTOR-TRAILERS BASED ON A TRACTIVE ENERGY ANALYSIS USING MEASURED DRIVE CYCLE DATA

DOE Office of Scientific and Technical Information (OSTI.GOV)

LaClair, Tim J; Gao, Zhiming; Fu, Joshua S.

2014-01-01

Quantifying the fuel savings that can be achieved from different truck fuel efficiency technologies for a fleet s specific usage allows the fleet to select the combination of technologies that will yield the greatest operational efficiency and profitability. This paper presents an analysis of vehicle usage in a commercial vehicle fleet and an assessment of advanced efficiency technologies using an analysis of measured drive cycle data for a class 8 regional commercial shipping fleet. Drive cycle measurements during a period of a full year from six tractor-trailers in normal operations in a less-than-truckload (LTL) carrier were analyzed to develop amore » characteristic drive cycle that is highly representative of the fleet s usage. The vehicle mass was also estimated to account for the variation of loads that the fleet experienced. The drive cycle and mass data were analyzed using a tractive energy analysis to quantify the fuel efficiency and CO2 emissions benefits that can be achieved on class 8 tractor-trailers when using advanced efficiency technologies, either individually or in combination. Although differences exist among class 8 tractor-trailer fleets, this study provides valuable insight into the energy and emissions reduction potential that various technologies can bring in this important trucking application.« less

76 FR 31351 - Safety Requirements and Manning Exemption Eligibility on Distant Water Tuna Fleet Vessels

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-31

...The Coast Guard announces the availability of Office of Vessel Activities Policy Letter 11-05 regarding Distant Water Tuna Fleet vessels manning exemption eligibility and safety requirements. This final policy clarifies the requirements to allow a distant water tuna fleet vessel to engage foreign citizens under a temporary manning exemption.

76 FR 3646 - Safety Requirements and Manning Exemption Eligibility on Distant Water Tuna Fleet Vessels

Federal Register 2010, 2011, 2012, 2013, 2014

2011-01-20

...Pursuant to Section 904 of the 2010 Coast Guard Authorization Act, the Coast Guard announces the availability of a draft policy regarding distant water tuna fleet vessels manning exemption eligibility and safety requirements. We request your comments on the Safety Requirements and Manning Exemption Eligibility on Distant Water Tuna Fleet Vessels.

Navy Force Structure: A Bigger Fleet Background and Issues for Congress

DTIC Science & Technology

2016-09-16

Aircraft Carrier Gap in the Gulf,” Washington Institute for Near East Policy, October 5, 2015. 8 See, for example, Hope Hodge Seck, “CNO: Navy to Hit...Long Deployments Will Harm the Fleet,” Navy Times, April 20, 2016; Hope Hodge Seck, “Overtaxed Fleet Needs Shorer Deployments,” Military.com, March

40 CFR 86.1865-12 - How to comply with the fleet average CO2 standards.

Code of Federal Regulations, 2014 CFR

2014-07-01

...) Calculating the fleet average carbon-related exhaust emissions. (1) Manufacturers must compute separate production-weighted fleet average carbon-related exhaust emissions at the end of the model year for passenger... for sale, and certifying model types to standards as defined in § 86.1818-12. The model type carbon...

Alternative Fuels Data Center: Phoenix Utility Fleet Drives Smarter with

Science.gov Websites

electric car. College Students Engineer Efficient Vehicles in EcoCAR 2 Competition Aug. 2, 2014 Photo of a BiodieselA> Phoenix Utility Fleet Drives Smarter with Biodiesel to someone by E-mail Share ... Aug. 26, 2017 Phoenix Utility Fleet Drives Smarter with Biodiesel Watch how a utility company in

Alternative Fuels Data Center

Science.gov Websites

fueled for the fleet to be subject to the regulatory requirements. Under Standard Compliance, the AFVs that may be used toward compliance or banked once the fleet achieves compliance for investments in composition. For more information, visit the EPAct State and Alternative Fuel Provider Fleets website

77 FR 76597 - Petition for Waiver of Compliance

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-28

... fleet to the age exploration M7 waiver. FRA assigned the petition Docket Number FRA-2004-17099. MNR is...). The MNR M7 fleet is currently undergoing age exploration tests. The MNR M7 fleet is averaging 68,000... only those components not yet captured by the KB-CT1 (M7) age exploration testing in support of this...

Alternative Fuels Data Center: County Fleet Goes Big on Idle Reduction,

Science.gov Websites

Ethanol Use, Fuel Efficiency County Fleet Goes Big on Idle Reduction, Ethanol Use, Fuel , Ethanol Use, Fuel Efficiency on Facebook Tweet about Alternative Fuels Data Center: County Fleet Goes Big on Idle Reduction, Ethanol Use, Fuel Efficiency on Twitter Bookmark Alternative Fuels Data Center

USNAVSO/4th Fleet

Science.gov Websites

. FOURTH Fleet (USNAVSO/FOURTHFLT) employs maritime forces in cooperative maritime security operations in €­(Hidden)‬ USNAVSO/4th Fleet News Retrieving Data Links Secretary of the Navy Chief of Naval Operations Department of Defense U.S. Southern Command SOCIAL MEDIA Quick Links US Navy Recruiting | No Fear Act Data

Hydraulic Hybrid Fleet Vehicle Testing | Transportation Research | NREL

Science.gov Websites

Hydraulic Hybrid Fleet Vehicle Evaluations Hydraulic Hybrid Fleet Vehicle Evaluations How Hydraulic Hybrid Vehicles Work Hydraulic hybrid systems can capture up to 70% of the kinetic energy that would otherwise be lost during braking. This energy drives a pump, which transfers hydraulic fluid from a low

Alternative Fuels Data Center

Science.gov Websites

to achieve the Replacement Fuel Goal. For more information on the Private and Local Government Fleet Private and Local Government Fleets Under the Energy Policy Act (EPAct) of 1992, the U.S . Department of Energy (DOE) was directed to determine whether private and local government fleets should be

Alternative Fuels Data Center: City of Cincinnati Turns Sustainable Fleet

Science.gov Websites

Plan into On-Road Reality City of Cincinnati Turns Sustainable Fleet Plan into On-Road Reality Plan into On-Road Reality on Facebook Tweet about Alternative Fuels Data Center: City of Cincinnati Turns Sustainable Fleet Plan into On-Road Reality on Twitter Bookmark Alternative Fuels Data Center

41 CFR 101-39.104 - Notice of establishment of a fleet management system.

Code of Federal Regulations, 2010 CFR

2010-07-01

... system. GSA will inform each affected agency of the time schedule for establishment of a fleet management... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Notice of establishment of a fleet management system. 101-39.104 Section 101-39.104 Public Contracts and Property Management...

77 FR 18718 - Petroleum Reduction and Alternative Fuel Consumption Requirements for Federal Fleets

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-28

... Statistical Tool Web-based reporting system (FAST) for FY 2005. Moreover, section 438.102(b) would require... reflected in FY 2005 FAST data, or (2) the lesser of (a) five percent of total Federal fleet vehicle fuel... event that the Federal fleet's alternative fuel use value for FY 2005 submitted through FAST did not...

DOE Office of Scientific and Technical Information (OSTI.GOV)

Two online resources help fleets evaluate the economic soundness of a compressed natural gas program. The National Renewable Energy Laboratory's (NREL's) Vehicle Infrastructure and Cash-Flow Evaluation (VICE 2.0) model and the accompanying report, Building a Business Case for Compressed Natural Gas in Fleet Applications, are uniquely designed for fleet managers considering an investment in CNG and can help ensure wise investment decisions about CNG vehicles and infrastructure.

Electric and Plug-In Hybrid Electric Fleet Vehicle Testing | Transportation

Science.gov Websites

Research | NREL Electric and Plug-In Hybrid Electric Fleet Vehicle Evaluations Electric and Plug-In Hybrid Electric Fleet Vehicle Evaluations How Electric and Plug-In Hybrid Electric Vehicles Work EVs use batteries to store the electric energy that powers the motor. EV batteries are charged by

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

The final rule of the Energy Policy Act of 2005 and its associated regulations enable covered state and alternative fuel provider fleets to obtain waivers from the alternative fuel vehicle (AFV)-acquisition requirements of Standard Compliance. Under Alternative Compliance, covered fleets instead meet a petroleum-use reduction requirement. This guidance document is designed to help fleets better understand the Alternative Compliance option and successfully complete the waiver application process.

77 FR 44475 - Security Zones; Seattle's Seafair Fleet Week Moving Vessels, Puget Sound, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-30

...-AA87 Security Zones; Seattle's Seafair Fleet Week Moving Vessels, Puget Sound, WA AGENCY: Coast Guard... Seafair Fleet Week Moving Vessels Security Zones from 12:00 p.m. on July 31, 2012 through 5:00 p.m. on August 6, 2012. These security zones are necessary to help ensure the security of the vessels from...

Research requirements to improve reliability of civil helicopters

NASA Technical Reports Server (NTRS)

Dougherty, J. J., III; Barrett, L. D.

1978-01-01

The major reliability problems of the civil helicopter fleet as reported by helicopter operational and maintenance personnel are documented. An assessment of each problem is made to determine if the reliability can be improved by application of present technology or whether additional research and development are required. The reliability impact is measured in three ways: (1) The relative frequency of each problem in the fleet. (2) The relative on-aircraft manhours to repair, associated with each fleet problem. (3) The relative cost of repair materials or replacement parts associated with each fleet problem. The data reviewed covered the period of 1971 through 1976 and covered only turbine engine aircraft.

Fleet Assignment Using Collective Intelligence

NASA Technical Reports Server (NTRS)

Antoine, Nicolas E.; Bieniawski, Stefan R.; Kroo, Ilan M.; Wolpert, David H.

2004-01-01

Airline fleet assignment involves the allocation of aircraft to a set of flights legs in order to meet passenger demand, while satisfying a variety of constraints. Over the course of the day, the routing of each aircraft is determined in order to minimize the number of required flights for a given fleet. The associated flow continuity and aircraft count constraints have led researchers to focus on obtaining quasi-optimal solutions, especially at larger scales. In this paper, the authors propose the application of an agent-based integer optimization algorithm to a "cold start" fleet assignment problem. Results show that the optimizer can successfully solve such highly- constrained problems (129 variables, 184 constraints).

PM, NOx and butane emissions from on-road vehicle fleets in Hong Kong and their implications on emission control policy

NASA Astrophysics Data System (ADS)

Ning, Zhi; Wubulihairen, Maimaitireyimu; Yang, Fenhuan

2012-12-01

Vehicular emissions are the major sources of air pollution in urban areas. For metropolitan cities with large population working and living in environments with direct traffic impact, emission control is of great significance to protect public health. Implementation of more stringent emission standards, retrofitting fleet with emission control devices and switching to clearer fuel has been commonly practiced in different cities including Hong Kong. The present study employed a new plume chasing method for effective and quick evaluation of on-road fleet emission factors of particulate matter (PM), nitrogen oxides (NOx), and butane from heavy duty diesel trucks, diesel buses and liquefied petroleum gas (LPG) vehicles. The results showed distinct profiles of the emissions from different fleets with excessive butane emissions from LPG fleet and contrasting PM and NOx emissions from diesel trucks and buses fleets. A cross comparison was also made with emission data from other cities and from historic local studies. The implications of the observed difference on the effectiveness of emission control measures and policy are discussed with recommendations of direction for future research and policy making.

Projecting effects of improvements in passive safety of the New Zealand light vehicle fleet.

PubMed

Keall, Michael; Newstead, Stuart; Jones, Wayne

2007-09-01

In the year 2000, as part of the process for setting New Zealand road safety targets, a projection was made for a reduction in social cost of 15.5 percent associated with improvements in crashworthiness, which is a measure of the occupant protection of the light passenger vehicle fleet. Since that document was produced, new estimates of crashworthiness have become available, allowing for a more accurate projection. The objective of this paper is to describe a methodology for projecting changes in casualty rates associated with passive safety features and to apply this methodology to produce a new prediction. The shape of the age distribution of the New Zealand light passenger vehicle fleet was projected to 2010. Projected improvements in crashworthiness and associated reductions in social cost were also modeled based on historical trends. These projections of changes in the vehicle fleet age distribution and of improvements in crashworthiness together provided a basis for estimating the future performance of the fleet in terms of secondary safety. A large social cost reduction of about 22 percent for 2010 compared to the year 2000 was predicted due to the expected huge impact of improvements in passive vehicle features on road trauma in New Zealand. Countries experiencing improvements in their vehicle fleets can also expect significant reductions in road injury compared to a less crashworthy passenger fleet. Such road safety gains can be analyzed using some of the methodology described here.

The Virtual Mission - A step-wise approach to large space missions

NASA Technical Reports Server (NTRS)

Hansen, Elaine; Jones, Morgan; Hooke, Adrian; Pomphrey, Richard

1992-01-01

Attention is given to the Virtual Mission (VM) concept, wherein multiple scientific instruments will be on different platforms, in different orbits, operated from different control centers, at different institutions, and reporting to different user groups. The VM concept enables NASA's science and application users to accomplish their broad science goals with a fleet made up of smaller, more focused spacecraft and to alleviate the difficulties involved with single, large, complex spacecraft. The concept makes possible the stepwise 'go-as-you-pay' extensible approach recommended by Augustine (1990). It enables scientists to mix and match the use of many smaller satellites in novel ways to respond to new scientific ideas and needs.

Telematics and Data Science: Informing Energy-Efficient Mobility: October 25, 2016 - October 31, 2017

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sears, Edward B; Daley, Ryan; Helm, Matthew

The University of Connecticut (UCONN) is exploring the possibility of adding electric vehicles (EVs) - including battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), or both - to its vehicle fleet. This report presents results of the UCONN fleet EV Suitability pilot program and offers recommendations for transitioning fleet vehicles to EVs as well as implementing adequate charging infrastructure.

41 CFR 102-34.335 - How do I submit information to the General Services Administration (GSA) for the Federal Fleet...

Code of Federal Regulations, 2012 CFR

2012-01-01

... through the Federal Automotive Statistical Tool (FAST), an Internet-based reporting tool. To find out how to submit motor vehicle data to GSA through FAST, consult the instructions from your agency fleet...; and (5) Fuel used. Note to § 102-34.335: The FAST system is also used by agency Fleet Managers to...

41 CFR 102-34.335 - How do I submit information to the General Services Administration (GSA) for the Federal Fleet...

Code of Federal Regulations, 2010 CFR

2010-07-01

... through the Federal Automotive Statistical Tool (FAST), an Internet-based reporting tool. To find out how to submit motor vehicle data to GSA through FAST, consult the instructions from your agency fleet...; and (5) Fuel used. Note to § 102-34.335: The FAST system is also used by agency Fleet Managers to...

41 CFR 102-34.335 - How do I submit information to the General Services Administration (GSA) for the Federal Fleet...

Code of Federal Regulations, 2014 CFR

2014-01-01

... through the Federal Automotive Statistical Tool (FAST), an Internet-based reporting tool. To find out how to submit motor vehicle data to GSA through FAST, consult the instructions from your agency fleet...; and (5) Fuel used. Note to § 102-34.335: The FAST system is also used by agency Fleet Managers to...

41 CFR 102-34.335 - How do I submit information to the General Services Administration (GSA) for the Federal Fleet...

Code of Federal Regulations, 2011 CFR

2011-01-01

... through the Federal Automotive Statistical Tool (FAST), an Internet-based reporting tool. To find out how to submit motor vehicle data to GSA through FAST, consult the instructions from your agency fleet...; and (5) Fuel used. Note to § 102-34.335: The FAST system is also used by agency Fleet Managers to...

41 CFR 102-34.335 - How do I submit information to the General Services Administration (GSA) for the Federal Fleet...

Code of Federal Regulations, 2013 CFR

2013-07-01

... through the Federal Automotive Statistical Tool (FAST), an Internet-based reporting tool. To find out how to submit motor vehicle data to GSA through FAST, consult the instructions from your agency fleet...; and (5) Fuel used. Note to § 102-34.335: The FAST system is also used by agency Fleet Managers to...

Perspectives on AFVs: State and city government fleet manager survey

DOE Office of Scientific and Technical Information (OSTI.GOV)

Whalen, P.

1999-02-01

In an effort to reduce national dependence on imported oil and to improve urban air quality, the US Department of Energy (DOE) is promoting the development and deployment of alternative fuels and alternative fuel vehicles (AFVs). To support this activity, DOE has directed the National Renewable Energy Laboratory (NREL) to develop and conduct projects to evaluate the performance and acceptability of light-duty AFVs compared to similar gasoline vehicles. As part of this effort, NREL has undertaken a number of evaluation projects, including conducting telephone surveys with fleet managers and drivers of AFVs in the federal fleet. This report summarizes themore » results of the survey of state and city government fleet managers.« less

The CPAT 2.0.2 Domain Model - How CPAT 2.0.2 "Thinks" From an Analyst Perspective.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Waddell, Lucas; Muldoon, Frank; Melander, Darryl J.

To help effectively plan the management and modernization of their large and diverse fleets of vehicles, the Program Executive Office Ground Combat Systems (PEO GCS) and the Program Executive Office Combat Support and Combat Service Support (PEO CS &CSS) commissioned the development of a large - scale portfolio planning optimization tool. This software, the Capability Portfolio Analysis Tool (CPAT), creates a detailed schedule that optimally prioritizes the modernization or replacement of vehicles within the fleet - respecting numerous business rules associated with fleet structure, budgets, industrial base, research and testing, etc., while maximizing overall fleet performance through time. This reportmore » contains a description of the organizational fleet structure and a thorough explanation of the business rules that the CPAT formulation follows involving performance, scheduling, production, and budgets. This report, which is an update to the original CPAT domain model published in 2015 (SAND2015 - 4009), covers important new CPAT features. This page intentionally left blank« less

INL Fleet Vehicle Characterization Study for the U.S. Department of Navy

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bennett, Brion Dale; Francfort, James Edward; Smart, John Galloway

Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy’s Idaho National Laboratory, is the lead laboratory for U.S. Department of Energy Advanced Vehicle Testing. Battelle Energy Alliance, LLC collected and evaluated data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization Study. The Advanced Vehicle Testing Activity’s study seeks to collect and evaluate data to validate use of advanced plug-in electric vehicle (PEV) transportation. This report focuses on US Department of Navy's fleet to identify daily operational characteristics of select vehicles and report findings onmore » vehicle and mission characterizations to support the successful introduction of PEVs into the agency’s fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.« less

The Navy at a Tipping Point: Maritime Dominance at Stake?

DTIC Science & Technology

2010-03-01

Navy" USN Deployment Strategy Future Global Environment for USN Operations External and Internal Drivers on USN Options Five Means for a "Global...Defense CARAT Deployment HCA cruises Counter-Dnjg oPs NAVSO/4 ,h Fleet Patmi NAVCENT/5,h Fleet GFS . . „ Horn of Global Fleet Station ...against advanced air defenses, conduct and enable littoral/amphibious operations in opposed environments , and establish blue-water dominance against

77 FR 35862 - Safety Zone; Fleet Week Maritime Festival, Pier 66 Elliott Bay, Seattle, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-15

... Zone; Fleet Week Maritime Festival, Pier 66 Elliott Bay, Seattle, WA AGENCY: Coast Guard, DHS. ACTION... Festival's Pier 66 Safety Zone in Elliott Bay, WA from 8 a.m. until 8 p.m. on August 1, 2012, however, it... Fleet Week Maritime Festival in 33 CFR 165.1330 on August 1, 2012, from 8 a.m. until 8 p.m.; however, it...

DoD Capability Benefits from Preserving the Civil Reserve Air Fleet (CRAF)

DTIC Science & Technology

2011-04-23

Master of Military Studies Research Paper September 2010- April 2011 4. TITLE AND SUBTITLE DoP capability benefits from preserving the Civil Reserve Air...capability benefits from preserving the Civil Reserve Air Fleet (CRAF) SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER...1 Executive Summary Title: DOD capability benefits from preserving the Civil Reserve Air Fleet (CRAF) Author: Major Constantine E. Tsoukatos

Testing the robustness of optimal access vessel fleet selection for operation and maintenance of offshore wind farms

DOE PAGES

Sperstad, Iver Bakken; Stålhane, Magnus; Dinwoodie, Iain; ...

2017-09-23

Optimising the operation and maintenance (O&M) and logistics strategy of offshore wind farms implies the decision problem of selecting the vessel fleet for O&M. Different strategic decision support tools can be applied to this problem, but much uncertainty remains regarding both input data and modelling assumptions. Our paper aims to investigate and ultimately reduce this uncertainty by comparing four simulation tools, one mathematical optimisation tool and one analytic spreadsheet-based tool applied to select the O&M access vessel fleet that minimizes the total O&M cost of a reference wind farm. The comparison shows that the tools generally agree on the optimalmore » vessel fleet, but only partially agree on the relative ranking of the different vessel fleets in terms of total O&M cost. The robustness of the vessel fleet selection to various input data assumptions was tested, and the ranking was found to be particularly sensitive to the vessels' limiting significant wave height for turbine access. Also the parameter with the greatest discrepancy between the tools, implies that accurate quantification and modelling of this parameter is crucial. The ranking is moderately sensitive to turbine failure rates and vessel day rates but less sensitive to electricity price and vessel transit speed.« less

Testing the robustness of optimal access vessel fleet selection for operation and maintenance of offshore wind farms

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sperstad, Iver Bakken; Stålhane, Magnus; Dinwoodie, Iain

Optimising the operation and maintenance (O&M) and logistics strategy of offshore wind farms implies the decision problem of selecting the vessel fleet for O&M. Different strategic decision support tools can be applied to this problem, but much uncertainty remains regarding both input data and modelling assumptions. Our paper aims to investigate and ultimately reduce this uncertainty by comparing four simulation tools, one mathematical optimisation tool and one analytic spreadsheet-based tool applied to select the O&M access vessel fleet that minimizes the total O&M cost of a reference wind farm. The comparison shows that the tools generally agree on the optimalmore » vessel fleet, but only partially agree on the relative ranking of the different vessel fleets in terms of total O&M cost. The robustness of the vessel fleet selection to various input data assumptions was tested, and the ranking was found to be particularly sensitive to the vessels' limiting significant wave height for turbine access. Also the parameter with the greatest discrepancy between the tools, implies that accurate quantification and modelling of this parameter is crucial. The ranking is moderately sensitive to turbine failure rates and vessel day rates but less sensitive to electricity price and vessel transit speed.« less

Cost, Energy, and Environmental Impact of Automated Electric Taxi Fleets in Manhattan.

