Sample records for side rail integrated

  1. The operation of a single-sided linear induction motor with squirrel-cage and solid-steel reaction rails

    NASA Astrophysics Data System (ADS)

    Eastham, A. R.; Katz, R. M.

    1980-09-01

    Two test programs have been conducted to evaluate the performance of a single-sided linear induction motor with a squirrel-cage reaction rail and with a solid steel reaction rail. A 1.73-m-long six-pole stator interacted with the rails mounted on the rim of a 7.6-m-diam wheel. A 64-channel data acquisition system allowed tests to be performed over a wide range of operating conditions at speeds up to 20 m/sec. Typical test results which compare and contrast the mechanical, electrical and magnetic behavior of the SLIMs are presented. The test data are being used to assess the SLIM as an integrated suspension/propulsion system and for other transportation applications.

  2. The structural response of a rail accelerator

    NASA Technical Reports Server (NTRS)

    Wang, S. Y.

    1983-01-01

    The transient response of a 0.4 by 0.6 cm rectangular bore rail accelerator was analyzed by a three dimensional finite element code. The copper rail deflected to a peak value of 0.08 mm in compression and then oscillated at an amplitude of 0.02 mm. Simultaneously the insulating side wall of glass fabric base, epoxy resin laminate (G-1o) was compressed to a peak value of 0.13 mm and rebounded to a steady state in extension. Projectile pinch or blowby due to the rail extension or compression, respectively, can be identified by examining the time history of the rail displacement. The effect of blowby was most significant at the side wall characterized by mm size displacement in compression. Dynamic stress calculations indicate that the G-10 supporting material behind the rail is subjected to over 21 MPa at which the G-10 could fail if the laminate was not carefully oriented. Results for a polycarbonate resin (Lexan) side wall show much larger displacements and stresses than for G-10. The tradeoff between the transparency of Lexan and the mechanical strength of G-10 for sidewall material is obvious. Displacement calculations from the modal method are smaller than the results from the direct integration method by almost an order of magnitude, because the high frequency effect is neglected.

  3. 29 CFR 1915.72 - Ladders.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... sectional area of the side rail. The dimensions of side rails for their total length shall be those...). (b) Construction of portable wood cleated ladders up to 30 feet in length. (1) Wood side rails shall... than one such pocket appears in each 4 feet of length. (5) The width between side rails at the base...

  4. Integrated main rail, feed rail, and current collector

    DOEpatents

    Petri, Randy J.; Meek, John; Bachta, Robert P.; Marianowski, Leonard G.

    1994-01-01

    A separator plate for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced.

  5. Integrated main rail, feed rail, and current collector

    DOEpatents

    Petri, R.J.; Meek, J.; Bachta, R.P.; Marianowski, L.G.

    1994-11-08

    A separator plate is described for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced. 9 figs.

  6. The Safety of Hospital Beds

    PubMed Central

    Gervais, Pierre; Pooler, Charlotte; Merryweather, Andrew; Doig, Alexa K.; Bloswick, Donald

    2015-01-01

    To explore the safety of the standard and the low hospital bed, we report on a microanalysis of 15 patients’ ability to ingress, move about the bed, and egress. The 15 participants were purposefully selected with various disabilities. Bed conditions were randomized with side rails up or down and one low bed with side rails down. We explored the patients’ use of the side rails, bed height, ability to lift their legs onto the mattress, and ability to turn, egress, and walk back to the chair. The standard bed was too high for some participants, both for ingress and egress. Side rails were used by most participants when entering, turning in bed, and exiting. We recommend that side rails be reconsidered as a means to facilitate in-bed movement, ingress, and egress. Furthermore, single deck height settings for all patients are not optimal. Low beds as a safety measure must be re-evaluated. PMID:28462302

  7. Detail, east side, north end, showing door and overhead rail ...

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

    Detail, east side, north end, showing door and overhead rail for refrigeration room. - Fitzsimons General Hospital, Ice Plant, Southwest Corner of East I Avenue & North Thirteenth Street, Aurora, Adams County, CO

  8. Turbine blade squealer tip rail with fence members

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

    Little, David A

    2012-11-20

    A turbine blade includes an airfoil, a blade tip section, a squealer tip rail, and a plurality of chordally spaced fence members. The blade tip section includes a blade tip floor located at an end of the airfoil distal from the root. The blade tip floor includes a pressure side and a suction side joined together at chordally spaced apart leading and trailing edges of the airfoil. The squealer tip rail extends radially outwardly from the blade tip floor adjacent to the suction side and extends from a first location adjacent to the airfoil trailing edge to a second locationmore » adjacent to the airfoil leading edge. The fence members are located between the airfoil leading and trailing edges and extend radially outwardly from the blade tip floor and axially from the squealer tip rail toward the pressure side.« less

  9. 5. DETAIL VIEW OF SIDE STEEL RAIL, DECK, AND SHELF ...

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

    5. DETAIL VIEW OF SIDE STEEL RAIL, DECK, AND SHELF FROM SOUTHWEST CORNER - Price River Bridge, Spanning Price River, 760 North Street in Carbonville, 1 mile northwest of Price, Carbonville, Carbon County, UT

  10. 46 CFR 72.40-10 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Storm rails. 72.40-10 Section 72.40-10 Shipping COAST... and Guards § 72.40-10 Storm rails. (a) Suitable storm rails shall be installed in all passageways and at the deckhouse sides where passengers or crew might have normal access. Storm rails shall be...

  11. 46 CFR 72.40-10 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 3 2013-10-01 2013-10-01 false Storm rails. 72.40-10 Section 72.40-10 Shipping COAST... and Guards § 72.40-10 Storm rails. (a) Suitable storm rails shall be installed in all passageways and at the deckhouse sides where passengers or crew might have normal access. Storm rails shall be...

  12. 46 CFR 72.40-10 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 3 2011-10-01 2011-10-01 false Storm rails. 72.40-10 Section 72.40-10 Shipping COAST... and Guards § 72.40-10 Storm rails. (a) Suitable storm rails shall be installed in all passageways and at the deckhouse sides where passengers or crew might have normal access. Storm rails shall be...

  13. 46 CFR 72.40-10 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 3 2012-10-01 2012-10-01 false Storm rails. 72.40-10 Section 72.40-10 Shipping COAST... and Guards § 72.40-10 Storm rails. (a) Suitable storm rails shall be installed in all passageways and at the deckhouse sides where passengers or crew might have normal access. Storm rails shall be...

  14. 46 CFR 72.40-10 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 3 2014-10-01 2014-10-01 false Storm rails. 72.40-10 Section 72.40-10 Shipping COAST... and Guards § 72.40-10 Storm rails. (a) Suitable storm rails shall be installed in all passageways and at the deckhouse sides where passengers or crew might have normal access. Storm rails shall be...

  15. 12. Railing and newel post detail on west side of ...

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

    12. Railing and newel post detail on west side of south end of bridge. Oblique view northwest (from roadway). 90 mm lens. - Gault Bridge, Spanning Deer Creek at South Pine Street, Nevada City, Nevada County, CA

  16. 46 CFR 190.25-10 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Storm rails. 190.25-10 Section 190.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 190.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  17. 46 CFR 92.25-10 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Storm rails. 92.25-10 Section 92.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 92.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  18. 46 CFR 190.25-10 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Storm rails. 190.25-10 Section 190.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 190.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  19. 46 CFR 190.25-10 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Storm rails. 190.25-10 Section 190.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 190.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  20. 46 CFR 92.25-10 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Storm rails. 92.25-10 Section 92.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 92.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  1. 46 CFR 92.25-10 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Storm rails. 92.25-10 Section 92.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 92.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  2. 46 CFR 92.25-10 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Storm rails. 92.25-10 Section 92.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 92.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  3. 46 CFR 190.25-10 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Storm rails. 190.25-10 Section 190.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 190.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  4. 46 CFR 190.25-10 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Storm rails. 190.25-10 Section 190.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 190.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  5. 46 CFR 92.25-10 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Storm rails. 92.25-10 Section 92.25-10 Shipping COAST... ARRANGEMENT Rails and Guards § 92.25-10 Storm rails. (a) On vessels in ocean and coastwise service, suitable storm rails shall be installed in all passageways and at the deckhouse sides where persons on board...