PubMed

Bauer, Gordon S; Greenblatt, Jeffery B; Gerke, Brian F

2018-04-17

Shared automated electric vehicles (SAEVs) hold great promise for improving transportation access in urban centers while drastically reducing transportation-related energy consumption and air pollution. Using taxi-trip data from New York City, we develop an agent-based model to predict the battery range and charging infrastructure requirements of a fleet of SAEVs operating on Manhattan Island. We also develop a model to estimate the cost and environmental impact of providing service and perform extensive sensitivity analysis to test the robustness of our predictions. We estimate that costs will be lowest with a battery range of 50-90 mi, with either 66 chargers per square mile, rated at 11 kW or 44 chargers per square mile, rated at 22 kW. We estimate that the cost of service provided by such an SAEV fleet will be $0.29-$0.61 per revenue mile, an order of magnitude lower than the cost of service of present-day Manhattan taxis and $0.05-$0.08/mi lower than that of an automated fleet composed of any currently available hybrid or internal combustion engine vehicle (ICEV). We estimate that such an SAEV fleet drawing power from the current NYC power grid would reduce GHG emissions by 73% and energy consumption by 58% compared to an automated fleet of ICEVs.

Application of GPS data for benefits of air quality assessment and fleet management

NASA Astrophysics Data System (ADS)

Hao, Song; Fat Lam, Yun; Cheong Ying, Chi; Chan, Ka Lok

2017-04-01

In the modern digitizedsociety, traffic data can be easily collected for use in roadway development, urban planning and vehicle emission. These data are then further parameterized to support traffic simulation and roadside emission calculations. With the commercialization of AGPS/GPS technology, GPS data are widely utilized to study habit and travelling behaviors. GPS on franchised buses can provide not only positioning information for fleet management but also raw data to analyze traffic situations. In HK, franchised buses account for 6% of RSP and 20% of NOx emissions among the whole vehicle fleet. Being the most heavily means of public transport, the setting up of bus travelling trajectories and service frequency always raise concern from citizens. On this basis, there is an increasing interest and as well as to design and realize an effective cost benefit fleet management strategy. In this study, data collection analysis is carried out on all bus routes (i.e. 112) in Shatin district, one of the 18 districts in Hong Kong. The GPS/AGPS data through Esri ArcGIS investigate the potential benefit of GPS data in different emission scenarios (such as engine type over whole bus fleet). Building on the emission factors from EMFC-HK model, we accounted for factors like travelling distance, idling time, occupancy rate, service frequency, tire and break emissions. Through the simple emission developed model we demonstrate how GPS are data are utilized to assess bus fleet emissions. Further amelioration on the results involve tuning the model with field measurement so as to assess district level emission change after fleet optimization.

Multiparameter Flowfield Measurements in High-Pressure, Cryogenic Environments Using Femtosecond Lasers

NASA Technical Reports Server (NTRS)

Burns, Ross A.; Danehy, Paul M.; Peters, Christopher J.

2016-01-01

Femtosecond laser electronic excitation tagging (FLEET) and Rayleigh scattering (RS) from a femtosecond laser are demonstrated in the NASA Langley 0.3-m Transonic Cryogenic Tunnel (TCT). The measured signals from these techniques are examined for their thermodynamic dependencies in pure nitrogen. The FLEET signal intensity and signal lifetimes are found to scale primarily with the gas density, as does the RS signal. Several models are developed, which capture these physical behaviors. Notably, the FLEET and Rayleigh scattering intensities scale linearly with the flow density, while the FLEET signal decay rates are a more complex function of the thermodynamic state of the gas. The measurement of various flow properties are demonstrated using these techniques. While density was directly measured from the signal intensities and FLEET signal lifetime, temperature and pressure were measured using the simultaneous FLEET velocity measurements while assuming the flow had a constant total enthalpy. Measurements of density, temperature, and pressure from the FLEET signal are made with accuracies as high as 5.3 percent, 0.62 percent, and 6.2 percent, respectively, while precisions were approximately 10 percent, 0.26 percent, and 11 percent for these same quantities. Similar measurements of density from Rayleigh scattering showed an overall accuracy of 3.5 percent and a precision of 10.2 percent over a limited temperature range (T greater than 195 K). These measurements suggest a high degree of utility at using the femtosecond-laser based diagnostics for making multiparameter measurements in high-pressure, cryogenic environments such as large-scale TCT facilities.

A road safety performance indicator for vehicle fleet compatibility.

PubMed

Christoph, Michiel; Vis, Martijn Alexander; Rackliff, Lucy; Stipdonk, Henk

2013-11-01

This paper discusses the development and the application of a safety performance indicator which measures the intrinsic safety of a country's vehicle fleet related to fleet composition. The indicator takes into account both the 'relative severity' of individual collisions between different vehicle types, and the share of those vehicle types within a country's fleet. The relative severity is a measure for the personal damage that can be expected from a collision between two vehicles of any type, relative to that of a collision between passenger cars. It is shown how this number can be calculated using vehicle mass only. A sensitivity analysis is performed to study the dependence of the indicator on parameter values and basic assumptions made. The indicator is easy to apply and satisfies the requirements for appropriate safety performance indicators. It was developed in such a way that it specifically scores the intrinsic safety of a fleet due to its composition, without being influenced by other factors, like helmet wearing. For the sake of simplicity, and since the required data is available throughout Europe, the indicator was applied to the relative share of three of the main vehicle types: passenger cars, heavy goods vehicles and motorcycles. Using the vehicle fleet data from 13EU Member States and Norway, the indicator was used to rank the countries' safety performance. The UK was found to perform best in terms of its fleet composition (value is 1.07), while Greece has the worst performance with the highest indicator value (1.41). Copyright © 2013 Elsevier Ltd. All rights reserved.

Addressing the minimum fleet problem in on-demand urban mobility.

PubMed

Vazifeh, M M; Santi, P; Resta, G; Strogatz, S H; Ratti, C

2018-05-01

Information and communication technologies have opened the way to new solutions for urban mobility that provide better ways to match individuals with on-demand vehicles. However, a fundamental unsolved problem is how best to size and operate a fleet of vehicles, given a certain demand for personal mobility. Previous studies 1-5 either do not provide a scalable solution or require changes in human attitudes towards mobility. Here we provide a network-based solution to the following 'minimum fleet problem', given a collection of trips (specified by origin, destination and start time), of how to determine the minimum number of vehicles needed to serve all the trips without incurring any delay to the passengers. By introducing the notion of a 'vehicle-sharing network', we present an optimal computationally efficient solution to the problem, as well as a nearly optimal solution amenable to real-time implementation. We test both solutions on a dataset of 150 million taxi trips taken in the city of New York over one year 6 . The real-time implementation of the method with near-optimal service levels allows a 30 per cent reduction in fleet size compared to current taxi operation. Although constraints on driver availability and the existence of abnormal trip demands may lead to a relatively larger optimal value for the fleet size than that predicted here, the fleet size remains robust for a wide range of variations in historical trip demand. These predicted reductions in fleet size follow directly from a reorganization of taxi dispatching that could be implemented with a simple urban app; they do not assume ride sharing 7-9 , nor require changes to regulations, business models, or human attitudes towards mobility to become effective. Our results could become even more relevant in the years ahead as fleets of networked, self-driving cars become commonplace 10-14 .

Set-Based Design: Fleet Architecture and Design 2030-2035

DTIC Science & Technology

2017-12-01

choose any quantity between 250 - 350 HP for the final system design without suffering the same consequences in PBD. Figure 2 visually compares SBD... comparing the coverages in 2035 to those in 2017. This report does not advocate for a larger or smaller domain grid factor for overall fleet design , as...Distribution is unlimited. SET-BASED DESIGN : FLEET ARCHITECTURE AND DESIGN 2030–2035 by David Alessandria, Isa Al-Jawder, Eric Clow, Carlos

Maritime Coalitions: When is Unity of Command Required

DTIC Science & Technology

2007-05-10

none. President Thomas Jefferson2 We are also guided by the conviction that no nation can build a safer, better world alone. Alliances and...Pacific Fleet ( BPF ) within the U.S. Pacific Fleet. Despite initial objections by Prime Minister Churchill earlier in the war, a Unity of Command...arrangement was ultimately established with the BPF placed under the operational command of the United States Pacific Fleet when at sea.14 The BPF

Harnessing the Transformative Tsunami: Fleet-wide 360-degree Feedback Revisited

DTIC Science & Technology

2012-06-01

lavished Tailhook Scandal underscored the need for change in U.S. Navy culture—to the public, chauvinism appeared to be a core value of the organization...dichotomy presently exists between veteran personnel whose original fleet experience was shaped during an all- male era and millennial recruits for...initiative to the fleet (2009). 37 Dr. Bowman supports this argument by inferring that command leadership did little to ensure follow-through by mid-level

A Concept of Operations for an Unclassified Common Operational Picture in Support of Maritime Domain Awareness

DTIC Science & Technology

2017-03-01

Responsibility AWS Amazon Web Services C2 Command and Control C4ISR Command, Control, Communications, Computers and Intelligence, Surveillance...and Reconnaissance C5F Commander Fifth Fleet C6F Commander Sixth Fleet C7F Commander Seventh Fleet CAMTES Computer -Assisted Maritime...capabilities. C. SCOPE AND LIMITATIONS The scope of this study is considerable and encompasses numerous agencies and classification levels. Some

Deriving and Validating a Road Safety Performance Indicator for Vehicle Fleet Passive Safety

PubMed Central

Page, Marianne; Rackliff, Lucy

2006-01-01

Road safety performance indicators (RSPI) are policy tools which describe the extent of insecure operational safety conditions within traffic systems. This study describes the production of an RSPI which represents the presence within a country’s vehicle fleet, of vehicles that may not effectively protect an occupant in a collision. This work is highly original, as it uses the entire vehicle database of European Union Member States in order to estimate the average level of passive safety offered by the entire fleet in each country. The EuroNCAP safety ratings and vehicle age of each vehicle in each fleet have been obtained to calculate the RSPI. The methodology used could be adopted as an international standard. PMID:16968645

Tug fleet and ground operations schedules and controls. Volume 2: part 1

NASA Technical Reports Server (NTRS)

1975-01-01

This Tug Fleet and Ground Operations Schedules and Controls Study addresses both ground operational data and technical requirements that span the Tug planning phase and operations phase. A similar study covering mission operations (by others) provides the complimentary flight operations details. The two studies provide the planning data requirements, resource allocation, and control milestones for supporting the requirements of the STS program. This Tug Fleet and Ground Operations Schedules and Controls Study incorporates the basic ground operations requirements and concepts provided by previous studies with the interrelationships of the planning, IUS transition, and Tug fleet operations phases. The interrelationships of these phases were studied as a system to optimize overall program benefits and minimize operational risk factors.

Introducing the MCHF/OVRP/SDMP: Multicapacitated/Heterogeneous Fleet/Open Vehicle Routing Problems with Split Deliveries and Multiproducts

PubMed Central

Yilmaz Eroglu, Duygu; Caglar Gencosman, Burcu; Cavdur, Fatih; Ozmutlu, H. Cenk

2014-01-01

In this paper, we analyze a real-world OVRP problem for a production company. Considering real-world constrains, we classify our problem as multicapacitated/heterogeneous fleet/open vehicle routing problem with split deliveries and multiproduct (MCHF/OVRP/SDMP) which is a novel classification of an OVRP. We have developed a mixed integer programming (MIP) model for the problem and generated test problems in different size (10–90 customers) considering real-world parameters. Although MIP is able to find optimal solutions of small size (10 customers) problems, when the number of customers increases, the problem gets harder to solve, and thus MIP could not find optimal solutions for problems that contain more than 10 customers. Moreover, MIP fails to find any feasible solution of large-scale problems (50–90 customers) within time limits (7200 seconds). Therefore, we have developed a genetic algorithm (GA) based solution approach for large-scale problems. The experimental results show that the GA based approach reaches successful solutions with 9.66% gap in 392.8 s on average instead of 7200 s for the problems that contain 10–50 customers. For large-scale problems (50–90 customers), GA reaches feasible solutions of problems within time limits. In conclusion, for the real-world applications, GA is preferable rather than MIP to reach feasible solutions in short time periods. PMID:25045735

Impact of environmental constraints and aircraft technology on airline fleet composition

NASA Astrophysics Data System (ADS)

Moolchandani, Kushal A.

This thesis models an airline's decisions about fleet evolution in order to maintain economic and regulatory viability. The aim is to analyze the fleet evolution under different scenarios of environmental policy and technology availability in order to suggest an optimal fleet under each case. An understanding of the effect of aircraft technologies, fleet size and age distribution, and operational procedures on airline performance may improve the quality of policies to achieve environmental goals. Additionally, the effect of decisions about fleet evolution on air travel is assessed as the change in market demand and profits of an abstracted, benevolent monopolist airline. Attention to the environmental impact of aviation has grown, and this has prompted several organizations such as ICAO (and, in response, NASA) to establish emissions reduction targets to reduce aviation's global climate impact. The introduction of new technology, change in operational procedures, etc. are some of the proposed means to achieve these targets. Of these, this thesis studies the efficacy of implementation of environmental policies in form of emissions constraints as a means to achieve these goals and assesses their impact on an airline's fleet evolution and technology use (along with resulting effects on air travel demand). All studies in this thesis are conducted using the Fleet-level Environmental Evaluation Tool (FLEET), a NASA sponsored simulation tool developed at Purdue University. This tool models airline operational decisions via a resource allocation problem and uses a system dynamics type approach to mimic airline economics, their decisions regarding retirement and acquisition of aircraft and evolution of market demand in response to the economic conditions. The development of an aircraft acquisition model for FLEET is a significant contribution of the author. Further, the author conducted a study of various environmental policies using FLEET. Studies introduce constraints on maximum CO2 emissions that the airline can cause, taxes on airlines for excess emissions, and the use of biofuels. The results obtained indicate that implementation of very strict policies that place a heavy penalty on airlines for environmental inefficiency would lead to a drastic decline in market demand served as well as airline profits. For example, to achieve a 50% reduction of CO2 emissions by 2050 from the 2005 levels, the airlines would need to leave as much as 45% of predicted market demand unmet, thereby significantly reducing their profits. Taxing airlines for excess emissions would lead them to use large aircraft for short distance operations to reduce CO2 produced per seat mile, decreasing the total number of flights. Since taxation provides an economic motive for airlines to seek low emissions operations procedures, it can be an effective means of achieving emissions reduction goals. Finally the use of biofuels, under some assumption of biofuel availability and cost, helps reduce emissions without compromising market demand or airline profits.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Golden Gate National Recreation Area

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stephen Schey; Jim Francfort

Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy's Idaho National Laboratory, is the lead laboratory for U.S. Department of Energy Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect data on federal fleet operations as part of the Advanced Vehicle Testing Activity's Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect data to validate the utilization of advanced electric drive vehicle transportation. This report focuses on the Golden Gate National Recreation Area (GGNRA) fleet to identify daily operationalmore » characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies' fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (PHEV) (collectively PEVs) can fulfill the mission requirements. GGNRA identified 182 vehicles in its fleet, which are under the management of the U.S. General Services Administration. Fleet vehicle mission categories are defined in Section 4, and while the GGNRA vehicles conduct many different missions, only two (i.e., support and law enforcement missions) were selected by agency management to be part of this fleet evaluation. The selected vehicles included sedans, trucks, and sport-utility vehicles. This report will show that battery electric vehicles and/or PHEVs are capable of performing the required missions and providing an alternative vehicle for support vehicles and PHEVs provide the same for law enforcement, because each has a sufficient range for individual trips and time is available each day for charging to accommodate multiple trips per day. These charging events could occur at the vehicle home base, high-use work areas, or intermediately along routes that the vehicles frequently travel. Replacement of vehicles in the current fleet would result in significant reductions in the emission of greenhouse gases and petroleum use, while also reducing fuel costs. The San Francisco Bay Area is a leader in the adoption of PEVs in the United States. PEV charging stations, or more appropriately identified as electric vehicle supply equipment, located on the GGNRA facility would be a benefit for both GGNRA fleets and general public use. Fleet drivers and park visitors operating privately owned PEVs benefit by using the charging infrastructure. ITSNA recommends location analysis of the GGNRA site to identify the optimal placement of the electric vehicle supply equipment station. ITSNA recognizes the support of Idaho National Laboratory and ICF International for their efforts to initiate communication with the National Parks Service and GGNRA for participation in the study. ITSNA is pleased to provide this report and is encouraged by the high interest and support from the National Park Service and GGNRA personnel.« less

Evaluation of Gear Condition Indicator Performance on Rotorcraft Fleet

NASA Technical Reports Server (NTRS)

Antolick, Lance J.; Branning, Jeremy S.; Wade, Daniel R.; Dempsey, Paula J.

2010-01-01

The U.S. Army is currently expanding its fleet of Health Usage Monitoring Systems (HUMS) equipped aircraft at significant rates, to now include over 1,000 rotorcraft. Two different on-board HUMS, the Honeywell Modern Signal Processing Unit (MSPU) and the Goodrich Integrated Vehicle Health Management System (IVHMS), are collecting vibration health data on aircraft that include the Apache, Blackhawk, Chinook, and Kiowa Warrior. The objective of this paper is to recommend the most effective gear condition indicators for fleet use based on both a theoretical foundation and field data. Gear diagnostics with better performance will be recommended based on both a theoretical foundation and results of in-fleet use. In order to evaluate the gear condition indicator performance on rotorcraft fleets, results of more than five years of health monitoring for gear faults in the entire HUMS equipped Army helicopter fleet will be presented. More than ten examples of gear faults indicated by the gear CI have been compiled and each reviewed for accuracy. False alarms indications will also be discussed. Performance data from test rigs and seeded fault tests will also be presented. The results of the fleet analysis will be discussed, and a performance metric assigned to each of the competing algorithms. Gear fault diagnostic algorithms that are compliant with ADS-79A will be recommended for future use and development. The performance of gear algorithms used in the commercial units and the effectiveness of the gear CI as a fault identifier will be assessed using the criteria outlined in the standards in ADS-79A-HDBK, an Army handbook that outlines the conversion from Reliability Centered Maintenance to the On-Condition status of Condition Based Maintenance.

Potential Cost Savings with 3D Printing Combined With 3D Imaging and CPLM for Fleet Maintenance and Revitalization

DTIC Science & Technology

2014-05-01

1 Potential Cost Savings with 3D Printing Combined With 3D Imaging and CPLM for Fleet Maintenance and Revitalization David N. Ford...2014 4. TITLE AND SUBTITLE Potential Cost Savings with 3D Printing Combined With 3D Imaging and CPLM for Fleet Maintenance and Revitalization 5a...Manufacturing ( 3D printing ) 2 Research Context Problem: Learning curve savings forecasted in SHIPMAIN maintenance initiative have not materialized

Environmental Assessment KC-46A Depot Maintenance Activation, Tinker Air Force Base, Oklahoma. Volume 1

DTIC Science & Technology

2014-03-01

difficulty in obtaining replacement parts, the Ai r Force has challenges in maintaining tbe KC-135 fleet (USAF 2005). Additionally this fleet has been...aircraft fleet wi ll remain within the Ai r Force inventory. Therefore, only the BNSF Rail Yard and DLA Infill were carried forward for further...surface water from C&D activities. In addition, existing Tinker AFB National Pollutant Discharge Elimination System permit, general permits (multi- sector

Vehicle lightweighting energy use impacts in U.S. light-duty vehicle fleet

DOE Office of Scientific and Technical Information (OSTI.GOV)

Das, Sujit; Graziano, Diane; Upadhyayula, Venkata K. K.

In this article, we estimate the potential energy benefits of lightweighting the light-duty vehicle fleet from both vehicle manufacturing and use perspectives using plausible lightweight vehicle designs involving several alternative lightweight materials, low- and high-end estimates of vehicle manufacturing energy, conventional and alternative powertrains, and two different market penetration scenarios for alternative powertrain light-duty vehicles at the fleet level. Cumulative life cycle energy savings (through 2050) across the nine material scenarios based on the conventional powertrain in the U.S. vehicle fleet range from -29 to 94 billion GJ, with the greatest savings achieved by multi-material vehicles that select different lightweightmore » materials to meet specific design purposes. Lightweighting alternative-powertrain vehicles could produce significant energy savings in the U.S. vehicle fleet, although their improved powertrain efficiencies lessen the energy savings opportunities for lightweighting. A maximum level of cumulative energy savings of lightweighting the U.S. light-duty vehicle through 2050 is estimated to be 66.1billion GJ under the conventional-vehicle dominated business-as-usual penetration scenario.« less

77 FR 59596 - Procurement List; Proposed Additions

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-28

... within the authority of Naval Supply Systems Command (NAVSUP) Fleet Logistics Center in Jacksonville, FL, as aggregated by the Naval Supply Systems Command (NAVSUP) Fleet Logistics Center, Jacksonville, FL...