  6. Art deco railing detail on SE side. Partial segment in ...

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

    Art deco railing detail on SE side. Partial segment in left foreground is same as center segment in photo WA-141-5. - Raging River Bridge No. 234A, Preston-Fall City Road & Southeast Forty-fourth Place, Fall City, King County, WA

  7. 49 CFR 213.139 - Spring rail frogs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Spring rail frogs. 213.139 Section 213.139..., DEPARTMENT OF TRANSPORTATION TRACK SAFETY STANDARDS Track Structure § 213.139 Spring rail frogs. (a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each...

  8. 49 CFR 213.139 - Spring rail frogs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Spring rail frogs. 213.139 Section 213.139..., DEPARTMENT OF TRANSPORTATION TRACK SAFETY STANDARDS Track Structure § 213.139 Spring rail frogs. (a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each...

  9. 49 CFR 213.139 - Spring rail frogs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Spring rail frogs. 213.139 Section 213.139..., DEPARTMENT OF TRANSPORTATION TRACK SAFETY STANDARDS Track Structure § 213.139 Spring rail frogs. (a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each...

  10. 49 CFR 213.139 - Spring rail frogs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Spring rail frogs. 213.139 Section 213.139..., DEPARTMENT OF TRANSPORTATION TRACK SAFETY STANDARDS Track Structure § 213.139 Spring rail frogs. (a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each...

  11. 49 CFR 213.139 - Spring rail frogs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Spring rail frogs. 213.139 Section 213.139..., DEPARTMENT OF TRANSPORTATION TRACK SAFETY STANDARDS Track Structure § 213.139 Spring rail frogs. (a) The outer edge of a wheel tread shall not contact the gage side of a spring wing rail. (b) The toe of each...

  12. Analysis of minimum rail size in heavy axle load environment

    DOT National Transportation Integrated Search

    2013-04-15

    The effects of increasing axle loads on rail integrity are examined in this paper. In the present context, rail integrity refers to the prevention and control of rail failures. Rail failures usually occur because cracks or defects develop and grow fr...

  13. 77 FR 60169 - Safety Advisory 2012-04; Worn Rail Conditions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-02

    ... located on the high side of a curve, due to the exertion of wheel flange forces. Vertical rail head wear... locations that exhibit excessive rail head wear and RCF. 3. Review its current engineering instructions to...

  14. 29 CFR 1915.72 - Ladders.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...). (b) Construction of portable wood cleated ladders up to 30 feet in length. (1) Wood side rails shall... shall be at least 25/32×33/4 inches in cross section. (c) Construction of portable wood cleated ladders... split side rails, or other faulty or defective construction is prohibited. When ladders with such...

  15. 76 FR 71117 - Petition for Waiver of Compliance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ... field side of the near running rail.'' In the case of a platform, 4 feet from the field side of the rail... examination of publicly-available data regarding passenger and employee injuries and fatalities on railroad... difference in worker injuries and fatalities on station platforms when compared to FRA data. Amtrak conducted...

  16. Rail Integrity Experience on the Washington Metro System

    DOT National Transportation Integrated Search

    2016-04-12

    The Washington Metropolitan Area Transit Authority (WMATA) provides passenger rail service to the nations capital. Although the rail system carries only passenger trains, the rail integrity issues that WMATA must manage are similar to those that f...

  17. Bubble propagation on a rail: a concept for sorting bubbles by size

    NASA Astrophysics Data System (ADS)

    Franco-Gómez, Andrés; Thompson, Alice B.; Hazel, Andrew L.; Juel, Anne

    We demonstrate experimentally that the introduction of a rail, a small height constriction, within the cross-section of a rectangular channel could be used as a robust passive sorting device in two-phase fluid flows. Single air bubbles carried within silicone oil are generally transported on one side of the rail. However, for flow rates marginally larger than a critical value, a narrow band of bubble sizes can propagate (stably) over the rail, while bubbles of other sizes segregate to the side of the rail. The width of this band of bubble sizes increases with flow rate and the size of the most stable bubble can be tuned by varying the rail width. We present a complementary theoretical analysis based on a depth-averaged theory, which is in qualitative agreement with the experiments. The theoretical study reveals that the mechanism relies on a non-trivial interaction between capillary and viscous forces that is fully dynamic, rather than being a simple modification of capillary static solutions.

  18. Cooled electronic system with thermal spreaders coupling electronics cards to cold rails

    DOEpatents

    Chainer, Timothy J; Gaynes, Michael A; Graybill, David P; Iyengar, Madhusudan K; Kamath, Vinod; Kochuparambil, Bejoy J; Schmidt, Roger R; Schultz, Mark D; Simco, Daniel P; Steinke, Mark E

    2013-07-23

    Liquid-cooled electronic systems are provided which include an electronic assembly having an electronics card and a socket with a latch at one end. The latch facilitates securing of the card within the socket or removal of the card from the socket. A liquid-cooled cold rail is disposed at the one end of the socket, and a thermal spreader couples the electronics card to the cold rail. The thermal spreader includes first and second thermal transfer plates coupled to first and second surfaces on opposite sides of the card, and thermally conductive extensions extending from end edges of the plates, which couple the respective transfer plates to the liquid-cooled cold rail. The thermally conductive extensions are disposed to the sides of the latch, and the card is securable within or removable from the socket using the latch without removing the cold rail or the thermal spreader.

  19. 15. INTERIOR VIEW OF HILLMAN FAN HOUSE LOOKING WEST The ...

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

    15. INTERIOR VIEW OF HILLMAN FAN HOUSE LOOKING WEST The No. 2 (Hillman) shaft is on the other side of the rail barrier. In the background are the ventilating doors leading to the airway from the No. 4 (Baltimore) shaft. The brick wall on the left is pointed; it splits the air directing it to both sides of the double inlet Guibal centrifugal fan. The concrete rail support also is pointed to reduce air resistance. The rails are recycled light guage mine railroad tracks. The alterations to the fan house are evident in the left background, where a sloping joint between the concrete and brick suggests an earlier roof pitched the other way. - Dorrance Colliery Fan Complex, South side of Susquehanna River at Route 115 & Riechard Street, Wilkes-Barre, Luzerne County, PA

  20. Detail view of stylized railing and bronze light fixture on ...

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

    Detail view of stylized railing and bronze light fixture on southwest facade - Blue Ridge Sanatorium, Building No. 1901, East side of State Route 20, .25 mile south of I-64, Charlottesville, Independent City, VA

  1. Method of fabricating a cooled electronic system

    DOEpatents

    Chainer, Timothy J; Gaynes, Michael A; Graybill, David P; Iyengar, Madhusudan K; Kamath, Vinod; Kochuparambil, Bejoy J; Schmidt, Roger R; Schultz, Mark D; Simco, Daniel P; Steinke, Mark E

    2014-02-11

    A method of fabricating a liquid-cooled electronic system is provided which includes an electronic assembly having an electronics card and a socket with a latch at one end. The latch facilitates securing of the card within the socket. The method includes providing a liquid-cooled cold rail at the one end of the socket, and a thermal spreader to couple the electronics card to the cold rail. The thermal spreader includes first and second thermal transfer plates coupled to first and second surfaces on opposite sides of the card, and thermally conductive extensions extending from end edges of the plates, which couple the respective transfer plates to the liquid-cooled cold rail. The extensions are disposed to the sides of the latch, and the card is securable within or removable from the socket using the latch without removing the cold rail or the thermal spreader.