Pacific Fleet Regional Inventory Stocking Model (PRISM)

DTIC Science & Technology

2003-06-01

Fleet Inventory Management Form ..........................................................................99 19. Master Parts List Input Form...100 20. Master Parts List Update Form...107 26. Master Parts List by APL Report..............................................................................109 27. Master

Alternative Fuels Data Center

Science.gov Websites

Fleet Purchase and Pricing Agreement Requirements The Colorado state fleet and the Colorado Department of Transportation (CDOT) must purchase natural gas vehicles (NGVs) where natural gas fueling is

Barwood CNG Cab Fleet Study: Final Results

DOE Office of Scientific and Technical Information (OSTI.GOV)

Whalen, P.; Kelly, K.; John, M.

1999-05-03

This report describes a fleet study conducted over a 12-month period to evaluate the operation of dedicated compress natural gas (CNG) Ford Crown Victoria sedans in a taxicab fleet. In the study, we assess the performance and reliability of the vehicles and the cost of operating the CNG vehicles compared to gasoline vehicles. The study results reveal that the CNG vehicles operated by this fleet offer both economic and environmental advantages. The total operating costs of the CNG vehicles were about 25% lower than those of the gasoline vehicles. The CNG vehicles performed as well as the gasoline vehicles, andmore » were just as reliable. Barwood representatives and drivers have come to consider the CNG vehicles an asset to their business and to the air quality of the local community.« less

Space transportation architecture: Reliability sensitivities

NASA Technical Reports Server (NTRS)

Williams, A. M.

1992-01-01

A sensitivity analysis is given of the benefits and drawbacks associated with a proposed Earth to orbit vehicle architecture. The architecture represents a fleet of six vehicles (two existing, four proposed) that would be responsible for performing various missions as mandated by NASA and the U.S. Air Force. Each vehicle has a prescribed flight rate per year for a period of 31 years. By exposing this fleet of vehicles to a probabilistic environment where the fleet experiences failures, downtimes, setbacks, etc., the analysis involves determining the resiliency and costs associated with the fleet of specific vehicle/subsystem reliabilities. The resources required were actual observed data on the failures and downtimes associated with existing vehicles, data based on engineering judgement for proposed vehicles, and the development of a sensitivity analysis program.

Autonomous assembly with collision avoidance of a fleet of flexible spacecraft based on disturbance observer

NASA Astrophysics Data System (ADS)

Chen, Ti; Wen, Hao

2018-06-01

This paper presents a distributed control law with disturbance observer for the autonomous assembly of a fleet of flexible spacecraft to construct a large flexible space structure. The fleet of flexible spacecraft is driven to the pre-assembly configuration firstly, and then to the desired assembly configuration. A distributed assembly control law with disturbance observer is proposed by treating the flexible dynamics as disturbances acting on the rigid motion of the flexible spacecraft. Theoretical analysis shows that the control law can actuate the fleet to the desired configuration. Moreover, the collision avoidance between the members is also considered in the process from initial configuration to pre-assembly configuration. Finally, a numerical example is presented to verify the feasibility of proposed mission planning and the effectiveness of control law.

Nonmethane Hydrocarbon Measurements on the North Atlantic Flight Corridor During SONEX

NASA Technical Reports Server (NTRS)

Simpson, I. J.; Sive, B. C.; Blake, D. R.; Blake, N. J.; Chen, T.-Y.; Lopez, J. P.; Sachse, G. W.; Vay, S. A.; Fuelberg, H. E.; Kondo, Y.

1999-01-01

Mixing ratios of nonmethane hydrocarbons (NMHCS) were not enhanced in whole air samples collected within the North Atlantic Flight Corridor (NAFC) during the fall of 1997. The investigation was conducted aboard NASA's DC-8 research aircraft, as part of the Subsonic Assessment-Ozone and Nitrogen Experiment (SONEX). NMHC enhancements were not detected within the general Organized Tracking System (OTS) of the NAFC, nor during two tail-chases of the DC-8's own exhaust. Because positive evidence of aircraft emissions was demonstrated by enhancements in both nitrogen oxides and condensation nuclei during SONEX, the NMHC results suggest that the commercial air traffic fleet operating in the North Atlantic region does not contribute significantly to NMHCs in the NAFC.

Strategic planning for disaster recovery with stochastic last mile distribution

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bent, Russell Whitford; Van Hentenryck, Pascal; Coffrin, Carleton

2010-01-01

This paper considers the single commodity allocation problem (SCAP) for disaster recovery, a fundamental problem faced by all populated areas. SCAPs are complex stochastic optimization problems that combine resource allocation, warehouse routing, and parallel fleet routing. Moreover, these problems must be solved under tight runtime constraints to be practical in real-world disaster situations. This paper formalizes the specification of SCAPs and introduces a novel multi-stage hybrid-optimization algorithm that utilizes the strengths of mixed integer programming, constraint programming, and large neighborhood search. The algorithm was validated on hurricane disaster scenarios generated by Los Alamos National Laboratory using state-of-the-art disaster simulation toolsmore » and is deployed to aid federal organizations in the US.« less

EERE: Alternative Fuels Data Center Home Page

Science.gov Websites

facility safe with a first-of-its-kind CNG Maintenance Facility Modifications Handbook. Find Fleet & Equipment Maintenance Driving Behavior Fleet Rightsizing System Efficiency Locate Stations Search

The Great Green Fleet: The U.S. Navy and Fossil-Fuel Alternatives

DTIC Science & Technology

2011-01-01

Tennessee at Chattanooga. She has served as a member of the Bataan Expeditionary Strike Group and U.S. Joint Forces Com- mand, completing deployments to...excess energy to the civilian grid. Third, by 2012 the Navy is to have developed a “green” strike group, made up of nuclear- powered carriers, hybrid...first strike group of a future “green fleet.” Fourth, by 2015 the Navy is to cut by half the use of petroleum in its fifty-thousand-vehicle fleet of

Long Term Hydrogen Vehicle Fleet Operational Assessment

DTIC Science & Technology

2011-03-21

Economy (mi/kg) Average Fuel Economy (mi/ gge ) 1 26.9 26.8 2 25.0 24.9 3 23.2 23.1 4 22.5 22.4 5 25.7 25.6 6 33.5 33.4 7 31.7 31.6 8 25.4 25.3 9 21.8...Fleet Fuel Economy was 26.2 mi/kg or 26.1 mi/ gge • The fuel economy of the fleet of H2ICEs was comparable to the standard hybrid-electric gasoline

ASTRAL Model. Volume 2: Software Implementation

DTIC Science & Technology

1979-01-01

Commander Fleet Air, Mediterranean Commander, Antisubmarine War Force U.S. Sixth Fleet Commanding Officer FPO New York 09521 1 Fleet Weather Central...Technology, Inc. I Attn: Dr. S. C. Daubin Route 2 North Stonington, Connecticut 06359 Attn: S. Elam 1 I *--4-- I I Ocean Data Systems, Inc. TRACOR, Inc...APPLICATIONS, INC. 8400 Westpark Drive, McLean, Virginia 22101 Telephone 703/821-4300 S 29082-21227 ’Id _9 0 8i•i•F:• • I U CONTENTS Page 1 1 INTRODUCTION

AVTA federal fleet PEV readiness data logging and characterization study for the National Park Service: Grand Canyon National Park

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim; Nienhueser, Ian

This report focuses on the Grand Canyon National Park (GCNP) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively PEVs) can fulfill the mission requirements.

The Use of a Lidar Forward-Looking Turbulence Sensor for Mixed-Compression Inlet Unstart Avoidance and Gross Weight Reduction on a High Speed Civil Transport

NASA Technical Reports Server (NTRS)

Soreide, David; Bogue, Rodney K.; Ehernberger, L. J.; Seidel, Jonathan

1997-01-01

Inlet unstart causes a disturbance akin to severe turbulence for a supersonic commercial airplane. Consequently, the current goal for the frequency of unstarts is a few times per fleet lifetime. For a mixed-compression inlet, there is a tradeoff between propulsion system efficiency and unstart margin. As the unstart margin decreases, propulsion system efficiency increases, but so does the unstart rate. This paper intends to first, quantify that tradeoff for the High Speed Civil Transport (HSCT) and second, to examine the benefits of using a sensor to detect turbulence ahead of the airplane. When the presence of turbulence is known with sufficient lead time to allow the propulsion system to adjust the unstart margin, then inlet un,starts can be minimized while overall efficiency is maximized. The NASA Airborne Coherent Lidar for Advanced In-Flight Measurements program is developing a lidar system to serve as a prototype of the forward-looking sensor. This paper reports on the progress of this development program and its application to the prevention of inlet unstart in a mixed-compression supersonic inlet. Quantified benefits include significantly reduced takeoff gross weight (TOGW), which could increase payload, reduce direct operating costs, or increase range for the HSCT.

The Development of Vocational Vehicle Drive Cycles and Segmentation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Duran, Adam W.; Phillips, Caleb T.; Konan, Arnaud M.

Under a collaborative interagency agreement between the U.S. Environmental Protection Agency and the U.S Department of Energy (DOE), the National Renewable Energy Laboratory (NREL) performed a series of in-depth analyses to characterize the on-road driving behavior including distributions of vehicle speed, idle time, accelerations and decelerations, and other driving metrics of medium- and heavy-duty vocational vehicles operating within the United States. As part of this effort, NREL researchers segmented U.S. medium- and heavy-duty vocational vehicle driving characteristics into three distinct operating groups or clusters using real world drive cycle data collected at 1 Hz and stored in NREL's Fleet DNAmore » database. The Fleet DNA database contains millions of miles of historical real-world drive cycle data captured from medium- and heavy vehicles operating across the United States. The data encompass data from existing DOE activities as well as contributions from valued industry stakeholder participants. For this project, data captured from 913 unique vehicles comprising 16,250 days of operation were drawn from the Fleet DNA database and examined. The Fleet DNA data used as a source for this analysis has been collected from a total of 30 unique fleets/data providers operating across 22 unique geographic locations spread across the United States. This includes locations with topology ranging from the foothills of Denver, Colorado, to the flats of Miami, Florida. The range of fleets, geographic locations, and total number of vehicles analyzed ensures results that include the influence of these factors. While no analysis will be perfect without unlimited resources and data, it is the researchers understanding that the Fleet DNA database is the largest and most thorough publicly accessible vocational vehicle usage database currently in operation. This report includes an introduction to the Fleet DNA database and the data contained within, a presentation of the results of the statistical analysis performed by NREL, review of the logistic model developed to predict cluster membership, and a discussion and detailed summary of the development of the vocational drive cycle weights and representative transient drive cycles for testing and simulation. Additional discussion of known limitations and potential future work are also included in the report content.« less

Mathematical optimization techniques for managing selective catalytic reduction for a fleet of coal-fired power plants

NASA Astrophysics Data System (ADS)

Alanis Pena, Antonio Alejandro

Major commercial electricity generation is done by burning fossil fuels out of which coal-fired power plants produce a substantial quantity of electricity worldwide. The United States has large reserves of coal, and it is cheaply available, making it a good choice for the generation of electricity on a large scale. However, one major problem associated with using coal for combustion is that it produces a group of pollutants known as nitrogen oxides (NO x). NOx are strong oxidizers and contribute to ozone formation and respiratory illness. The Environmental Protection Agency (EPA) regulates the quantity of NOx emitted to the atmosphere in the United States. One technique coal-fired power plants use to reduce NOx emissions is Selective Catalytic Reduction (SCR). SCR uses layers of catalyst that need to be added or changed to maintain the required performance. Power plants do add or change catalyst layers during temporary shutdowns, but it is expensive. However, many companies do not have only one power plant, but instead they can have a fleet of coal-fired power plants. A fleet of power plants can use EPA cap and trade programs to have an outlet NOx emission below the allowances for the fleet. For that reason, the main aim of this research is to develop an SCR management mathematical optimization methods that, with a given set of scheduled outages for a fleet of power plants, minimizes the total cost of the entire fleet of power plants and also maintain outlet NO x below the desired target for the entire fleet. We use a multi commodity network flow problem (MCFP) that creates edges that represent all the SCR catalyst layers for each plant. This MCFP is relaxed because it does not consider average daily NOx constraint, and it is solved by a binary integer program. After that, we add the average daily NOx constraint to the model with a schedule elimination constraint (MCFPwSEC). The MCFPwSEC eliminates, one by one, the solutions that do not satisfy the average daily NOx constraint and the worst NH 3 slip until it finds the solution that satisfies that requirement. We introduce an algorithm called heuristic MCFPwSEC (HMCFPwSEC). When HMCFPwSEC algorithm starts, we calculate the cost of the edges estimating the average NH3 slip level, but after we have a schedule that satisfies the average daily NOx constraint and the worst NH3 slip, we update the cost of the edges with the average NH3 slip for this schedule. We repeat this process until we have the solution. Because HMCFPwSEC does not guarantee optimality, we compare its results with SGO, which is optimal, using computational experiments. The results between both models are very similar, the only important difference is the time to solve each model. Then, a fleet HMCFPwSEC (FHMCFPwSEC) uses HMCFPwSEC to create the SCR management plan for each plant of the fleet, with a discrete NOx emissions value for each plant. FHMCFPwSEC repeats this process with different discrete levels of NOx emissions, for each plant, in order to create a new problem with schedules with different cost and NO x emissions for each plant of the fleet. Finally, FHMCFPwSEC solves this new problem with a binary integer program, in order to satisfy a NO x emission value for the fleet that also minimizes the total cost for the fleet, and using each plant once. FHMCFPwSEC can work with single cut and also with multi-cut methods. Because FHMCFPwSEC does not guarantee optimality, we compare its results with fleet SGO (FSGO) using computational experiments. The results between both models are very similar, the only important difference is the time to solve each model. In the experiments, FHMCFPwSEC multi-cut targeting new layer always uses less time than FSGO.

Sustainable use of flatfish resources: Addressing the credibility crisis in mixed fisheries management

NASA Astrophysics Data System (ADS)

Rijnsdorp, A. D.; Daan, N.; Dekker, W.; Poos, J. J.; Van Densen, W. L. T.

2007-02-01

Many flatfish species are caught in mixed demersal trawl fisheries and managed by Total Allowable Catch (TAC). Despite decades of fisheries management, several major stocks are severely depleted. Using the Common Fisheries Policy (CFP) as an example, the failure of mixed-fisheries management is analysed by focussing on: the management system; the role of science; the role of managers and politicians; the response of fisheries to management. Failure of the CFP management could be ascribed to: incorrect management advice owing to bias in stock assessments; the tendency of politicians to set the TAC well above the recommended level; and non-compliance of the fisheries with the management regulations. We conclude that TAC management, although apparently successful in some single-species fisheries, inevitably leads to unsustainable exploitation of stocks caught in mixed demersal fisheries as it promotes discarding of over-quota catch and misreporting of catches, thereby corrupting the basis of the scientific advice and increasing the risk of stock collapse. This failure in mixed demersal fisheries has resulted in the loss of credibility of both scientists and managers, and has undermined the support of fishermen for management regulations. An approach is developed to convert the TAC system into a system that controls the total allowable effort (TAE). The approach takes account of the differences in catch efficiency between fleets as well as seasonal changes in the distribution of the target species and can also be applied in the recovery plans for rebuilding specific components of the demersal fish community, such as plaice, cod and hake.

Alternative Fuels Data Center: Mass Transit

Science.gov Websites

traveled and fuel used by private vehicles. Vehicle fleet managers, corporate decision makers, and public effective incentives for fleet managers and corporate decision makers to build mass transit ridership

US Navy lithium cell applications

NASA Technical Reports Server (NTRS)

Bowers, F. M.

1978-01-01

Applications of lithium systems that are already in the fleet are discussed. The approach that the Navy is taking in the control of the introduction of lithium batteries into the fleet is also discussed.

U.S. Naval Base, Pearl Harbor, Retail Warehouse, Fleet Landing Halawa, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

U.S. Naval Base, Pearl Harbor, Retail Warehouse, Fleet Landing Halawa, near Kamehameha Highway between Richardson Recreation Center & USS Arizona Memorial Visitor Center, Pearl City, Honolulu County, HI

Fleet management performance monitoring.

DOT National Transportation Integrated Search

2013-05-01

The principle goal of this project was to enhance and expand the analytical modeling methodology previously developed as part of the Fleet Management Criteria: Disposal Points and Utilization Rates project completed in 2010. The enhanced and ex...

CleanFleet final report : executive summary

DOT National Transportation Integrated Search

1995-12-01

CleanFleet, formally known as the South Coast Alternative Fuels Demonstration, : was a comprehensive demonstration of alternative fuel vehicles (AFVs) in daily : commercial service. Between April 1992 and September 1994, five alternative fuels were t...

Navy Operational Planner

DTIC Science & Technology

2015-03-01

wine warfare NCC naval component commander NFC numbered fleet commander NM nautical mile NMP Navy mission planner NOP Navy...principles for naval component commanders ( NCCs ), numbered fleet commanders (NFCs) or joint force maritime component commanders (JFMCCs) and their

78 FR 28625 - American Airlines, a Subsidiary of AMR Corporation, Tulsa International Airport, Fleet Services...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-15

... State of Oklahoma Employment Security Commission requested administrative reconsideration of the... workers, stated ``aircraft maintenance has been outsourced to China'' and that the fleet services clerks...

Sustainable Technologies: Finding Success the Second Time Around

DOE Office of Scientific and Technical Information (OSTI.GOV)

Walkowicz, Kevin

2016-03-03

Presentation provides background on how to identify and quantify improvements for advanced vehicle technology and commercial fleet operations. It gives examples of next generation technology improvements that have been implemented within commercial fleets.

[The head of the medical service must be the person...(To the 70th anniversary of N.G. Ryzhman)].

PubMed

Val'skiĭ, V V; Butikov, V P; Rybakov, S M; Chernikov, O G

2014-09-01

The article is devoted to contribution of major general (rear Admiral. - navy) of medical service Nikolay Grigoryevich Ryzhman (1944-2005), the chief of the medical service of the Northern fleet (1991-1999), to development of naval medicine, who would have turn 70 years this September. The constant analysis, and experience generalization of the medical services of the fleet connections and associations and aspiration to provide fighting capacity for the fleet crew - were a keynote of Ryzhman's activity concerned development and deployment of the new forms and methods of medical support and searching of ways to increase crew efficiency. The implemented methods and forms of organization of the medical support and scientific development of the medical support are used even now in the practical activities of the medical service of the Northern fleet.

Methodology for fleet deployment decisions. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stremel, J.; Matousek, M.

1995-01-01

In today`s more competitive energy market, selecting investment and operating plans for a generating system, specific plants, and major plant components is becoming increasingly critical and complex. As utilities consider off-system sales, the key factor for fleet deployment decisions is no longer simply minimizing revenue requirements. Rather, system-level value dominates. This is a measure that can be difficult to determine in the context of traditional decision making methods. Selecting the best fleet deployment option requires the ability to account for multiple sources of value under uncertain conditions for multiple utility stakeholders. The object of this paper was to develope andmore » test an approach for assessing the system-wide value of alternative fleet deployment decisions. This was done, and the approach was tested at Consolidated Edison and at Central Illinois Public Service Company.« less

Fleet Sizing of Automated Material Handling Using Simulation Approach

NASA Astrophysics Data System (ADS)

Wibisono, Radinal; Ai, The Jin; Ratna Yuniartha, Deny

2018-03-01

Automated material handling tends to be chosen rather than using human power in material handling activity for production floor in manufacturing company. One critical issue in implementing automated material handling is designing phase to ensure that material handling activity more efficient in term of cost spending. Fleet sizing become one of the topic in designing phase. In this research, simulation approach is being used to solve fleet sizing problem in flow shop production to ensure optimum situation. Optimum situation in this research means minimum flow time and maximum capacity in production floor. Simulation approach is being used because flow shop can be modelled into queuing network and inter-arrival time is not following exponential distribution. Therefore, contribution of this research is solving fleet sizing problem with multi objectives in flow shop production using simulation approach with ARENA Software

Energy use and taxation policy in the New Zealand car fleet

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1984-02-01

The report describes the composition of the New Zealand car fleet and the relationship between design factors, fleet composition, vehicle useage and fuel consumption. The indirect energy content of the vehicle and roadway are discussed. Existing and potential Government policy instruments for promoting fuel economy in the car fleet are discussed and evaluated. The report conclusions favor flat rate sales tax on vehicles regardless of engine size together with an appropriate level of petrol tax in preference to taxation that varies with vehicle size or engine capacity. A review of hire purchase regulations is proposed. Prior to publication of thismore » report the Industries Development Commission Plan for the motor vehicle industry was released which proposes changes to the tariff, taxation and credit purchase regime applying to motor vehicles. These changes are summarized.« less

General aviation activity and avionics survey. Annual summary report, CY 1985

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1987-03-01

This report presents the results and a description of the 1985 General Aviation Activity and Avionics Survey. The survey was conducted during 1986 by the FAA to obtain information on the activity and avionics of the United States registered general aviation aircraft fleet, the dominant component of civil aviation in the U.S. The survey was based on a statistically selected sample of about 10.3 percent of the general aviation fleet. A responses rate of 63.7 percent was obtained. Survey results based upon response but are expanded upward to represent the total population. Survey results revealed that during 1985 an estimatedmore » 34.1 million hours of flying time were logged and 88.7 million operations were performed by the 210,654 active general aviation aircraft in the U.S. fleet. The mean annual flight time per aircraft was 158.2 hours. The active aircraft represented about 77.9 percent of the registered general aviation fleet. The report contains breakdowns of these and other statistics by manufacturer/model group, aircraft, state and region of based aircraft, and primary use. Also included are fuel consumption, lifetime airframe hours, avionics, engine hours, and miles flown estimates, as well as tables for detailed analysis of the avionics capabilities of the general aviation fleet. New to the report this year are estimates of the number of landings, IFR hours flown, and the cost and grade of fuel consumed by the GA fleet.« less

Spray combustion experiments and numerical predictions

NASA Technical Reports Server (NTRS)

Mularz, Edward J.; Bulzan, Daniel L.; Chen, Kuo-Huey

1993-01-01

The next generation of commercial aircraft will include turbofan engines with performance significantly better than those in the current fleet. Control of particulate and gaseous emissions will also be an integral part of the engine design criteria. These performance and emission requirements present a technical challenge for the combustor: control of the fuel and air mixing and control of the local stoichiometry will have to be maintained much more rigorously than with combustors in current production. A better understanding of the flow physics of liquid fuel spray combustion is necessary. This paper describes recent experiments on spray combustion where detailed measurements of the spray characteristics were made, including local drop-size distributions and velocities. Also, an advanced combustor CFD code has been under development and predictions from this code are compared with experimental results. Studies such as these will provide information to the advanced combustor designer on fuel spray quality and mixing effectiveness. Validation of new fast, robust, and efficient CFD codes will also enable the combustor designer to use them as additional design tools for optimization of combustor concepts for the next generation of aircraft engines.

Fleet replacement modeling : final report, July 2009.

DOT National Transportation Integrated Search

2009-07-01

This project focused on two interrelated areas in equipment replacement modeling for fleets. The first area was research-oriented and addressed a fundamental assumption in engineering economic replacement modeling that all assets providing a similar ...

41 CFR 101-39.101 - Notice of intention to begin a study.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., will ascertain the possibilities of economies to be derived through the establishment of a fleet... develop data and justification as to the feasibility of establishing a fleet management system. The...

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

This guidebook addresses the primary requirements of the Alternative Fuel Transportation Program to help state and alternative fuel provider fleets comply with the Energy Policy Act via the Standard Compliance option. It also addresses the topics that covered fleets ask about most frequently.

Medium- and Heavy-Duty Vehicles | Transportation Research | NREL

Science.gov Websites

. May 19, 2014 Fleet DNA Tool Provides Real-World "Genetics" for Commercial Fleets Vehicle performance demands of today's commercial vehicles. This clearinghouse of medium- and heavy-duty commercial

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for Department of Veterans Affairs – VA Manhattan Campus

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stephen Schey; Jim Francfort

2014-10-01

This report focuses on the Department of Veterans Affairs, VA Manhattan Campus (VA- Manhattan) fleet to identify the daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support successful introduction of plug-in electric vehicles (PEVs) into the agency’s fleet. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively called PEVs) can fulfill the mission requirements.

Lessons from cross-fleet/cross-airline observations - Evaluating the impact of CRM/LOFT training

NASA Technical Reports Server (NTRS)

Butler, Roy E.

1991-01-01

A review is presented of the crew resource management/line oriented flight training (CRM/LOFT) program to help determine the level of standardization across fleets and airlines in the critical area of evaluating crew behavior and performance. One of the goals of the project is to verify that check airmen and LOFT instructors within organizations are evaluating CRM issues consistently and that differences observed between fleets are not a function of idiosyncracies on the part of observers. Attention is given to the research tools for crew evaluation.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA White Sands Test Facility

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

This report focuses on the NASA White Sands Test Facility (WSTF) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for National Institute of Health

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

2014-11-01

This report focuses on the National Institute of Health (NIH) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for Department of Health and Human Services – ASPR

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Steve; Francfort, Jim

2015-06-01

This report focuses on the Department of Health and Human Services, Assistant Secretary for Preparedness and Response fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agency’s fleet. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.

Naval Postgraduate School Research. Volume 10, Number 2, June 2000

DTIC Science & Technology

2000-06-01

Associate Provost and Dean of Research Dr. David W. Netzer R E S E A R C H N A V A L P O S T G R A D U A T E S C H O O L Introduction The past two...capture during the execution phase of Fleet Battle Experiment Golf (FBE- G ). Fleet Battle Experiment Golf was conducted by Sixth Fleet and the Maritime...in FBE- G . The National Security Telecommunications and Information Systems Security Committee (NSTISSC) and the National Security Agency has certified

Missouri Soybean Association Biodiesel Demonstration Project: Final Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ludwig, Dale; Hamilton, Jill

The Missouri Soybean Association (MSA) and the National Biodiesel Board (NBB) partnered together to implement the MSA Biodiesel Demonstration project under a United States Department of Energy (DOE) grant. The goal of this project was to provide decision makers and fleet managers with information that could lead to the increased use of domestically produced renewable fuels and could reduce the harmful impacts of school bus diesel exhaust on children. This project was initiated in September 2004 and completed in April 2011. The project carried out a broad range of activities organized under four areas: 1. Petroleum and related industry educationmore » program for fuel suppliers; 2. Fleet evaluation program using B20 with a Missouri school district; 3. Outreach and awareness campaign for school district fleet managers; and 4. Support of ongoing B20 Fleet Evaluation Team (FET) data collection efforts with existing school districts. Technical support to the biodiesel industry was also provided through NBB’s Troubleshooting Hotline. The hotline program was established in 2008 to troubleshoot fuel quality issues and help facilitate smooth implementation of the RFS and is described in greater detail under Milestone A.1 - Promote Instruction and Guidance on Best Practices. As a result of this project’s efforts, MSA and NBB were able to successfully reach out to and support a broad spectrum of biodiesel users in Missouri and New England. The MSA Biodiesel Demonstration was funded through a FY2004 Renewable Energy Resources Congressional earmark. The initial focus of this project was to test and evaluate biodiesel blends coupled with diesel oxidation catalysts as an emissions reduction technology for school bus fleets in the United States. The project was designed to verify emissions reductions using Environmental Protection Agency (EPA) protocols, then document – with school bus fleet experience – the viability of utilizing B20 blends. The fleet experience was expected to support ongoing industry efforts to collect existing data and to increase awareness and knowledge among school district fleet managers. However, three years into the project, the original intent of the engine verification was no longer deemed by equipment manufacturers to be of sufficient economic interest to enter into a partnership. In response, MSA requested a project extension and re-scope to eliminate the aftermarket equipment verification and replace it with a petroleum education program. The revised project maintained four task areas with the following modifications. The first component was directed at increasing national compliance with newly initiated state level fuel blend mandates through a distributor education program. Component two was modified to eliminate the verification element and, instead, document operational data from biodiesel use in a district school bus fleet. Components three and four were unchanged and maintained their purpose of expanding upon the existing knowledge base of biodiesel use in school bus fleets.« less

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Fort Vancouver National Historic Site

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stephen Schey; Jim Francfort

Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy’s Idaho National Laboratory, is the lead laboratory for the U.S. Department of Energy’s Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect data to validate the use of advanced electric drive vehicle transportation. This report focuses on the Fort Vancouver National Historic Site (FVNHS) fleet to identify dailymore » operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of electric vehicles (EVs) into the agencies’ fleet. Individual observations of the selected vehicles provided the basis for recommendations related to EV adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles) could fulfill the mission requirements. FVNHS identified three vehicles in its fleet for consideration. While the FVNHS vehicles conduct many different missions, only two (i.e., support and pool missions) were selected by agency management to be part of this fleet evaluation. The logged vehicles included a pickup truck and a minivan. This report will show that BEVs and PHEVs are capable of performing the required missions and providing an alternative vehicle for both mission categories, because each has sufficient range for individual trips and time available each day for charging to accommodate multiple trips per day. These charging events could occur at the vehicle’s home base, high-use work areas, or in intermediate areas along routes that the vehicles frequently travel. Replacement of vehicles in the current fleet would result in significant reductions in emission of greenhouse gases and petroleum use, while also reducing fuel costs. The Vancouver, Washington area and neighboring Portland, Oregon are leaders in adoption of PEVs in the United States1. PEV charging stations, or more appropriately identified as electric vehicle supply equipment, located on the FVNHS facility would be a benefit for both FVNHS fleets and general public use. Fleet drivers and park visitors operating privately owned plug-in electric vehicles benefit by using the charging infrastructure. ITSNA recommends location analysis of the FVNHS site to identify the optimal station placement for electric vehicle supply equipment. ITSNA recognizes the support of Idaho National Laboratory and ICF International for their efforts to initiate communication with the National Parks Service and FVNHS for participation in this study. ITSNA is pleased to provide this report and is encouraged by the high interest and support from the National Park Service and FVNHS personnel« less

Greenhouse gas implications of fleet electrification based on big data-informed individual travel patterns.

PubMed

Cai, Hua; Xu, Ming

2013-08-20

Environmental implications of fleet electrification highly depend on the adoption and utilization of electric vehicles at the individual level. Past research has been constrained by using aggregated data to assume all vehicles with the same travel pattern as the aggregated average. This neglects the inherent heterogeneity of individual travel behaviors and may lead to unrealistic estimation of environmental impacts of fleet electrification. Using "big data" mining techniques, this research examines real-time vehicle trajectory data for 10,375 taxis in Beijing in one week to characterize the travel patterns of individual taxis. We then evaluate the impact of adopting plug-in hybrid electric vehicles (PHEV) in the taxi fleet on life cycle greenhouse gas emissions based on the characterized individual travel patterns. The results indicate that 1) the largest gasoline displacement (1.1 million gallons per year) can be achieved by adopting PHEVs with modest electric range (approximately 80 miles) with current battery cost, limited public charging infrastructure, and no government subsidy; 2) reducing battery cost has the largest impact on increasing the electrification rate of vehicle mileage traveled (VMT), thus increasing gasoline displacement, followed by diversified charging opportunities; 3) government subsidies can be more effective to increase the VMT electrification rate and gasoline displacement if targeted to PHEVs with modest electric ranges (80 to 120 miles); and 4) while taxi fleet electrification can increase greenhouse gas emissions by up to 115 kiloton CO2-eq per year with the current grid in Beijing, emission reduction of up to 36.5 kiloton CO2-eq per year can be achieved if the fuel cycle emission factor of electricity can be reduced to 168.7 g/km. Although the results are based on a specific public fleet, this study demonstrates the benefit of using large-scale individual-based trajectory data (big data) to better understand environmental implications of fleet electrification and inform better decision making.

Major Impact of Fleet Renewal Over Airports Located in the Most Important Region of Brazil

NASA Technical Reports Server (NTRS)

Maters, Rafael Waltz; deRoodeTorres, Roberta; Santo, Respicio A. Espirito, Jr.

2003-01-01

The present article discusses and analyses the major impacts of the Brazilian carriers fleet renewal regarding Brazilian airport infrastructure in the most important region of the country, the Southeast (SE). A brief historical overview of the country's airline fleet will be presented, demonstrating the need for its renewal (m fact, Brazilian carriers started a major fleet renewal program m the last five years), while analyzing the periods in which a new breed of aircraft was put into service by the major carriers operating in the SE region. The trend of operating the classic regional jets plus the forthcoming entry into service of the "large regional jets" (LRJ, 70-115 seaters) in several point-to-point routes are presented along with the country's carriers" reality of operating these former aircraft in several high-capacity and medium-range routes. The article will focus on the ability of four of the major Southeast's airports to cope with the fleet modernization, mainly due to the fact that the region studied is the most socioeconomic developed, by far, with the largest demand for air transportation, thus making the impacts much more perceptible for the communities and the airport management involved. With the emergence of these impacts, several new projects and investments are being discussed and pushed forward, despite budgetary constrains being a reality in almost every Brazilian city, even in the SE region. In view of this, the paper presents how the general planning could be carried out in order to adapt the airports' infrastructures in function of the proposed (and in some cases, necessary) fleet renewal. Ultimately, we will present the present picture and two future scenarios m order to determine the level of service in the existent passenger terminal facilities in the wake of the possible operation of several new aircraft. Keywords: Airline fleet planning, Airport planning, Regional development, Regional Jets.

FleetForward evaluation : final report

DOT National Transportation Integrated Search

2000-10-01

This document is the final report for the evaluation of the I-95 Corridor Coalitions FleetForward operational test. The objective of this test was to evaluate the usefulness of traffic flow data to motor carrier operations. Cambridge Systematics, in ...

DOE Office of Scientific and Technical Information (OSTI.GOV)

This annual report of the Alternative Fuel Transportation Program, which ensures compliance with DOE regulations covering state government and alternative fuel provider fleets pursuant to the Energy Policy Act of 1992 (EPAct), as amended, provides fleet compliance results for manufacturing year 2014 / fiscal year 2015.

CleanFleet final report. Volume 1, summary

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The demonstration consisted of 111 package delivery vans operating on five alternative fuels and the con...

75 FR 16229 - Urbanized Area Formula Program: Notice of Final Circular

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-31

... revision. A. Chapter I--Introduction and Background Chapter I of the revised circular is the introductory... comprehensive fleet age and condition statistics are necessary for FTA to estimate fleet condition on a national...

Fleet Assignment Using Collective Intelligence

NASA Technical Reports Server (NTRS)

Antoine, Nicolas E.; Bieniawski, Stefan R.; Kroo, Ilan M.; Wolpert, David H.

2004-01-01

Product distribution theory is a new collective intelligence-based framework for analyzing and controlling distributed systems. Its usefulness in distributed stochastic optimization is illustrated here through an airline fleet assignment problem. This problem involves the allocation of aircraft to a set of flights legs in order to meet passenger demand, while satisfying a variety of linear and non-linear constraints. Over the course of the day, the routing of each aircraft is determined in order to minimize the number of required flights for a given fleet. The associated flow continuity and aircraft count constraints have led researchers to focus on obtaining quasi-optimal solutions, especially at larger scales. In this paper, the authors propose the application of this new stochastic optimization algorithm to a non-linear objective cold start fleet assignment problem. Results show that the optimizer can successfully solve such highly-constrained problems (130 variables, 184 constraints).

Transportation Electrification Beyond Light Duty: Technology and Market Assessment

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tartaglia, Katie; Birky, Alicia; Laughlin, Michael

Commercial fleets form the backbone of the nation’s economy, getting people and the things they need to the places they need to go and performing services necessary to keep public and private physical infrastructure in working order. Commercial fleets include a wide range of vehicle and equipment types, typical uses, and sizes, and involve millions of on-road and offroad vehicles. This diversity means there is no single solution to the challenges these vehicles pose for reducing petroleum dependence, impact on air quality, and emission of greenhouse gases. This document focuses on electrification of government, commercial, and industrial fleets. These fleetsmore » have been divided into three market segments based on equipment use: service fleets, goods movement, and people movement. In particular, it addresses highway vehicles not used for personal transport; non-highway modes, including air, rail, and water; and non-road equipment used directly or in support of these uses.« less

Interannual Variability of Fisheries Economic Returns and Energy Ratios Is Mostly Explained by Gear Type

PubMed Central

Trenkel, Verena M.; Daurès, Fabienne; Rochet, Marie-Joëlle; Lorance, Pascal

2013-01-01

According to portfolio theory applied to fisheries management, economic returns are stabilised by harvesting in a portfolio stocks of species whose returns are negatively correlated and for which the portfolio economic return variance is smaller than the sum of stock specific return variances. Also, variability is expected to decrease with portfolio width. Using a range of indicators, these predictions were tested for the French fishing fleets in the Bay of Biscay (Northeast Atlantic) during the period 2001–2009. For this, vessels were grouped into eight fishing fleets based on the gears used and exploited species were grouped into five functional groups. The portfolio width of fleets ranged from 1–3 functional groups, or 4–19 species. Economic fleet returns (sale revenues minus fishing costs) varied strongly between years; the interannual variability was independent of portfolio width (species or functional groups). Energy ratio expressed by the ratio between fuel energy used for fishing and energy contained in landings varied from 0.3 for purse seines to 9.7 for trawlers using bottom trawls alone or in combination with pelagic trawls independent of portfolio width. Interannual variability in total sale revenues was larger than the sum of species specific sales revenue variability, except for fleets using hooks and pelagic trawlers; it increased with the number of species exploited. In conclusion, the interannual variability of economic returns or energy ratios of French fisheries in the Bay of Biscay did not decrease with the number of species or functional groups exploited, though it varied between fleets. PMID:23922951

CleanFleet final report. Volume 4, fuel economy

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The demonstration consisted of 111 package delivery vans operating on five alternative fuels and the con...

Uncertainties in Estimates of Fleet Average Fuel Economy : A Statistical Evaluation

DOT National Transportation Integrated Search

1977-01-01

Research was performed to assess the current Federal procedure for estimating the average fuel economy of each automobile manufacturer's new car fleet. Test vehicle selection and fuel economy estimation methods were characterized statistically and so...

CleanFleet final report. Volume 6, occupational hygiene

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The demonstration consisted of 111 package delivery vans operating on five alternative fuels and the con...

Alternative Fuels Data Center: Illinois Transportation Data for Alternative

Science.gov Websites

Version More Illinois Videos on YouTube Video thumbnail for Alpha Baking Company Augments Its Fleet With Propane Delivery Trucks Alpha Baking Company Augments Its Fleet With Propane Delivery Trucks Nov. 2, 2013

Coordination of Pupil and Non-Pupil Transportation.

DOT National Transportation Integrated Search

1982-03-31

At present, home-to-school student transportation and general public transit services are provided almost entirely by separate vehicle fleets. The fact that both of these fleets are not fully utilized throughout the day indicates that there may be th...

CleanFleet final report. Volume 5, employee attitude assessment

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The demonstration consisted of 111 package delivery vans operating on five alternative fuels and the con...

Electric vehicle fleet implications and analysis : final research project report.

DOT National Transportation Integrated Search

2016-11-01

The objective of this project was to evaluate the implementation and effectiveness of : electric vehicles (EVs) used in fleet operations. The study focuses on Battery-Electric : Vehicles (BEVs) and Plug-In Hybrid Electric Vehicles (PHEVs); collective...

ITS Technologies in Military Wheeled Tactical Vehicles: Status Quo and the Future

DOE Office of Scientific and Technical Information (OSTI.GOV)

Knee, H.E.

2001-07-02

The U.S. Army operates and maintains the largest trucking fleet in the United States. Its fleet consists of over 246,000 trucks, and it is responsible for buying and developing trucks for all branches of the armed forces. The Army's tactical wheeled vehicle fleet is the logistical backbone of the Army, and annually, the fleet logs about 823 million miles. The fleet consists of a number of types of vehicles. They include eight different families of trucks from the High Mobility Multi-Purpose Wheeled Vehicles to M900 series line haul tractors and special bodies. The average age of all the trucks withinmore » the Army fleet is 15 years, and very few have more than traditional driving instrumentation on-board. Over the past decade, the Department of Transportation's (DOT's) Intelligent Transportation Systems (ITS) Program has conducted research and deployment activities in a number of areas including in-vehicle systems, communication and telematics technologies. Many current model passenger vehicles have demonstrated the assimilation of these technologies to enhance safety and trip quality. Commercial vehicles are also demonstrating many new electronic devices that are assisting in making them safer and more efficient. Moreover, a plethora of new technologies are about to be introduced to drivers that promise greater safety, enhanced efficiency, congestion avoidance, fuel usage reduction, and enhanced trip quality. The U.S. Army has special needs with regard to fleet management, logistics, sustainability, reliability, survivability, and fuel consumption that goes beyond similar requirements within the private industry. In order to effectively apply emerging ITS technologies to the special needs of the U.S. Army, planning for the conduct of the Army's Vehicle Intelligence Program (AVIP) has now commenced. The AVIP will be focused on the conduct of research that: (1) will apply ITS technologies to the special needs of the Army, and (2) will conduct research for special needs wi th regard to vehicle control, driver assistance, integration of vehicle intelligence and robotic technologies, managing effectively the information flow to drivers, enhanced logistics capabilities and sustainability of the Army's fleet during battlefield conditions. This paper will highlight the special needs of the Army, briefly describe two programs, which are embracing ITS technologies to a limited extent, will outline the AVIP, and will provide some insight into future Army vehicle intelligence efforts.« less

Nonmethane hydrocarbon measurements in the North Atlantic Flight Corridor during the Subsonic Assessment Ozone and Nitrogen Oxide Experiment

NASA Astrophysics Data System (ADS)

Simpson, I. J.; Sive, B. C.; Blake, D. R.; Blake, N. J.; Chen, T.-Y.; Lopez, J. P.; Anderson, B. E.; Sachse, G. W.; Vay, S. A.; Fuelberg, H. E.; Kondo, Y.; Thompson, A. M.; Rowland, F. S.