  2. Review on Malaysian Rail Transit Operation and Management System: Issues and Solution in Integration

    NASA Astrophysics Data System (ADS)

    Masirin, Mohd Idrus Mohd; Salin, Aminah Mohd; Zainorabidin, Adnan; Martin, David; Samsuddin, Norshakina

    2017-08-01

    In any context, operation and management of transportation systems are key issues which may affect both life quality and economic development. In large urban agglomerations, an efficient public transportation system may help abate the negative externalities of private car use such as congestion, air and noise pollution, accident and fuel consumption, without excessively penalizing user travel times or zone accessibility. Thus, this study is conducted to appraise the Malaysian rural rail transit operation and management system, which are considered important as there are many issues and solution in integration of the services that need to be tackled more conscientiously. The purpose of this paper is to describe some of the most important issues on integration of services and rail transit system in Malaysian and how to solve or reduce these problems and conflicts. In this paper, it consists of the historical development of rail transit construction in Malaysia. This paper also attempts to identify the important issues related to rail transit services and integration in Malaysian rural rail operation and management system. Comparison is also conducted with other countries such as UK, France, and Japan. Finally, a critical analysis is presented in this paper by looking at the possible application for future Malaysian rail transit operation system and management, especially focusing on enhancing the quality of Malaysian rural rail transit. In conclusion, this paper is expected to successfully review and appraise the existing Malaysian rural rail transit operation and management system pertaining to issues & solution in integration. It is also hoped that reformation or transformation of present service delivery quality of the rail transit operation and management will enable Malaysia to succeed in transforming Malaysian transportation system to greater heights.

  3. Concept of Integrated Information Systems of Rail Transport

    NASA Astrophysics Data System (ADS)

    Siergiejczyk, Mirosław; Gago, Stanisław

    This paper will present a need to create integrated information systems of the rail transport and their links with other means of public transportation. IT standards will be discussed that are expected to create the integrated information systems of the rail transport. Also the main tasks will be presented of centralized information systems, the concept of their architecture, business processes and their implementation as well as the proposed measures to secure data. A method shall be proposed to implement a system to inform participants of rail transport in Polish conditions.

  4. USDOT Integrated Corridor Management (ICM) Initiative Transit Data Gaps for Rail Transit Systems Initial Planning Workshop Notes

    DOT National Transportation Integrated Search

    2008-06-23

    This document presents the notes taken at the USDOT Integrated Corridor Management (ICM) Transit Data Gaps for Rail Transit Systems Initial Planning Workshop. Different scenarios for handling increased demand on rail and bus transit systems are discu...

  5. 4. DETAIL OF CAST AND WROUGHT IRON RAILING WITH SUPPORTING ...

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

    4. DETAIL OF CAST AND WROUGHT IRON RAILING WITH SUPPORTING STRUCTURES AND STEEL BEAM, FROM THE NORTH BANK LOOKING SOUTHEAST AT THE WEST (UPSTREAM) SIDE - Railroad Avenue Bridge, Spanning Mispillion River on Church Street, Milford, Sussex County, DE

  6. Fracture mechanics approach to estimate rail wear limits

    DOT National Transportation Integrated Search

    2009-10-01

    This paper describes a systematic methodology to estimate allowable limits for rail head wear in terms of vertical head-height loss, gage-face side wear, and/or the combination of the two. This methodology is based on the principles of engineering fr...

  7. Computer circuit card puller

    NASA Technical Reports Server (NTRS)

    Sawyer, R. V.; Szuwalski, B. (Inventor)

    1981-01-01

    The invention generally relates to hand tools, and more particularly to an improved device for facilitating removal of printed circuit cards from a card rack characterized by longitudinal side rails arranged in a mutually spaced parallelism and a plurality of printed circuit cards extended between the rails of the rack.

  8. 78 FR 57450 - State Rail Plan Guidance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... development of State rail plans, as appropriate. A commenter recommended that the FRA Regional Manager be... integration of State rail plan development within the statewide/nonmetropolitan transportation planning... Guidance is to describe the processes for the development, submission, and acceptance of State rail plans...