2000-02-01

Mixing ratios of nonmethane hydrocarbons (NMHCs) were not enhanced in whole air samples collected within the North Atlantic Flight Corridor (NAFC) during the fall of 1997. The investigation was conducted aboard NASA's DC-8 research aircraft, as part of the Subsonic Assessment (SASS) Ozone and Nitrogen Oxide Experiment (SONEX). NMHC enhancements were not detected within the general organized tracking system of the NAFC, nor during two tail chases of the DC-8's own exhaust. Because positive evidence of aircraft emissions was demonstrated by enhancements in both nitrogen oxides and condensation nuclei during SONEX, the NMHC results suggest that the commercial air traffic fleet operating in the North Atlantic region does not contribute at all or contributes negligibly to NMHCs in the NAFC.

CleanFleet final report. Volume 3, vehicle maintenance and durability

DOT National Transportation Integrated Search

1995-12-01

The South Coast Alternative Fuels Demonstration, called CleanFleet, was conducted in the Los Angeles area from April 1992 through September 1994. The demonstration consisted of 111 package delivery vans operating on five alternative fuels and the con...

10 CFR 490.200 - Purpose and scope.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 10 Energy 3 2013-01-01 2013-01-01 false Purpose and scope. 490.200 Section 490.200 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ALTERNATIVE FUEL TRANSPORTATION PROGRAM Mandatory State Fleet... duty motor vehicles acquired for State fleets be alternative fueled vehicles. ...

10 CFR 490.200 - Purpose and scope.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 10 Energy 3 2014-01-01 2014-01-01 false Purpose and scope. 490.200 Section 490.200 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ALTERNATIVE FUEL TRANSPORTATION PROGRAM Mandatory State Fleet... duty motor vehicles acquired for State fleets be alternative fueled vehicles. ...

10 CFR 490.200 - Purpose and scope.

Code of Federal Regulations, 2012 CFR

2012-01-01

... 10 Energy 3 2012-01-01 2012-01-01 false Purpose and scope. 490.200 Section 490.200 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ALTERNATIVE FUEL TRANSPORTATION PROGRAM Mandatory State Fleet... duty motor vehicles acquired for State fleets be alternative fueled vehicles. ...

10 CFR 490.200 - Purpose and scope.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 10 Energy 3 2011-01-01 2011-01-01 false Purpose and scope. 490.200 Section 490.200 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ALTERNATIVE FUEL TRANSPORTATION PROGRAM Mandatory State Fleet... duty motor vehicles acquired for State fleets be alternative fueled vehicles. ...

10 CFR 490.200 - Purpose and scope.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 10 Energy 3 2010-01-01 2010-01-01 false Purpose and scope. 490.200 Section 490.200 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ALTERNATIVE FUEL TRANSPORTATION PROGRAM Mandatory State Fleet... duty motor vehicles acquired for State fleets be alternative fueled vehicles. ...

Mechanical properties of tank car steels retired from the fleet

DOT National Transportation Integrated Search

2008-08-31

As a consequence of several recent tank car accidents, the structural integrity of railroad tank cars has come under greater scrutiny, especially the older portion of the fleet fabricated prior to steel normalization requirements. The purpose of this...

Forecasting Trade and the Merchant Fleet.

DOT National Transportation Integrated Search

1987-04-01

This report presents the results of an effort to develop a forecast of the ships required for U.S. oceanborne foreign trade. The ability to accurately identify trends that affect the fleet can provide important information to the U.S. maritime indust...

41 CFR 101-39.400 - General.

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET... responsible for the operation of General Services Administration (GSA) Interagency Fleet Management System... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true General. 101-39.400...

Converted vessel swells Exxon fleet

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1978-06-19

Newport News Shipbuilding and Drydock Co. has converted a tug/barge unit to a tanker with a 27,240 dwt displacement. The ship increases the ocean fleet of Exxon Co. U.S.A. to 18 vessels. Special mooring and cargo-handling systems are used.

33 CFR 138.90 - Individual and Fleet Certificates.

Code of Federal Regulations, 2014 CFR

2014-07-01

... (CONTINUED) MARINE POLLUTION FINANCIAL RESPONSIBILITY AND COMPENSATION FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS) AND OPA 90 LIMITS OF LIABILITY (VESSELS AND DEEPWATER PORTS) Financial Responsibility for Water Pollution (Vessels) § 138.90 Individual and Fleet Certificates. (a) The Director, NPFC...

33 CFR 138.90 - Individual and Fleet Certificates.

Code of Federal Regulations, 2012 CFR

2012-07-01

... (CONTINUED) MARINE POLLUTION FINANCIAL RESPONSIBILITY AND COMPENSATION FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS) AND OPA 90 LIMITS OF LIABILITY (VESSELS AND DEEPWATER PORTS) Financial Responsibility for Water Pollution (Vessels) § 138.90 Individual and Fleet Certificates. (a) The Director, NPFC...

33 CFR 138.90 - Individual and Fleet Certificates.

Code of Federal Regulations, 2013 CFR

2013-07-01

... (CONTINUED) MARINE POLLUTION FINANCIAL RESPONSIBILITY AND COMPENSATION FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS) AND OPA 90 LIMITS OF LIABILITY (VESSELS AND DEEPWATER PORTS) Financial Responsibility for Water Pollution (Vessels) § 138.90 Individual and Fleet Certificates. (a) The Director, NPFC...

33 CFR 138.90 - Individual and Fleet Certificates.

Code of Federal Regulations, 2011 CFR

2011-07-01

... (CONTINUED) MARINE POLLUTION FINANCIAL RESPONSIBILITY AND COMPENSATION FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS) AND OPA 90 LIMITS OF LIABILITY (VESSELS AND DEEPWATER PORTS) Financial Responsibility for Water Pollution (Vessels) § 138.90 Individual and Fleet Certificates. (a) The Director, NPFC...

77 FR 44139 - Drawbridge Operation Regulation; Sacramento River, Sacramento, CA

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-27

... Sacramento, CA. The deviation is necessary to allow the community to participate in the Fleet Feet Event, Run... September 9, 2012 to allow the community to participate in the Fleet Feet Event, Run To Remember 10K. This...

Report: EPA’s Fleet Management Program Needs Improvement

EPA Pesticide Factsheets

Report #15-P-0001, October 6, 2014. If oversight of the EPA’s fleet is not improved, the $6 million-per-year program could be ineffective and inefficient in supporting the agency’s mission and reporting data to the federal system.

Strategic plan for the FleetForward evaluation : technical memorandum

DOT National Transportation Integrated Search

1999-04-01

This document is the final report for the evaluation of the I-95 Corridor Coalitions FleetForward operational test. The objective of this test was to evaluate the usefulness of traffic flow data to motor carrier operations. Cambridge Systematics, in ...

Formation of optimal construction fleet composition

NASA Astrophysics Data System (ADS)

Tuskaeva, Zalina

2017-10-01

Machinery supply and its rational use in construction processes considerably determine the final product of construction organizations. Therefore, the problem of defining the type size composition of the construction fleet as one of the lowest material-intensive productions, is of a particular importance.

Idle reduction assessment for the New York State Department of Transportation region 4 fleet.

DOT National Transportation Integrated Search

2015-03-01

Energetics Incorporated conducted a study to evaluate the operational, economic, and environmental impacts of advanced technologies to reduce idling in : the New York State Department of Transportation (NYSDOT) Region 4 fleet without compromising fun...

Fleet Compliance Annual Report: Model Year 2015, Fiscal Year 2016

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

The U.S. Department of Energy (DOE) regulates covered state government and alternative fuel provider fleets, pursuant to the Energy Policy Act of 1992 (EPAct), as amended. This report details compliance for model year 2015, fiscal year 2016.

33 CFR 138.90 - Individual and Fleet Certificates.

Code of Federal Regulations, 2010 CFR

2010-07-01

... (CONTINUED) MARINE POLLUTION FINANCIAL RESPONSIBILITY AND COMPENSATION FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS) AND OPA 90 LIMITS OF LIABILITY (VESSELS AND DEEPWATER PORTS) Financial Responsibility for Water Pollution (Vessels) § 138.90 Individual and Fleet Certificates. (a) The Director, NPFC...

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for Department of Veterans Affairs. James J. Peters VA Medical Center, Bronx, NY

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

This report focuses on the Department of Veterans Affairs, James J. Peters VA Medical Center (VA - Bronx) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.

Navy nurse anesthetists at Fleet Hospital Five: the Desert Shield/Storm experience.

PubMed

Hrezo, Richard J

2003-06-01

In 1990, the United States Navy deployed its first operational fleet hospital: "Fleet Hospital Five" in support of Operation Desert Shield/Storm. Within 2 weeks of notification, the 900 medical providers assigned to this medical facility, which was capable of providing major trauma surgery and critical care, were on their way to Al Jabayl, Saudi Arabia. This article discusses the unique characteristics of this facility and introduces the crucial role that nurse anesthetists play. The article also introduces several innovative ideas that were developed and tested to expand the capabilities of the hospital.

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Sleeping Bear Dunes National Lakeshore

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

This report focuses on the Sleeping Bear Dunes National Lakeshore (SLBE) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements.

Aircraft Emission Inventories Projected in Year 2015 for a High Speed Civil Transport (HSCT) Universal Airline Network

NASA Technical Reports Server (NTRS)

Baughcum, Steven L.; Henderson, Stephen C.

1995-01-01

This report describes the development of a three-dimensional database of aircraft fuel burn and emissions (fuel burned, NOx, CO, and hydrocarbons) from projected fleets of high speed civil transports (HSCT's) on a universal airline network.Inventories for 500 and 1000 HSCT fleets, as well as the concurrent subsonic fleets, were calculated. The objective of this work was to evaluate the changes in geographical distribution of the HSCT emissions as the fleet size grew from 500 to 1000 HSCT's. For this work, a new expanded HSCT network was used and flights projected using a market penetration analysis rather than assuming equal penetration as was done in the earlier studies. Emission inventories on this network were calculated for both Mach 2.0 and Mach 2.4 HSCT fleets with NOx cruise emission indices of approximately 5 and 15 grams NOx/kg fuel. These emissions inventories are available for use by atmospheric scientists conducting the Atmospheric Effects of Stratospheric Aircraft (AESA) modeling studies. Fuel burned and emissions of nitrogen oxides (NOx as NO2), carbon monoxide, and hydrocarbons have been calculated on a 1 degree latitude x 1 degree longitude x 1 kilometer attitude grid and delivered to NASA as electronic files.

General aviation activity and avionics survey. Annual report for CY81

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schwenk, J.C.; Carter, P.W.

1982-12-01

This report presents the results and a description of the 1981 General Aviation Activity and Avionics Survey. The survey was conducted during 1982 by the FAA to obtain information on the activity and avionics of the United States registered general aviation aircraft fleet, the dominant component of civil aviation in the U.S. The survey was based on a statistically selected sample of about 8.9 percent of the general aviation fleet and obtained a response rate of 61 percent. Survey results are based upon response but are expanded upward to represent the total population. Survey results revealed that during 1981 anmore » estimated 40.7 million hours of flying time were logged by the 213,226 active general aviation aircraft in the U.S. fleet, yielding a mean annual flight time per aircraft of 188.1 hours. The active aircraft represented about 83 percent of the registered general aviation fleet. The report contains breakdowns of these and other statistics by manufacturer/model group, aircraft type, state and region of based aircraft, and primary use. Also included are fuel consumption, lifetime airframe hours, avionics, and engine hours estimates. In addition, tables are included for detailed analysis of the avionics capabilities of GA fleet.« less

New Trends in Robotics for Agriculture: Integration and Assessment of a Real Fleet of Robots

PubMed Central

Gonzalez-de-Soto, Mariano; Pajares, Gonzalo

2014-01-01

Computer-based sensors and actuators such as global positioning systems, machine vision, and laser-based sensors have progressively been incorporated into mobile robots with the aim of configuring autonomous systems capable of shifting operator activities in agricultural tasks. However, the incorporation of many electronic systems into a robot impairs its reliability and increases its cost. Hardware minimization, as well as software minimization and ease of integration, is essential to obtain feasible robotic systems. A step forward in the application of automatic equipment in agriculture is the use of fleets of robots, in which a number of specialized robots collaborate to accomplish one or several agricultural tasks. This paper strives to develop a system architecture for both individual robots and robots working in fleets to improve reliability, decrease complexity and costs, and permit the integration of software from different developers. Several solutions are studied, from a fully distributed to a whole integrated architecture in which a central computer runs all processes. This work also studies diverse topologies for controlling fleets of robots and advances other prospective topologies. The architecture presented in this paper is being successfully applied in the RHEA fleet, which comprises three ground mobile units based on a commercial tractor chassis. PMID:25143976

Development of Hot Exhaust Emission Factors for Iranian-Made Euro-2 Certified Light-Duty Vehicles.

PubMed

Banitalebi, Ehsan; Hosseini, Vahid

2016-01-05

Emission factors (EFs) are fundamental, necessary data for air pollution research and scenario implementation. With the vision of generating national EFs of the Iranian transportation system, a portable emission measurement system (PEMS) was used to develop the basic EFs for a statistically significant sample of Iranian gasoline-fueled privately owned light duty vehicles (LDVs) operated in Tehran. A smaller sample size of the same fleet was examined by chassis dynamometer (CD) bag emission measurement tests to quantify the systematic differences between the PEMS and CD methods. The selected fleet was tested over four different routes of uphill highways, flat highways, uphill urban streets, and flat urban streets. Real driving emissions (RDEs) and fuel consumption (FC) rates were calculated by weighted averaging of the results from each route. The activity of the fleet over each route type was assumed as a weighting factor. The activity data were obtained from a Tehran traffic model. The RDEs of the selected fleet were considerably higher than the certified emission levels of all vehicles. Differences between Tehran real driving cycles and the New European Driving Cycle (NEDC) was attributed to the lower loading of NEDC. A table of EFs based on RDEs was developed for the sample fleet.

Fatal accidents in the Icelandic fishing fleet 1980-2005.

PubMed

Petursdottir, Gudrun; Hjoervar, Tryggvi; Snorrason, Hilmar

2007-01-01

The paper describes how the Icelandic fleet increased from 1980 to 2005, as well as the number of fishermen employed in the various sections of the fleet. All categories of the fleet have increased considerably in tonnage, while the number of fishermen has declined. At the same time the catch per man-year at sea has increased, rendering the Icelandic fisheries among the most efficient in the world in terms of catch and value per manpower. The number of fatalities in the Icelandic fisheries has declined steadily in this period. In absolute numbers these accidents are most common on decked vessels under 45m, but when weighed against man-years, fishermen on open boats are in greatest danger of losing their lives. The most common cause of fatalities is foundering of the vessel, which may cause multiple fatalities, then is man-over-board, followed by drowning in harbour and miscellaneous accidents. The reduction in the number of fatal accidents at sea may have several reasons. Mandatory safety and survival training of all fishermen, improved working conditions at sea, better telecommunications, constant VMS surveillance and a 24hr availability of airborne rescue teams have all helped to reduce fatalities in the Icelandic fishing fleet from 1980 until 2005.

Multi-objective decision-making model based on CBM for an aircraft fleet

NASA Astrophysics Data System (ADS)

Luo, Bin; Lin, Lin

2018-04-01

Modern production management patterns, in which multi-unit (e.g., a fleet of aircrafts) are managed in a holistic manner, have brought new challenges for multi-unit maintenance decision making. To schedule a good maintenance plan, not only does the individual machine maintenance have to be considered, but also the maintenance of the other individuals have to be taken into account. Since most condition-based maintenance researches for aircraft focused on solely reducing maintenance cost or maximizing the availability of single aircraft, as well as considering that seldom researches concentrated on both the two objectives: minimizing cost and maximizing the availability of a fleet (total number of available aircraft in fleet), a multi-objective decision-making model based on condition-based maintenance concentrated both on the above two objectives is established. Furthermore, in consideration of the decision maker may prefer providing the final optimal result in the form of discrete intervals instead of a set of points (non-dominated solutions) in real decision-making problem, a novel multi-objective optimization method based on support vector regression is proposed to solve the above multi-objective decision-making model. Finally, a case study regarding a fleet is conducted, with the results proving that the approach efficiently generates outcomes that meet the schedule requirements.

New trends in robotics for agriculture: integration and assessment of a real fleet of robots.

PubMed

Emmi, Luis; Gonzalez-de-Soto, Mariano; Pajares, Gonzalo; Gonzalez-de-Santos, Pablo

2014-01-01

Computer-based sensors and actuators such as global positioning systems, machine vision, and laser-based sensors have progressively been incorporated into mobile robots with the aim of configuring autonomous systems capable of shifting operator activities in agricultural tasks. However, the incorporation of many electronic systems into a robot impairs its reliability and increases its cost. Hardware minimization, as well as software minimization and ease of integration, is essential to obtain feasible robotic systems. A step forward in the application of automatic equipment in agriculture is the use of fleets of robots, in which a number of specialized robots collaborate to accomplish one or several agricultural tasks. This paper strives to develop a system architecture for both individual robots and robots working in fleets to improve reliability, decrease complexity and costs, and permit the integration of software from different developers. Several solutions are studied, from a fully distributed to a whole integrated architecture in which a central computer runs all processes. This work also studies diverse topologies for controlling fleets of robots and advances other prospective topologies. The architecture presented in this paper is being successfully applied in the RHEA fleet, which comprises three ground mobile units based on a commercial tractor chassis.

Using fleets of electric-drive vehicles for grid support

NASA Astrophysics Data System (ADS)

Tomić, Jasna; Kempton, Willett

Electric-drive vehicles can provide power to the electric grid when they are parked (vehicle-to-grid power). We evaluated the economic potential of two utility-owned fleets of battery-electric vehicles to provide power for a specific electricity market, regulation, in four US regional regulation services markets. The two battery-electric fleet cases are: (a) 100 Th!nk City vehicle and (b) 252 Toyota RAV4. Important variables are: (a) the market value of regulation services, (b) the power capacity (kW) of the electrical connections and wiring, and (c) the energy capacity (kWh) of the vehicle's battery. With a few exceptions when the annual market value of regulation was low, we find that vehicle-to-grid power for regulation services is profitable across all four markets analyzed. Assuming now more than current Level 2 charging infrastructure (6.6 kW) the annual net profit for the Th!nk City fleet is from US 7000 to 70,000 providing regulation down only. For the RAV4 fleet the annual net profit ranges from US 24,000 to 260,000 providing regulation down and up. Vehicle-to-grid power could provide a significant revenue stream that would improve the economics of grid-connected electric-drive vehicles and further encourage their adoption. It would also improve the stability of the electrical grid.

High-Speed Civil Transport Forecast: Simulated Airlines Scenarios for Mach 1.6, Mach 2.0, and Mach 2.4 Configurations for Year 2015

NASA Technical Reports Server (NTRS)

Metwally, Munir

1996-01-01

The report describes the development of a database of fuel burn and emissions from projected High Speed Civil Transport (HSCT) fleets that reflect actual airlines' networks, operational requirement, and traffic flow as operated by simulated world wide airlines for Mach 1.6, 2.0, and 2.4 HSCT configurations. For the year 2015, McDonnell Douglas Corporation created two supersonic commercial air traffic networks consisting of origin-destination city pair routes and associated traffic levels. The first scenario represented a manufacturing upper limit producible HSCT fleet availability by year 2015. The fleet projection of the Mach 2.4 configuration for this scenario was 1059 units with a traffic capture of 70 percent. The second scenario focused on the number of units that can minimally be produced by the year 2015. Using realistic production rates, the HSCT fleet projection amounts to 565 units. The traffic capture associated with this fleet was estimated at 40 percent. The airlines network was extracted from the actual networks of 21 major world airlines. All the routes were screened for suitability for HSCT operations. The route selection criteria included great circle distance, difference between flight path distance and great circle distance to avoid overland operations, and potential flight frequency.

Tools for improving safety management in the Norwegian Fishing Fleet occupational accidents analysis period of 1998-2006.

PubMed

Aasjord, Halvard L

2006-01-01

Reporting of human accidents in the Norwegian Fishing Fleet has always been very difficult because there has been no tradition in making reports on all types of working accidents among fishermen, if the accident does not seem to be very serious or there is no economical incentive to report. Therefore reports are only written when the accidents are serious or if the fisherman is reported sick. Reports about an accident are sent to the insurance company, but another report should also be sent to the Norwegian Maritime Directorate (NMD). Comparing of data from one former insurance company and NMD shows that the real numbers of injuries or serious accidents among Norwegian fishermen could be up to two times more than the numbers reported to NMD. Special analyses of 1690 accidents from the so called PUS-database (NMD) for the period 1998-2002, show that the calculated risk was 23.6 accidents per 1000 man-years. This is quite a high risk level, and most of the accidents in the fishing fleet were rather serious. The calculated risks are highest for fishermen on board the deep sea fleet of trawlers (28.6 accidents per 1000 man-years) and also on the deep sea fleet of purse seiners (28.9 accidents per 1000 man-years). Fatal accidents over a longer period of 51.5 years from 1955 to 2006 are also roughly analysed. These data from SINTEF's own database show that the numbers of fatal accidents have been decreasing over this long period, except for the two periods 1980-84 and 1990-94 where we had some casualties with total losses of larger vessels with the loss of most of the crew, but also many others typical work accidents on smaller vessels. The total numbers of registered Norwegian fishermen and also the numbers of man-years have been drastically reduced over the 51.5 years from 1955 to 2006. The risks of fatal accidents have been very steady over time at a high level, although there has been a marked risk reduction since 1990-94. For the last 8.5-year period of January 1998-July 2006 the numbers of fatal accidents and calculated risks are analysed for three main fleet groups. The highest risk factor of 24.8 fatal accidents per 10.000 man years is found in the smaller fleet, length of vessel (Loa) < 13 meters. This is 4.1 times higher than in the medium fleet (13 < Loa < 28 meters) and 11.3 times higher risk factor than in the deep sea fleet (Loa > 28 meter).

The design of a comprehensive microsimulator of household vehicle fleet composition, utilization, and evolution.

DOT National Transportation Integrated Search

2012-01-01

The report describes a comprehensive vehicle fleet composition, utilization, and evolution : simulator that can be used to forecast household vehicle ownership and mileage by type of : vehicle over time. The components of the simulator are developed ...

Cost, Emissions, and Customer Service Trade-Off Analysis In Pickup and Delivery Systems.

DOT National Transportation Integrated Search

2011-05-01

This research offers a novel formulation for including emissions into fleet assignment and vehicle routing, and for the : trade-offs faced by fleet operators between cost, emissions, and service quality. This approach enables evaluation of : the impa...

Managing railcar maintenance : a primer on practices and improvement opportunities for the U.S. transit industry.

DOT National Transportation Integrated Search

2013-09-01

This report surveys the state-of-practice of transit railcar maintenance management and fleet management practices. It emphasizes a lifecycle management approach to fleet management. It also emphasizes the role of performance improvement programs and...

77 FR 70738 - Procurement List Additions

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-27

...: C-List for 100% of the requirement of the Naval Supply Systems Command (NAVSUP) Fleet Logistics Center, Jacksonville, FL, as aggregated by the Naval Supply Systems Command (NAVSUP) Fleet Logistics Center, Jacksonville, FL. The Committee for Purchase From People Who Are Blind or Severely Disabled...

Engineering data characterizing the fleet of U.S. railway rolling stock. Volume 1 : user's guide

DOT National Transportation Integrated Search

1981-01-01

This report contains engineering parameter descriptions of major and distinctive freight vehicle configurations covering approximately 96% of the U.S. freight vehicle fleet. This data has been developed primarily for use in analytical simulation mode...

Engineering data characterizing the fleet of U.S. railway rolling stock. Volume 2 : methodology and data

DOT National Transportation Integrated Search

1981-11-01

This report contains engineering parameter descriptions of major and distinctive freight vehicle configurations covering approximately 96% of the U.S. freight vehicle fleet. This data has been developed primarily for use in analytical simulation mode...

Hazard and risk in the New England fishing fleet

DOT National Transportation Integrated Search

1998-10-29

The United States Coast Guard and the Volpe National Transportation Systems Center studied the 102 serious fishing vessel accidents (1993-1997) in Coast Guard District 1 (New England and Long Island, New York), U.S national fleet accident data, and i...

By-pass filters : taking your fleet the extra mile

DOT National Transportation Integrated Search

2000-01-01

There has been an industry-wide push over the last few years to extend oil drain intervals on fleet equipment. This industry demand is an effort to reduce downtime, reduce waste oil generation, and cut maintenance costs. Extended oil drain intervals ...

School Bus Fleet Safety: Planning and Development.

ERIC Educational Resources Information Center

Bieber, Robert M.

1984-01-01

To ensure worker safety, fleet safety managers need professional staffs, good access to top management, and sufficient authority to discharge their duties. Safety programs should include careful driver hiring; training, including orientation, testing, and practice; comprehensive accident reporting; and cooperative compliance programs with…

41 CFR 101-39.205 - [Reserved

Code of Federal Regulations, 2010 CFR

2010-07-01

... FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management System Services § 101-39.205 [Reserved] ... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true [Reserved] 101-39.205...

41 CFR 101-39.103 - Agency appeals.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Agency appeals. 101-39.103 Section 101-39.103 Public Contracts and Property Management Federal Property Management...

75 FR 4359 - Agency Information Collection Extension

Federal Register 2010, 2011, 2012, 2013, 2014

2010-01-27

...: Submission for Office of Management and Budget (OMB) review; comment request. SUMMARY: The Department of... ``Annual Alternative Fuel Vehicle Acquisition Report for State and Alternative Fuel Provider Fleets,'' OMB... compliance of regulated fleets with the alternative fueled vehicle acquisition requirements imposed by the...

Wireless GPS fleet tracking system at the University of Albany.

DOT National Transportation Integrated Search

2014-07-01

This report provides an overview of the project undertaken at the University at Albany to make alternative transportation a more : viable option by implementing a GPS Tracking System on the University bus fleet and broadcasting the bus locations to c...

Engineering data characterizing the fleet of U.S. railway rolling stock. Volume II, Methodology and data.

DOT National Transportation Integrated Search

1980-04-01

This report contains engineering parameter descriptions of major and distinctive freight vehicle configurations covering approximately 96% of the U.S. freight vehicle fleet. This data has been developed primarily for use in analytical simulation mode...

Analysis of the potential benefits of larger trucks for U.S. businesses operating private fleets.

DOT National Transportation Integrated Search

2009-05-01

This study examines the current operational and economic performance of a sample of companies that operate private fleets and establishes a present-day baseline of transport productivity and efficiency. It also estimates how transportation performanc...

Dynamic Models of the U.S. Automobile Fleet

DOT National Transportation Integrated Search

1977-08-01

The report examines some of the dynamic properties of the automobile fleet. The focus is not on new-car demand, but rather on the overall behavior of the system. Relationships derived from previous studies have been incorporated and integrated in a s...

Transportation Energy Pathways LDRD.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barter, Garrett.; Reichmuth, David.; Westbrook, Jessica

2012-09-01

This report presents a system dynamics based model of the supply-demand interactions between the US light-duty vehicle (LDV) fleet, its fuels, and the corresponding primary energy sources through the year 2050. An important capability of our model is the ability to conduct parametric analyses. Others have relied upon scenario-based analysis, where one discrete set of values is assigned to the input variables and used to generate one possible realization of the future. While these scenarios can be illustrative of dominant trends and tradeoffs under certain circumstances, changes in input values or assumptions can have a significant impact on results, especiallymore » when output metrics are associated with projections far into the future. This type of uncertainty can be addressed by using a parametric study to examine a range of values for the input variables, offering a richer source of data to an analyst.The parametric analysis featured here focuses on a trade space exploration, with emphasis on factors that influence the adoption rates of electric vehicles (EVs), the reduction of GHG emissions, and the reduction of petroleum consumption within the US LDV fleet. The underlying model emphasizes competition between 13 different types of powertrains, including conventional internal combustion engine (ICE) vehicles, flex-fuel vehicles (FFVs), conventional hybrids(HEVs), plug-in hybrids (PHEVs), and battery electric vehicles(BEVs).We find that many factors contribute to the adoption rates of EVs. These include the pace of technological development for the electric powertrain, battery performance, as well as the efficiency improvements in conventional vehicles. Policy initiatives can also have a dramatic impact on the degree of EV adoption. The consumer effective payback period, in particular, can significantly increase the market penetration rates if extended towards the vehicle lifetime.Widespread EV adoption can have noticeable impact on petroleum consumption and greenhouse gas(GHG) emission by the LDV fleet. However, EVs alone cannot drive compliance with the most aggressive GHG emission reduction targets, even as the current electricity source mix shifts away from coal and towards natural gas. Since ICEs will comprise the majority of the LDV fleet for up to forty years, conventional vehicle efficiency improvements have the greatest potential for reductions in LDV GHG emissions over this time.These findings seem robust even if global oil prices rise to two to three times current projections. Thus,investment in improving the internal combustion engine might be the cheapest, lowest risk avenue towards meeting ambitious GHG emission and petroleum consumption reduction targets out to 2050.3 Acknowledgment The authors would like to thank Dr. Andrew Lutz, Dr. Benjamin Wu, Prof. Joan Ogden and Dr. Christopher Yang for their suggestions over the course of this project. This work was funded by the Laboratory Directed Research and Development program at Sandia National Laboratories.« less

A New Remote Communications Link to Reduce Residential PV Solar Costs

DOE Office of Scientific and Technical Information (OSTI.GOV)

King, Randy; Sugiyama, Rod

Monitoring of PV/DER site production is expensive to install and unreliable. Among third party systems providers, lost communications links are a growing concern. Nearly 20% of links are failing, provisioning is complex, recovery is expensive, production data is lost, and access is fragmented. FleetLink is a new concept in DER system communications, purpose built for lowering the cost of maintaining active contact with residential end user sites and ensuring that production data is reliably available to third party systems providers. Systems providers require accurate, secure system monitoring and reporting of production data and system faults while driving down overall costsmore » to compete effectively. This plug and play, independently operating communications solution lowers the cost of fleet contact from typically .08 dollars-$.12/W down to .02 dollars -.03/W including installation and maintenance expenses. FleetLink establishes a breakthrough in simplicity that facilitates rapid expansion of residential solar by reducing initial capital outlay and lowering installation labor time and skill levels. The solution also facilitates higher DER installation growth rates by driving down maintenance costs and eliminating communications trouble calls. This is accomplished by the FleetLink’s unique network technology that enables dynamic network configuration for fast changes, and active, self-healing DER site contact for uptime assurance. Using an open source network framework with proprietary, application specific enhancements, FleetLink independently manages connectivity, security, recovery, grid control communications, and fleet expansion while presenting a compliant SunSpec interface to the third party operations centers. The net system cost savings of at least .05 dollars/W supports the SunShot cost goals and the flexibility and scalability of the solution accelerates the velocity and ubiquitous adoption of solar.« less

An evaluation of the hybrid car technology for the Mexico Mega City

NASA Astrophysics Data System (ADS)

Jazcilevich, Aron D.; Reynoso, Agustin Garcia; Grutter, Michel; Delgado, Javier; Ayala, Ulises Diego; Lastra, Manuel Suarez; Zuk, Miriam; Oropeza, Rogelio Gonzalez; Lents, Jim; Davis, Nicole

The introduction of hybrid electric vehicle (HEV) technology in the private car fleet of Mexico City is evaluated in terms of private costs, energy, public health and CO 2 emission benefits. In addition to constructing plausible scenarios for urban expansion, emission, car fleet, and fuel consumption for year 2026 and comparing them with a 2004 base case, a time series is built to obtain accumulated economic benefits. Experimental techniques were used to build a vehicle library for a car simulator that included a Prius 2002, chosen as the HEV technology representative for this work. The simulator is used to estimate the emissions and fuel consumption of the car fleet scenarios. In the context of an urban scenario for year 2026, a complex air quality model obtains the concentrations of criterion pollutants corresponding to these scenarios. Using a technology penetration model, the hybridized fleet starts unfolding in year 2009 reaching to 20% in 2026. In this year, the hybridized fleet resulted in reductions of about 10% of CO 2 emissions, and yielded reductions in daytime mean concentrations of up to 7% in ozone and 3.4% in PM 2.5 compared to the 2004 base case. These reductions are concentrated in the densely populated areas of Mexico City. By building a time series of costs and benefits it is shown that, depending on fuel prices and using a 5% return rate, positive accumulated benefits (CO 2 benefits + energy benefits + public health benefits - private costs) will start generating in year 2015 reaching between 2.8 and 4.5 billion US Dlls in 2026. Another modernized private fleet consisting exclusively of Tier I and II cars did not yield appreciable results, signaling that a change in private car technology towards HEV's is needed to obtain significant accumulated benefits.

Alternative Fuel Vehicle Adoption Increases Fleet Gasoline Consumption and Greenhouse Gas Emissions under United States Corporate Average Fuel Economy Policy and Greenhouse Gas Emissions Standards.

PubMed

Jenn, Alan; Azevedo, Inês M L; Michalek, Jeremy J

2016-03-01

The United States Corporate Average Fuel Economy (CAFE) standards and Greenhouse Gas (GHG) Emission standards are designed to reduce petroleum consumption and GHG emissions from light-duty passenger vehicles. They do so by requiring automakers to meet aggregate criteria for fleet fuel efficiency and carbon dioxide (CO2) emission rates. Several incentives for manufacturers to sell alternative fuel vehicles (AFVs) have been introduced in recent updates of CAFE/GHG policy for vehicles sold from 2012 through 2025 to help encourage a fleet technology transition. These incentives allow automakers that sell AFVs to meet less-stringent fleet efficiency targets, resulting in increased fleet-wide gasoline consumption and emissions. We derive a closed-form expression to quantify these effects. We find that each time an AFV is sold in place of a conventional vehicle, fleet emissions increase by 0 to 60 t of CO2 and gasoline consumption increases by 0 to 7000 gallons (26,000 L), depending on the AFV and year of sale. Using projections for vehicles sold from 2012 to 2025 from the Energy Information Administration, we estimate that the CAFE/GHG AFV incentives lead to a cumulative increase of 30 to 70 million metric tons of CO2 and 3 to 8 billion gallons (11 to 30 billion liters) of gasoline consumed over the vehicles' lifetimes - the largest share of which is due to legacy GHG flex-fuel vehicle credits that expire in 2016. These effects may be 30-40% larger in practice than we estimate here due to optimistic laboratory vehicle efficiency tests used in policy compliance calculations.

Picoprep-3 is a superior colonoscopy preparation to Fleet: a randomized, controlled trial comparing the two bowel preparations.

PubMed

Schmidt, Liu-Ming; Williams, Pamela; King, Denis; Perera, Dayashan

2004-02-01

Bowel preparations for colonoscopy have to balance the demand for adequate cleansing action of the bowel and patient acceptability. There has been no study comparing Picoprep-3 (sodium picosulfate), a relatively new product, to Fleet (sodium phosphate), a well-studied and widely used preparation. This study was designed to compare the efficacy and patient tolerance of these two bowel preparations for colonoscopy. A randomized, single-blinded, prospective trial was conducted. A total of 400 consecutive patients presenting for elective colonoscopy at St George Private Hospital during a 20-week period were randomly assigned to receive Picoprep-3 or Fleet. Patients were asked to record the effects of the preparation, noting tolerability, taste, and side effects. Two hundred patients were assigned to the Picoprep-3 group and 200 to the Fleet group. Surgeons were blinded to the preparation used and rated the quality of the bowel preparation on a scale of 1 to 5 (1 being the optimal score). Picoprep-3 was found to be better tolerated (P < 0.0001) and better tasting (P < 0.0001) than Fleet. Patients in the Picoprep-3 group reported significantly less nausea (P < 0.001), vomiting (P < 0.004), dizziness (P < 0.01), abdominal pains (P = 0.0005), and thirst (P < 0.0001) associated with the preparation. There was no significant difference in visualization of the colon between the two groups as judged by the two colonoscopists (P = 0.06). Colonoscopy preparation with Picoprep-3 has similar efficacy but superior taste and tolerability compared with Fleet. Picoprep-3 caused less adverse side effects in the study population.

Exceptionally high mortality rate of the 1918 influenza pandemic in the Brazilian naval fleet

PubMed Central

Schuck‐Paim, Cynthia; Shanks, G. Dennis; Almeida, Francisco E. A.; Alonso, Wladimir J.

2012-01-01

Please cite this paper as: Schuck‐Paim et al. (2012) Exceptionally high mortality rate of the 1918 influenza pandemic in the Brazilian naval fleet. Influenza and Other Respiratory Viruses DOI: 10.1111/j.1750‐2659.2012.00341.x. Background  The naval experience with the 1918 pandemic during World War I remains underexplored despite its key role on the pandemic’s global diffusion and the epidemiological interest of isolated and relatively homogeneous populations. The pandemic outbreak in the Brazilian naval fleet is of particular interest both because of its severity and the fact that it was the only Latin American military force deployed to war. Objectives  To study the mortality patterns of the pandemic in the Brazilian fleet sent to patrol the West African coast in 1918. Method  We investigated mortality across vessels, ranks, and occupations based on official population and mortality records from the Brazilian Navy Archives. Results  The outbreak that swept this fleet included the highest influenza mortality rate on any naval ship reported to date. Nearly 10% of the crews died, with death rates reaching 13–14% on two destroyers. While overall mortality was lower for officers, stokers and engineer officers were significantly more likely to die from the pandemic, possibly due to the pulmonary damage from constant exposure to the smoke and coal dust from the boilers. Conclusions  The fatality patterns observed provide valuable data on the conditions that can exacerbate the impact of a pandemic. While the putative lack of exposure to a first pandemic wave may have played a role in the excessive mortality observed in this fleet, our results indicate that strenuous labor conditions, dehydration, and exposure to coal dust were major risk factors. The unequal death rates among vessels remain an open question. PMID:22336427

Path Planning Algorithms for the Adaptive Sensor Fleet

NASA Technical Reports Server (NTRS)

Stoneking, Eric; Hosler, Jeff

2005-01-01

The Adaptive Sensor Fleet (ASF) is a general purpose fleet management and planning system being developed by NASA in coordination with NOAA. The current mission of ASF is to provide the capability for autonomous cooperative survey and sampling of dynamic oceanographic phenomena such as current systems and algae blooms. Each ASF vessel is a software model that represents a real world platform that carries a variety of sensors. The OASIS platform will provide the first physical vessel, outfitted with the systems and payloads necessary to execute the oceanographic observations described in this paper. The ASF architecture is being designed for extensibility to accommodate heterogenous fleet elements, and is not limited to using the OASIS platform to acquire data. This paper describes the path planning algorithms developed for the acquisition phase of a typical ASF task. Given a polygonal target region to be surveyed, the region is subdivided according to the number of vessels in the fleet. The subdivision algorithm seeks a solution in which all subregions have equal area and minimum mean radius. Once the subregions are defined, a dynamic programming method is used to find a minimum-time path for each vessel from its initial position to its assigned region. This path plan includes the effects of water currents as well as avoidance of known obstacles. A fleet-level planning algorithm then shuffles the individual vessel assignments to find the overall solution which puts all vessels in their assigned regions in the minimum time. This shuffle algorithm may be described as a process of elimination on the sorted list of permutations of a cost matrix. All these path planning algorithms are facilitated by discretizing the region of interest onto a hexagonal tiling.

How Fleet Bank fought employee flight.

PubMed

Nalbantian, Haig R; Szostak, Anne

2004-04-01

In the late 1990s, Fleet Bank was facing high and rising employee turnover, particularly in its retail operations. Overall turnover had reached 25% annually, and among some groups, such as tellers and customer service reps, turnover was as high as 40%. Using a new methodology developed by Mercer Human Resource Consulting, Fleet set out to determine why so many employees were leaving and what could be done to retain them. It began examining data from HR, finance, operations, and sales about employee behavior and the factors that influence it in different locations and labor markets, departments or work groups, in positions with different pay and benefits, and under different supervisors. Fleet's analysis showed that people were leaving not so much for better pay--their personal testimony notwithstanding--but for broader experience, which they thought would enhance their marketability. Additionally, the analysis revealed a link between the turnover problem and the company's busy history of mergers and acquisitions. Fleet's mergers and acquisitions. frequently meant that it had to consolidate operations. That consolidation resulted in layoffs, which provoked higher levels of voluntary turnover, perhaps because remaining employees began worrying about their job security. While the obvious solution to the turnover problem might have been to compensate the remaining employees--say, with higher pay--the more effective and less costly solution, Fleet discovered, was to focus on employees' career opportunities within the company. Those who moved up the hierarchy, or who even made lateral moves, stayed longer. By offering better internal opportunities for career development, the bank was able to stanch much of the hemorrhaging in personnel. Its solutions required only modest investments, which in the end saved the company millions of dollars.

41 CFR 101-39.004 - Optional operations.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.0-General Provisions § 101-39.004 Optional operations. Nothing in this part shall preclude the establishment or operation of interagency fleet management systems by GSA or by...

41 CFR 101-39.004 - Optional operations.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.0-General Provisions § 101-39.004 Optional operations. Nothing in this part shall preclude the establishment or operation of interagency fleet management systems by GSA or by...

40 CFR 610.32 - Test fleet selection.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 30 2011-07-01 2011-07-01 false Test fleet selection. 610.32 Section 610.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) ENERGY POLICY FUEL ECONOMY RETROFIT DEVICES Test Procedures and Evaluation Criteria Test Requirement Criteria § 610.32 Test...

40 CFR 610.32 - Test fleet selection.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Test fleet selection. 610.32 Section 610.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) ENERGY POLICY FUEL ECONOMY RETROFIT DEVICES Test Procedures and Evaluation Criteria Test Requirement Criteria § 610.32 Test...

40 CFR 610.32 - Test fleet selection.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Test fleet selection. 610.32 Section 610.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) ENERGY POLICY FUEL ECONOMY RETROFIT DEVICES Test Procedures and Evaluation Criteria Test Requirement Criteria § 610.32 Test...

40 CFR 610.32 - Test fleet selection.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Test fleet selection. 610.32 Section 610.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) ENERGY POLICY FUEL ECONOMY RETROFIT DEVICES Test Procedures and Evaluation Criteria Test Requirement Criteria § 610.32 Test...

41 CFR 101-39.104-2 - Reimbursement.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Reimbursement. 101-39.104-2 Section 101-39.104-2 Public Contracts and Property Management Federal Property Management...

41 CFR 109-39.105 - Discontinuance or curtailment of service.

Code of Federal Regulations, 2010 CFR

2010-07-01

... AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.105 Discontinuance or... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Discontinuance or...

State Vehicle Fleets and Their Potential Acquisition of Alternative Fueled Vehicles Under EPACT 507

DOT National Transportation Integrated Search

1996-01-01

Section 507(o) of the Energy Policy Act requires state governments to purchase : an increasing percentage of alternative fueled vehicles for their light-duty : vehicle (LDV) fleets. This requirement began in model year 1996. To determine : the effect...

40 CFR 610.32 - Test fleet selection.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Test fleet selection. 610.32 Section 610.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) ENERGY POLICY FUEL ECONOMY RETROFIT DEVICES Test Procedures and Evaluation Criteria Test Requirement Criteria § 610.32 Test...

Wireless global positioning system fleet tracking system at the University at Albany.

DOT National Transportation Integrated Search

2014-07-01

This report provides an overview of the project undertaken at the University at Albany to make alternative transportation a more : viable option by implementing a GPS Tracking System on the University bus fleet and broadcasting the bus locations to c...

Investigation, quantification, and recommendations : performance of alternatively fueled buses.

DOT National Transportation Integrated Search

2014-08-01

The goal of this project was to continue consistent collection and reporting of data on the performance and costs of alternatively fueled public transit vehicles in the U.S. transit fleet in order to keep the Bus Fuels Fleet Evaluation Tool (BuFFeT; ...

Biochemical Frequency Control by Synchronisation of Coupled Repressilators: An In Silico Study of Modules for Circadian Clock Systems

PubMed Central

Hinze, Thomas; Schumann, Mathias; Bodenstein, Christian; Heiland, Ines; Schuster, Stefan

2011-01-01

Exploration of chronobiological systems emerges as a growing research field within bioinformatics focusing on various applications in medicine, agriculture, and material sciences. From a systems biological perspective, the question arises whether biological control systems for regulation of oscillatory signals and their technical counterparts utilise similar mechanisms. If so, modelling approaches and parameterisation adopted from building blocks can help to identify general components for frequency control in circadian clocks along with gaining insight into mechanisms of clock synchronisation to external stimuli like the daily rhythm of sunlight and darkness. Phase-locked loops could be an interesting candidate in this context. Both, biology and engineering, can benefit from a unified view resulting from systems modularisation. In a first experimental study, we analyse a model of coupled repressilators. We demonstrate its ability to synchronise clock signals in a monofrequential manner. Several oscillators initially deviate in phase difference and frequency with respect to explicit reaction and diffusion rates. Accordingly, the duration of the synchronisation process depends on dedicated reaction and diffusion parameters whose settings still lack to be sufficiently captured analytically. PMID:22046179

Passenger vehicle safety in Australasia for different driver groups.

PubMed

Keall, Michael D; Newstead, Stuart

2011-05-01

Vehicle fleets in developed countries have benefitted from improved technology and regulation leading to safer vehicles. Nevertheless, for various reasons the public do not necessarily choose particular makes and models of cars according to their safety performance. This study aimed to identify areas for potential crashworthiness improvement in the Australasian fleets by studying the distribution of these fleets according to vehicle age and estimated crashworthiness. We used an existing database that encompassed the vast majority of the crash fleets studied, with existing estimates of crashworthiness generated by the Australasian Used Car Safety Ratings project. There were clear tendencies for older and younger people to be driving less safe vehicles that were also generally older. Given that older drivers are more fragile, and hence more liable to be injured in crashes, and younger drivers have a greater propensity to crash, it is clearly undesirable that these driver groups have the least crashworthy vehicles. Some suggestions are made to encourage safer vehicle choices. Copyright © 2010 Elsevier Ltd. All rights reserved.

Fleet Evaluation and Factory Installation of Aerodynamic Heavy Duty Truck Trailers

DOE Office of Scientific and Technical Information (OSTI.GOV)

Beck, Jason; Salari, Kambiz; Ortega, Jason

2013-09-30

The purpose of DE-EE0001552 was to develop and deploy a combination of trailer aerodynamic devices and low rolling resistance tires that reduce fuel consumption of a class 8 heavy duty tractor-trailer combination vehicle by 15%. There were 3 phases of the project: Phase 1 – Perform SAE Typed 2 track tests with multiple device combinations. Phase 2 – Conduct a fleet evaluation with selected device combination. Phase 3 – Develop the devices required to manufacture the aerodynamic trailer. All 3 phases have been completed. There is an abundance of available trailer devices on the market, and fleets and owner operatorsmore » have awareness of them and are purchasing them. The products developed in conjunction with this project are at least in their second round of refinement. The fleet test undertaken showed an improvement of 5.5 – 7.8% fuel economy with the devices (This does not include tire contribution).« less

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA Glenn Research Center

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schey, Stephen; Francfort, Jim

The Advanced Vehicle Testing Activity’s study seeks to collect and evaluate data to validate the utilization of advanced plug-in electric vehicle (PEV) transportation. This report focuses on the NASA Glenn Research Center (GRC) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.

Alternative Fuels Data Center

Science.gov Websites

Act (EPAct) of 2005 (Public Law 109-58) provisions related to alternative fuels and vehicles, air for a waiver include the lack of alternative fuel availability and cost restrictions. For more information, visit the Sustainable Federal Fleets website. Section 702 Federal Fleets Incremental Cost

Using Discrete Event Simulation To Analyze Personnel Requirements For The Malaysian Armys New Utility Helicopter Fleet

DTIC Science & Technology

2016-06-01

HELICOPTER FLEET Hasnan bin Mohamad Rais Major, Malaysian Army B.S., University Technology of Malaysia , 2000 Submitted in partial...HELICOPTER MAINTENANCE POLICY B. The objective of MAA helicopter maintenance activities is to preserve helicopter safety and mission reliability to

41 CFR 101-39.101-1 - Agency cooperation.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Agency cooperation. 101-39.101-1 Section 101-39.101-1 Public Contracts and Property Management Federal Property Management...

78 FR 14520 - Proposed Agency Information Collection Extension

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-06

... information collection request with the Office of Management and Budget. Comments are invited on: (a) Whether... State Government and Alternative Fuel Provider Fleets; (3) Type of Review: renewal; (4) Purpose: the... fleets are in compliance with the alternative fueled vehicle acquisition mandates of sections 501 and 507...

78 FR 38021 - Proposed Amendment of Agency Information Collection

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-25

...). ACTION: Submission for Office of Management and Budget (OMB) review; comment request. SUMMARY: The... information that will enable DOE to measure the impact and progress of DOE's National Clean Fleets Partnership (Partnership). The Partnership is an initiative through which DOE provides large private-sector fleets with...

Evaluating Investments in Natural Gas Vehicles and Infrastructure for Your Fleet: Vehicle Infrastructure Cash-Flow Estimation -- VICE 2.0; Clean Cities, Energy Efficiency & Renewable Energy (EERE)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gonzales, John

2015-04-02

Presentation by Senior Engineer John Gonzales on Evaluating Investments in Natural Gas Vehicles and Infrastructure for Your Fleet using the Vehicle Infrastructure Cash-flow Estimation (VICE) 2.0 model.

Commercial Vehicle Technologies | Transportation Research | NREL

Science.gov Websites

Commercial Vehicle Technologies Commercial Vehicle Technologies Photo of medium-duty truck with the commercial vehicle technologies, comparing the performance of advanced medium- and heavy-duty fleet vehicles operational goals. Performed in partnership with commercial and government fleets across the nation, these

Transportation Deployment Support | Transportation Research | NREL

Science.gov Websites

initiative complements the NPS Climate Friendly Parks program. Commercial Fleets Through the National Clean clearinghouse of medium- and heavy-duty commercial fleet vehicle operating data for optimizing vehicle improvement. Commercial Vehicle Technology Evaluations NREL conducts real-world evaluations of commercial

A Field Study of an Iris Identification System

DTIC Science & Technology

2008-05-01

conducted a field trial of a commercial iris identification scanner at the US Navy Fleet Numerical Meterology and Oceanography Center (FNMOC) in...identification scanner at the US Navy Fleet Numerical Meterology and Oceanography Center (FNMOC) in Mon- terey, CA. Scans were performed by US military guards

Satisfaction of the Automotive Fleet Fuel Demand and Its Impact on the Oil Refining Industry

DOT National Transportation Integrated Search

1980-12-01

Because virtually all transportation fuels are based on petroleum, it is essential to include petroleum refining in any assessment of potential changes in the transportation system. A number of changes in the automotive fleet have been proposed to im...

Alternative Fuels Data Center

Science.gov Websites

Liquefied Petroleum Gas (Propane) Vehicle and Equipment Incentive - Propane Council of Texas fleets. New dedicated propane vehicles and aftermarket conversions are eligible for an incentive equal to the incremental cost, up to $7,500. Each fleet is limited to $20,000 in total incentive awards

Development of a decision support tool to better manage Alabama's rural public transit vehicles

DOT National Transportation Integrated Search

2000-01-01

In an ongoing effort to improve mobility and quality of life for Alabama's citizens, researchers at the University of Alabama in Huntsville are working to improve the state's ability to manage its rural transit fleet. This fleet management consists o...

Methodology for Calculating Cost-per-Mile for Current and Future Vehicle Powertrain Technologies, with Projections to 2024: Preprint

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ruth, M.; Timbario, T. A.; Timbario, T. J.

2011-01-01

Currently, several cost-per-mile calculators exist that can provide estimates of acquisition and operating costs for consumers and fleets. However, these calculators are limited in their ability to determine the difference in cost per mile for consumer versus fleet ownership, to calculate the costs beyond one ownership period, to show the sensitivity of the cost per mile to the annual vehicle miles traveled (VMT), and to estimate future increases in operating and ownership costs. Oftentimes, these tools apply a constant percentage increase over the time period of vehicle operation, or in some cases, no increase in direct costs at all overmore » time. A more accurate cost-per-mile calculator has been developed that allows the user to analyze these costs for both consumers and fleets. The calculator was developed to allow simultaneous comparisons of conventional light-duty internal combustion engine (ICE) vehicles, mild and full hybrid electric vehicles (HEVs), and fuel cell vehicles (FCVs). This paper is a summary of the development by the authors of a more accurate cost-per-mile calculator that allows the user to analyze vehicle acquisition and operating costs for both consumer and fleets. Cost-per-mile results are reported for consumer-operated vehicles travelling 15,000 miles per year and for fleets travelling 25,000 miles per year.« less

Fleet DNA Phase 1 Refinement & Phase 2 Implementation; NREL (National Renewable Energy Laboratory)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kelly, Kenneth; Duran, Adam

2015-06-11

Fleet DNA acts as a secure data warehouse for medium- and heavy-duty vehicle data. It demonstrates that vehicle drive cycle data can be collected and stored for large-scale analysis and modeling applications. The data serve as a real-world data source for model development and validation. Storage of the results of past/present/future data collection efforts improves analysis efficiency through pooling of shared data and provides the opportunity for 'big data' type analyses. Fleet DNA shows it is possible to develop a common database structure that can store/analyze/report on data sourced from multiple parties, each with unique data formats/types. Data filtration andmore » normalization algorithms developed for the project allow for a wide range of data types and inputs, expanding the project’s potential. Fleet DNA demonstrates the power of integrating Big Data with existing and future tools and analyses: it provides an enhanced understanding and education of users, users can explore greenhouse gases and economic opportunities via AFLEET and ADOPT modeling, drive cycles can be characterized and visualized using DRIVE, high-level vehicle modeling can be performed using real-world drive cycles via FASTSim, and data reporting through Fleet DNA Phase 1 and 2 websites provides external users access to analysis results and gives the opportunity to explore on their own.« less

Developing cross entropy genetic algorithm for solving Two-Dimensional Loading Heterogeneous Fleet Vehicle Routing Problem (2L-HFVRP)

NASA Astrophysics Data System (ADS)

Paramestha, D. L.; Santosa, B.

2018-04-01

Two-dimensional Loading Heterogeneous Fleet Vehicle Routing Problem (2L-HFVRP) is a combination of Heterogeneous Fleet VRP and a packing problem well-known as Two-Dimensional Bin Packing Problem (BPP). 2L-HFVRP is a Heterogeneous Fleet VRP in which these costumer demands are formed by a set of two-dimensional rectangular weighted item. These demands must be served by a heterogeneous fleet of vehicles with a fix and variable cost from the depot. The objective function 2L-HFVRP is to minimize the total transportation cost. All formed routes must be consistent with the capacity and loading process of the vehicle. Sequential and unrestricted scenarios are considered in this paper. We propose a metaheuristic which is a combination of the Genetic Algorithm (GA) and the Cross Entropy (CE) named Cross Entropy Genetic Algorithm (CEGA) to solve the 2L-HFVRP. The mutation concept on GA is used to speed up the algorithm CE to find the optimal solution. The mutation mechanism was based on local improvement (2-opt, 1-1 Exchange, and 1-0 Exchange). The probability transition matrix mechanism on CE is used to avoid getting stuck in the local optimum. The effectiveness of CEGA was tested on benchmark instance based 2L-HFVRP. The result of experiments shows a competitive result compared with the other algorithm.

How Well Do We Know the Future of CO2 Emissions? Projecting Fleet Emissions from Light Duty Vehicle Technology Drivers.

PubMed

Martin, Niall P D; Bishop, Justin D K; Boies, Adam M

2017-03-07

While the UK has committed to reduce CO 2 emissions to 80% of 1990 levels by 2050, transport accounts for nearly a fourth of all emissions and the degree to which decarbonization can occur is highly uncertain. We present a new methodology using vehicle and powertrain parameters within a Bayesian framework to determine the impact of engineering vehicle improvements on fuel consumption and CO 2 emissions. Our results show how design changes in vehicle parameters (e.g., mass, engine size, and compression ratio) result in fuel consumption improvements from a fleet-wide mean of 5.6 L/100 km in 2014 to 3.0 L/100 km by 2030. The change in vehicle efficiency coupled with increases in vehicle numbers and fleet-wide activity result in a total fleet-wide reduction of 41 ± 10% in 2030, relative to 2012. Concerted internal combustion engine improvements result in a 48 ± 10% reduction of CO 2 emissions, while efforts to increase the number of diesel vehicles within the fleet had little additional effect. Increasing plug-in and all-electric vehicles reduced CO 2 emissions by less (42 ± 10% reduction) than concerted internal combustion engines improvements. However, if the grid decarbonizes, electric vehicles reduce emissions by 45 ± 9% with further reduction potential to 2050.

Population and Activity of On road Vehicles in MOVES201X

EPA Science Inventory

This report documents changes to assumptions about the US national highway vehicle fleet population and activity data for the next version of the MOVES model. Fleet population and activity data is used to convert emission rates into emission inventory values and then is used to ...

41 CFR 102-34.40 - Who must comply with motor vehicle fuel efficiency requirements?

Code of Federal Regulations, 2011 CFR

2011-01-01

... motor vehicle fuel efficiency requirements? 102-34.40 Section 102-34.40 Public Contracts and Property... with motor vehicle fuel efficiency requirements? (a) Executive agencies operating domestic fleets must comply with motor vehicle fuel efficiency requirements for such fleets. (b) This subpart does not apply...

Evolution of the household vehicle fleet : anticipating fleet composition, plug-in hybrid electric vehicle (PHEV) adoption and greenhouse gas (GHG) emissions in Austin, Texas.

DOT National Transportation Integrated Search

2009-12-01

Automobile ownership plays an important role in determining vehicle use, emissions, fuel : consumption, congestion and traffic safety. This work provides new data on ownership decisions : and owner preferences under various scenarios, coupled with ca...

The light-duty-vehicle fleet's evolution : anticipating PHEV adoption and greenhouse gas emissions across the U.S. fleet.

DOT National Transportation Integrated Search

2011-05-01

The first part of this report relies on stated and revealed preference survey results across a sample of U.S. households to first : ascertain vehicle acquisition, disposal, and use patterns, and then simulate these for a synthetic population over tim...

48 CFR 52.251-2 - Interagency Fleet Management System Vehicles and Related Services.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Management System Vehicles and Related Services. 52.251-2 Section 52.251-2 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION (CONTINUED) CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Text of Provisions and Clauses 52.251-2 Interagency Fleet Management System Vehicles and Related...

48 CFR 52.251-2 - Interagency Fleet Management System Vehicles and Related Services.

Code of Federal Regulations, 2011 CFR

2011-10-01

... Management System Vehicles and Related Services. 52.251-2 Section 52.251-2 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION (CONTINUED) CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Text of Provisions and Clauses 52.251-2 Interagency Fleet Management System Vehicles and Related...

41 CFR 101-39.307 - Grounds for withdrawal of vehicle.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.3-Use and Care of GSA Interagency Fleet Management... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Grounds for withdrawal of vehicle. 101-39.307 Section 101-39.307 Public Contracts and Property Management Federal Property...

76 FR 19028 - Western Pacific Pelagic Fisheries; Purse Seine Prohibited Areas Around American Samoa

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-06

... announces that the Western Pacific Fishery Management Council (Council) proposes to amend the Fishery... catch competition between purse seine vessels and local trolling and longline fleets due to possible... fleet and domestic purse seine vessels. DATES: Comments on Amendment 3, including an environmental...

ENVIRONMENTAL TECHNOLOGY VERIFICATION OF EMISSION CONTROLS FOR HEAVY-DUTY DIESEL ENGINES

EPA Science Inventory

While lower emissions limits that took effect in 2004 and reduced sulfur content in diesel fuels will reduce emissions from new heavy-duty engines, the existing diesel fleet, which pollutes at much higher levels, may still have a lifetime of 20 to 30 years. Fleet operators seekin...

41 CFR 101-39.102-2 - Effective date of determination.

Code of Federal Regulations, 2010 CFR

2010-07-01

... VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 101-39.102-2 Effective date of determination. Unless a longer time is... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Effective date of...

41 CFR 101-39.004 - Optional operations.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.0-General Provisions § 101-39.004 Optional operations. Nothing in this part shall preclude the establishment or operation of interagency fleet management systems by GSA or by... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Optional operations. 101...

41 CFR 101-39.203-1 - Obtaining motor vehicles while on temporary duty (TDY) travel.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Management Federal Property Management Regulations System FEDERAL PROPERTY MANAGEMENT REGULATIONS AVIATION, TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.2-GSA Interagency Fleet Management... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Obtaining motor vehicles...

Identifying People with Soft-Biometrics at Fleet Week

DTIC Science & Technology

2013-03-01

onboard sensors. This included:  Color Camera: Located in the right eye, Octavia stored 640x480 RGB images at ~4 Hz from a Point Grey Firefly camera. A...Face Detection The Fleet Week experiments demonstrated the potential of soft biometrics for recognition, but all of the existing algorithms currently

High-speed civil transport study: Special factors

NASA Technical Reports Server (NTRS)

1990-01-01

Studies relating to environmental factors associated with high speed civil transports were conducted. Projected total engine emissions for year 2015 fleets of several subsonic/supersonic transport fleet scenarios, discussion of sonic boom reduction methods, discussion of community noise level requirements, fuels considerations, and air traffic control impact are presented.

Alternative Fuels Data Center: Indianapolis CNG Fueling Station Attracts

Science.gov Websites

Fueling Station Attracts Local Fleets, Turns into Profit Center on Facebook Tweet about Alternative Fuels Data Center: Indianapolis CNG Fueling Station Attracts Local Fleets, Turns into Profit Center on , Turns into Profit Center on Google Bookmark Alternative Fuels Data Center: Indianapolis CNG Fueling

Fleet DNA: Commercial Fleet Vehicle Operating Data | Transportation

Science.gov Websites

and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Gasoline-Electric Hybrid Transit Buses In-Use Performance Comparison of Hybrid Electric, CNG, and Diesel Diesel Electric Hybrid Tractor Evaluation: 13-Month Final Report Project Startup: Evaluating Coca-Cola's

Identifying excessive vehicle idling and opportunities for off-road fuel tax credits for stationary operations in the Caltrans fleet, phase 1

DOT National Transportation Integrated Search

2011-01-01

This report documents the research project Identifying Excessive Vehicle Idling and Opportunities for Off-Road Fuel Tax Credits for : Stationary Operations in the Caltrans Fleet - Phase 1, performed in response to a California Department of Tra...

76 FR 1665 - Stakeholder Meetings Regarding the U.S.-Flag Great Lakes Fleet Revitalization Study; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2011-01-11

... DEPARTMENT OF TRANSPORTATION Maritime Administration [Docket No. MARAD-2010-0111] Stakeholder Meetings Regarding the U.S.-Flag Great Lakes Fleet Revitalization Study; Correction AGENCY: Maritime Administration, Department of Transportation. ACTION: Correction Notice. SUMMARY: On December 29, 2010, at 75 FR...

10 CFR 490.204 - Process for granting exemptions.

Code of Federal Regulations, 2010 CFR

2010-01-01

...) Alternative fuels that meet the normal requirements and practices of the principal business of the State fleet... requirements and practices of the principal business of the State fleet are not available for purchase or lease... must be accompanied with supporting documentation. (c) Exemptions are granted for one model year only...

Alternative Fuels Data Center

Science.gov Websites

Energy Committee (SGEC) will advise the State Energy Manager and the State Fleet Manager about energy the 30% reduction target compared to the 2010 metric ton baseline by 2030. The State Energy Manager , State Fleet Manager, and SGEC have developed performance metrics, and agencies and departments will

78 FR 43838 - Airworthiness Directives; Hamilton Sundstrand Corporation Propellers

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-22

... qualitative risk assessment. The data gathered was then used for a more representative quantitative risk analysis. The results from the bond strength tests predicts a significantly lower fleet risk than the prior... predicts a significantly lower fleet risk than the prior qualitative analysis. Accordingly, we withdraw the...

Freight Wing Trailer Aerodynamics Final Technical Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sean Graham

2007-10-31

Freight Wing Incorporated utilized the opportunity presented by a DOE category two Inventions and Innovations grant to commercialize and improve upon aerodynamic technology for semi-tuck trailers, capable of decreasing heavy vehicle fuel consumption, related environmental damage, and U.S. consumption of foreign oil. Major project goals included the demonstration of aerodynamic trailer technology in trucking fleet operations, and the development and testing of second generation products. A great deal of past scientific research has demonstrated that streamlining box shaped semi-trailers can significantly reduce a truck’s fuel consumption. However, significant design challenges have prevented past concepts from meeting industry needs. Freight Wingmore » utilized a 2003 category one Inventions and Innovations grant to develop practical solutions to trailer aerodynamics. Fairings developed for the front, rear, and bottom of standard semi-trailers together demonstrated a 7% improvement to fuel economy in scientific tests conducted by the Transportation Research Center (TRC). Operational tests with major trucking fleets proved the functionality of the products, which were subsequently brought to market. This category two grant enabled Freight Wing to further develop, test and commercialize its products, resulting in greatly increased understanding and acceptance of aerodynamic trailer technology. Commercialization was stimulated by offering trucking fleets 50% cost sharing on trial implementations of Freight Wing products for testing and evaluation purposes. Over 230 fairings were implemented through the program with 35 trucking fleets including industry leaders such as Wal-Mart, Frito Lay and Whole Foods. The feedback from these testing partnerships was quite positive with product performance exceeding fleet expectations in many cases. Fleet feedback also was also valuable from a product development standpoint and assisted the design of several second generation products intended to further improve efficiency, lower costs, and enhance durability. Resulting products demonstrated a 30% efficiency improvement in full scale wind tunnel tests. The fuel savings of our most promising product, the “Belly Fairing” increased from 4% to 6% in scientific track and operational tests. The project successfully demonstrated the economic feasibility of trailer aerodynamics and positioned the technology to realize significant public benefits. Scientific testing conducted with partners such as the EPA Smartway program and Transport Canada clearly validated the fuel and emission saving potential of the technology. The Smartway program now recommends trailer aerodynamics as a certified fuel saving technology and is offering incentives such as low interest loans. Trailer aerodynamics can save average trucks over 1,100 gallons of fuel an 13 tons of emissions every 100,000 miles, a distance many trucks travel annually. These fuel savings produce a product return on investment period of one to two years in average fleet operations. The economic feasibility of the products was validated by participating fleets, several of which have since completed large implementations or demonstrated an interest in volume orders. The commercialization potential of the technology was also demonstrated, resulting in a national distribution and manufacturing partnership with a major industry supplier, Carrier Transicold. Consequently, Freight Wing is well positioned to continue marketing trailer aerodynamics to the trucking industry. The participation of leading fleets in this project served to break down the market skepticism that represents a primary barrier to widespread industry utilization. The benefits of widespread utilization of the technology could be quite significant for both the transportation industry and the public. Trailer aerodynamics could potentially save the U.S. trucking fleet over a billion gallons of fuel and 20 million tons of emissions annually.« less

A system of recurrent neural networks for modularising, parameterising and dynamic analysis of cell signalling networks.

PubMed

Samarasinghe, S; Ling, H

In this paper, we show how to extend our previously proposed novel continuous time Recurrent Neural Networks (RNN) approach that retains the advantage of continuous dynamics offered by Ordinary Differential Equations (ODE) while enabling parameter estimation through adaptation, to larger signalling networks using a modular approach. Specifically, the signalling network is decomposed into several sub-models based on important temporal events in the network. Each sub-model is represented by the proposed RNN and trained using data generated from the corresponding ODE model. Trained sub-models are assembled into a whole system RNN which is then subjected to systems dynamics and sensitivity analyses. The concept is illustrated by application to G1/S transition in cell cycle using Iwamoto et al. (2008) ODE model. We decomposed the G1/S network into 3 sub-models: (i) E2F transcription factor release; (ii) E2F and CycE positive feedback loop for elevating cyclin levels; and (iii) E2F and CycA negative feedback to degrade E2F. The trained sub-models accurately represented system dynamics and parameters were in good agreement with the ODE model. The whole system RNN however revealed couple of parameters contributing to compounding errors due to feedback and required refinement to sub-model 2. These related to the reversible reaction between CycE/CDK2 and p27, its inhibitor. The revised whole system RNN model very accurately matched dynamics of the ODE system. Local sensitivity analysis of the whole system model further revealed the most dominant influence of the above two parameters in perturbing G1/S transition, giving support to a recent hypothesis that the release of inhibitor p27 from Cyc/CDK complex triggers cell cycle stage transition. To make the model useful in a practical setting, we modified each RNN sub-model with a time relay switch to facilitate larger interval input data (≈20min) (original model used data for 30s or less) and retrained them that produced parameters and protein concentrations similar to the original RNN system. Results thus demonstrated the reliability of the proposed RNN method for modelling relatively large networks by modularisation for practical settings. Advantages of the method are its ability to represent accurate continuous system dynamics and ease of: parameter estimation through training with data from a practical setting, model analysis (40% faster than ODE), fine tuning parameters when more data are available, sub-model extension when new elements and/or interactions come to light and model expansion with addition of sub-models. Copyright © 2017 Elsevier B.V. All rights reserved.

NASA Glenn's Contributions to Aircraft Engine Noise Research

NASA Technical Reports Server (NTRS)

Huff, Dennis L.

2014-01-01

This presentation reviews engine noise research conducted at the NASA Glenn Research Center over the past 70 years. This report includes a historical perspective of the Center and the facilities used to conduct the research. Major noise research programs are highlighted to show their impact on industry and on the development of aircraft noise reduction technology. Noise reduction trends are discussed, and future aircraft concepts are presented. Since the 1960s, research results show that the average perceived noise level has been reduced by about 20 decibels (dB). Studies also show that, depending on the size of the airport, the aircraft fleet mix, and the actual growth in air travel, another 15 to 17 dB reduction will be required to achieve NASAs long-term goal of providing technologies to limit objectionable noise to the boundaries of an average airport.

Aerospace Energy Systems Laboratory - Requirements and design approach

NASA Technical Reports Server (NTRS)

Glover, Richard D.

1988-01-01

The NASA Ames/Dryden Flight Research Facility operates a mixed fleet of research aircraft employing NiCd batteries in a variety of flight-critical applications. Dryden's Battery Systems Laboratory (BSL), a computerized facility for battery maintenance servicing, has evolved over two decades into one of the most advanced facilities of its kind in the world. Recently a major BSL upgrade was initiated with the goal of modernization to provide flexibility in meeting the needs of future advanced projects. The new facility will be called the Aerospace Energy Systems Laboratory (AESL) and will employ distributed processing linked to a centralized data base. AESL will be both a multistation servicing facility and a research laboratory for the advancement of energy storage system maintenance techniques. This paper describes the baseline requirements for the AESL and the design approach being taken for its mechanization.

NASA Glenn's Contributions to Aircraft Engine Noise Research

NASA Technical Reports Server (NTRS)

Huff, Dennis L.

2013-01-01

This report reviews all engine noise research conducted at the NASA Glenn Research Center over the past 70 years. This report includes a historical perspective of the Center and the facilities used to conduct the research. Major noise research programs are highlighted to show their impact on industry and on the development of aircraft noise reduction technology. Noise reduction trends are discussed, and future aircraft concepts are presented. Since the 1960s, research results show that the average perceived noise level has been reduced by about 20 decibels (dB). Studies also show that, depending on the size of the airport, the aircraft fleet mix, and the actual growth in air travel, another 15 to 17 dB reduction will be required to achieve NASA's long-term goal of providing technologies to limit objectionable noise to the boundaries of an average airport.

An Optimization-Based Approach to Determine Requirements and Aircraft Design under Multi-domain Uncertainties

NASA Astrophysics Data System (ADS)

Govindaraju, Parithi

Determining the optimal requirements for and design variable values of new systems, which operate along with existing systems to provide a set of overarching capabilities, as a single task is challenging due to the highly interconnected effects that setting requirements on a new system's design can have on how an operator uses this newly designed system. This task of determining the requirements and the design variable values becomes even more difficult because of the presence of uncertainties in the new system design and in the operational environment. This research proposed and investigated aspects of a framework that generates optimum design requirements of new, yet-to-be-designed systems that, when operating alongside other systems, will optimize fleet-level objectives while considering the effects of various uncertainties. Specifically, this research effort addresses the issues of uncertainty in the design of the new system through reliability-based design optimization methods, and uncertainty in the operations of the fleet through descriptive sampling methods and robust optimization formulations. In this context, fleet-level performance metrics result from using the new system alongside other systems to accomplish an overarching objective or mission. This approach treats the design requirements of a new system as decision variables in an optimization problem formulation that a user in the position of making an acquisition decision could solve. This solution would indicate the best new system requirements-and an associated description of the best possible design variable variables for that new system-to optimize the fleet level performance metric(s). Using a problem motivated by recorded operations of the United States Air Force Air Mobility Command for illustration, the approach is demonstrated first for a simplified problem that only considers demand uncertainties in the service network and the proposed methodology is used to identify the optimal design requirements and optimal aircraft sizing variables of new, yet-to-be-introduced aircraft. With this new aircraft serving alongside other existing aircraft, the fleet of aircraft satisfy the desired demand for cargo transportation, while maximizing fleet productivity and minimizing fuel consumption via a multi-objective problem formulation. The approach is then extended to handle uncertainties in both the design of the new system and in the operations of the fleet. The propagation of uncertainties associated with the conceptual design of the new aircraft to the uncertainties associated with the subsequent operations of the new and existing aircraft in the fleet presents some unique challenges. A computationally tractable hybrid robust counterpart formulation efficiently handles the confluence of the two types of domain-specific uncertainties. This hybrid formulation is tested on a larger route network problem to demonstrate the scalability of the approach. Following the presentation of the results obtained, a summary discussion indicates how decision-makers might use these results to set requirements for new aircraft that meet operational needs while balancing the environmental impact of the fleet with fleet-level performance. Comparing the solutions from the uncertainty-based and deterministic formulations via a posteriori analysis demonstrates the efficacy of the robust and reliability-based optimization formulations in addressing the different domain-specific uncertainties. Results suggest that the aircraft design requirements and design description determined through the hybrid robust counterpart formulation approach differ from solutions obtained from the simplistic deterministic approach, and leads to greater fleet-level fuel savings, when subjected to real-world uncertain scenarios (more robust to uncertainty). The research, though applied to a specific air cargo application, is technically agnostic in nature and can be applied to other facets of policy and acquisition management, to explore capability trade spaces for different vehicle systems, mitigate risks, define policy and potentially generate better returns on investment. Other domains relevant to policy and acquisition decisions could utilize the problem formulation and solution approach proposed in this dissertation provided that the problem can be split into a non-linear programming problem to describe the new system sizing and the fleet operations problem can be posed as a linear/integer programming problem.

Simulation of Crack Propagation in Engine Rotating Components under Variable Amplitude Loading

NASA Technical Reports Server (NTRS)

Bonacuse, P. J.; Ghosn, L. J.; Telesman, J.; Calomino, A. M.; Kantzos, P.

1998-01-01

The crack propagation life of tested specimens has been repeatedly shown to strongly depend on the loading history. Overloads and extended stress holds at temperature can either retard or accelerate the crack growth rate. Therefore, to accurately predict the crack propagation life of an actual component, it is essential to approximate the true loading history. In military rotorcraft engine applications, the loading profile (stress amplitudes, temperature, and number of excursions) can vary significantly depending on the type of mission flown. To accurately assess the durability of a fleet of engines, the crack propagation life distribution of a specific component should account for the variability in the missions performed (proportion of missions flown and sequence). In this report, analytical and experimental studies are described that calibrate/validate the crack propagation prediction capability ]or a disk alloy under variable amplitude loading. A crack closure based model was adopted to analytically predict the load interaction effects. Furthermore, a methodology has been developed to realistically simulate the actual mission mix loading on a fleet of engines over their lifetime. A sequence of missions is randomly selected and the number of repeats of each mission in the sequence is determined assuming a Poisson distributed random variable with a given mean occurrence rate. Multiple realizations of random mission histories are generated in this manner and are used to produce stress, temperature, and time points for fracture mechanics calculations. The result is a cumulative distribution of crack propagation lives for a given, life limiting, component location. This information can be used to determine a safe retirement life or inspection interval for the given location.

Prospects of and Problems in Using Natural Gas for Motor Transport in RUSSIA

NASA Astrophysics Data System (ADS)

Chikishev, E.; Ivanov, A.; Anisimov, I.; Chainikov, D.

2016-08-01

This article is devoted to increasing the use of natural gas in Russia as a measure to decrease the negative influence of motor transport on the environment. A brief analysis of the global fleet of natural gas vehicles is provided above. The documents accepted in Russia to promote public awareness of compressed natural gas in transport are submitted. The basic reasons keeping the growth of natural gas vehicle fleets in Russia consist of weak branching of refuelling stations; difficulty in determining the actual amount of compressed natural gas required; and control methods of the consumption of gas fuel. The offers promoting the growth of the fleet of natural gas vehicles are given.

The Second Joint NASA/FAA/DOD Conference on Aging Aircraft. Pt. 1

NASA Technical Reports Server (NTRS)

Harris, Charles E. (Editor)

1999-01-01

The purpose of the Conference was to bring together world leaders in aviation safety research, aircraft design and manufacturing, fleet operation and aviation maintenance to disseminate information on current practices and advanced technologies that will assure the continued airworthiness of the aging aircraft in the military and commercial fleets. The Conference included reviews of current industry practices, assessments of future technology requirements, and status of aviation safety research. The Conference provided an opportunity for interactions among the key personnel in the research and technology development community, the original equipment manufacturers, commercial airline operators, military fleet operators, aviation maintenance, and aircraft certification and regulatory authorities. Conference participation was unrestricted and open to the international aviation community.

40 CFR 80.59 - General test fleet requirements for vehicle testing.

Code of Federal Regulations, 2013 CFR

2013-07-01

... the 1990 model year. To be technologically equivalent vehicles at minimum must have closed-loop....61. All vehicle maintenance procedures must be reported to the Administrator. (c) Each vehicle in the test fleet shall have no fewer than 4,000 miles of accumulated mileage prior to being included in the...

40 CFR 80.59 - General test fleet requirements for vehicle testing.

Code of Federal Regulations, 2014 CFR

2014-07-01

... the 1990 model year. To be technologically equivalent vehicles at minimum must have closed-loop.... All vehicle maintenance procedures must be reported to the Administrator. (c) Each vehicle in the test fleet shall have no fewer than 4,000 miles of accumulated mileage prior to being included in the test...

40 CFR 80.59 - General test fleet requirements for vehicle testing.

Code of Federal Regulations, 2011 CFR

2011-07-01

... the 1990 model year. To be technologically equivalent vehicles at minimum must have closed-loop....61. All vehicle maintenance procedures must be reported to the Administrator. (c) Each vehicle in the test fleet shall have no fewer than 4,000 miles of accumulated mileage prior to being included in the...

40 CFR 80.59 - General test fleet requirements for vehicle testing.

Code of Federal Regulations, 2010 CFR

2010-07-01

... the 1990 model year. To be technologically equivalent vehicles at minimum must have closed-loop....61. All vehicle maintenance procedures must be reported to the Administrator. (c) Each vehicle in the test fleet shall have no fewer than 4,000 miles of accumulated mileage prior to being included in the...

40 CFR 80.59 - General test fleet requirements for vehicle testing.

Code of Federal Regulations, 2012 CFR

2012-07-01

... the 1990 model year. To be technologically equivalent vehicles at minimum must have closed-loop....61. All vehicle maintenance procedures must be reported to the Administrator. (c) Each vehicle in the test fleet shall have no fewer than 4,000 miles of accumulated mileage prior to being included in the...

Round 1 Emissions Results from Compressed Natural Gas Vans and Gasoline Controls Operating in the U.S. Federal Fleet

DOT National Transportation Integrated Search

1996-05-01

The first round of emissions testing of light-duty alternative fuel vehicles : placed in the U.S. federal fleet under the provisions of the Alternative Motor : Fuels Act was recently completed. This undertaking included 75 Dodge B250 vans, : of which...

Drive Cycle Analysis Tool - DriveCAT | NREL

Science.gov Websites

tool was created by NREL's fleet test and evaluation team, which conducts in-service performance their needs. Learn more about NREL's fleet test and evaluation research. Contact Us Let us know if you have any questions about the data, need assistance, or would like to contribute test cycles. We also

77 FR 66577 - Fisheries Off West Coast States; Pacific Coast Groundfish Fishery; Trawl Rationalization Program...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-06

... Pacific Fishery Management Council's Web site at http://www.pcouncil.org/ . Background In January 2011... groundfish fishery's trawl fleet. The trawl rationalization program consists of an IFQ program for the shorebased trawl fleet (including whiting and non-whiting fisheries); and cooperative (coop) programs for the...

41 CFR 109-39.101 - Notice of intention to begin a study.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., TRANSPORTATION, AND MOTOR VEHICLES 39-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.1-Establishment, Modification, and Discontinuance of Interagency Fleet Management Systems § 109-39.101 Notice of intention to begin a study. ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Notice of intention to...

41 CFR 101-39.401 - Reporting of accidents.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-INTERAGENCY FLEET MANAGEMENT SYSTEMS 39.4-Accidents and Claims § 101-39.401 Reporting of accidents. (a) The... manager of the GSA IFMS fleet management center issuing the vehicle; (2) The employee's supervisor; and (3... 41 Public Contracts and Property Management 2 2010-07-01 2010-07-01 true Reporting of accidents...

78 FR 35090 - Agency Information Collection Activity Under OMB Review; Reports, Forms and Recordkeeping...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-11

... forwarded to the Office of Management and Budget (OMB) for review and approval. The nature of the... qualified vessels in the Maritime Security Program Fleet. Applications and amendments are used to select vessels for the fleet. Periodic reporting is used to monitor adherence of contractors to program...

76 FR 6182 - Reports, Forms and Recordkeeping Requirements; Agency Information Collection Activity Under OMB...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-03

... forwarded to the Office of Management and Budget (OMB) for review and approval. The nature of the... qualified vessels in the Maritime Security Program Fleet. Applications and amendments are used to select vessels for the fleet. Periodic reporting is used to monitor adherence of contractors to program...

41 CFR 102-34.300 - How do we dispose of a domestic fleet motor vehicle?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false How do we dispose of a domestic fleet motor vehicle? 102-34.300 Section 102-34.300 Public Contracts and Property Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION PERSONAL PROPERTY...

Federal energy and fleet management : plug-in vehicles offer potential benefits, but high costs and limited information could hinder integration into the FederalFleet.

DOT National Transportation Integrated Search

2009-06-01

The U.S. transportation sector relies almost exclusively on oil; as a result, it causes about a third of the nations greenhouse gas emissions. Advanced technology vehicles powered by alternative fuels, such as electricity and ethanol, are one way ...

Market Analysis and Consumer Impacts Source Document. Part II. Review of Motor Vehicle Market and Consumer Expenditures on Motor Vehicle Transportation

DOT National Transportation Integrated Search

1980-12-01

This source document on motor vehicle market analysis and consumer impacts consists of three parts. Part II consists of studies and review on: motor vehicle sales trends; motor vehicle fleet life and fleet composition; car buying patterns of the busi...

49 CFR 37.185 - Fleet accessibility requirement for OTRB fixed-route systems of large operators.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 1 2010-10-01 2010-10-01 false Fleet accessibility requirement for OTRB fixed-route systems of large operators. 37.185 Section 37.185 Transportation Office of the Secretary of Transportation TRANSPORTATION SERVICES FOR INDIVIDUALS WITH DISABILITIES (ADA) Over-the-Road Buses (OTRBs) § 37...

77 FR 40521 - Security Zones, Seattle's Seafair Fleet Week Moving Vessels, Puget Sound, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-10

... 1625-AA87 Security Zones, Seattle's Seafair Fleet Week Moving Vessels, Puget Sound, WA AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The U.S. Coast Guard is establishing security zones around designated participating vessels that are not protected by the Naval Vessel Protection Zone in Seattle's...

33 CFR 165.1121 - Security Zone: Fleet Supply Center Industrial Pier, San Diego, CA.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Center Industrial Pier, San Diego, CA. 165.1121 Section 165.1121 Navigation and Navigable Waters COAST... Guard District § 165.1121 Security Zone: Fleet Supply Center Industrial Pier, San Diego, CA. (a) Location. The following area is a security zone: the waters of San Diego Bay extending approximately 100...

Alternative Compliance: Guidelines for Preparing and Submitting a Waiver Request Application and Other Documentation Requirements

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2013-03-01

This document is designed to assist covered fleets interested in taking advantage of more flexible compliance options and to facilitate the transition from Standard Compliance to Alternative Compliance. It is designed to help fleets better understand the Alternative Compliance option and successfully complete the waiver application process.

Alternative Compliance: Guidelines for Preparing and Submitting a Waiver Request Application and Other Documentation Requirements (Brochure)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2014-06-01

This document is designed to assist covered fleets interested in taking advantage of more flexible compliance options and to facilitate the transition from Standard Compliance to Alternative Compliance. It is designed to help fleets better understand the Alternative Compliance option and successfully complete the waiver application process.