  9. Propagation of a finite bubble in a Hele-Shaw channel of variable depth

    NASA Astrophysics Data System (ADS)

    Juel, Anne; Franco-Gomez, Andres; Thompson, Alice; Hazel, Andrew

    2017-11-01

    We study the propagation of finite bubbles in a Hele-Shaw channel, where a centred rail is introduced to provide a small axially-uniform depth constriction. We demonstrate experimentally that this channel geometry can be used as a passive sorting device. Single air bubbles carried within silicone oil are generally transported on one side of the rail. However, for flow rates marginally larger than a critical value, a narrow band of bubble sizes on the order of the rail width can propagate over the rail, while bubbles of other sizes segregate to the side of the rail. The width of this band of bubble sizes increases with flow rate and the size of the most stable bubble can be tuned by varying the rail width. We present a depth-averaged theory which reveals that the mechanism relies on a non-trivial interaction between capillary and viscous forces that is fully dynamic, rather than being a simple modification of capillary static solutions. In contrast, for larger bubbles and sufficiently large imposed flow rates, we find that initially centred bubbles do not converge onto a steady mode of propagation. Instead they transiently explore weakly unstable steady modes, an evolution which results in their break-up and eventual settling into a steady state of changed topology. The financial support of CONICYT and the Leverhulme Trust are gratefully acknowledged.

  10. 76 FR 37025 - Make Inoperative Exemptions; Vehicle Modifications To Accommodate People With Disabilities, Side...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... the seat. Many vehicles will depend on side impact air bag technology to meet all of the injury... installing side air bags in vehicle seats and/or door panels and side roof rails. The phase-in of the... expressed concern that: ``* * * torso side air bags are commonly installed in the outboard side of the OEM...

  11. 75 FR 59674 - Make Inoperative Exemptions; Vehicle Modifications To Accommodate People With Disabilities, Side...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-28

    ... that many vehicles will depend on side impact air bag technology to meet all of the injury criteria of... ``lead to the installation of new technologies, such as side curtain air bags and torso side air bags... is side air bag technology incorporated in the vehicle's roof rail (side air bag curtain), door, and...

  12. Commuter rail seat testing and analysis.

    DOT National Transportation Integrated Search

    2002-07-31

    The need to determine the structural integrity and passenger safety provided by existing commuter rail seats was identified by the Construction/Structural Subgroup of the American Public Transportation Association's (APTA) Passenger Rail Equipment Sa...

  13. 46 CFR 69.203 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ..., excluding rub rails, from the outboard side of the skin (outside planking or plating) on one side of the hull to the outboard side of the skin on the other side of the hull. Overall depth means the vertical distance taken at or near midships from a line drawn horizontally through the uppermost edges of the skin...

  14. 4. AFRD WAREHOUSE, WEST SIDE DETAIL OF ALTERED SLIDING DOORS, ...

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

    4. AFRD WAREHOUSE, WEST SIDE DETAIL OF ALTERED SLIDING DOORS, FACING EAST. WEATHER COVER OVER RAIL IS ORIGINAL. SHEET METAL SIDING HAS BEEN INSERTED BETWEEN TWO HALVES OF SLIDING DOORS. - Minidoka Relocation Center Warehouse, 111 South Fir Street, Shoshone, Lincoln County, ID

  15. Li Experiments at the Tokamak T-11M Toward PFC Concept of Steady State Tokamak-Reactor

    NASA Astrophysics Data System (ADS)

    Mirnov, S. V.

    2009-11-01

    As practical method of using a liquid lithium as a renewable plasma-facing component (PCF) for steady state tokamak-reactor the concept of lithium emitter-collector is considered [1]. It is based on lithium filled capillary porous system proposed by V.A. Evtikhin et al. (1996). The lithium circulation process consists of four steps: (1) Li emission from the PFC emitter into the plasma; (2) plasma boundary cooling by non-coronal Li radiation; (3) Li ion capture by the collector (before they are lost to the tokamak chamber wall); (4) Li return from the collector to the emitter. T-11M tokamak experiments have used three local rail limiters made from lithium, molybdenum and graphite as lithium collectors. The lithium behavior was studied by analysis of the witness samples, and by a mobile graphite probe. The key findings are: (1) lithium collection on the ion side of the lithium limiter is 2-3 times larger than on the electron side; (2) total efficiency of Li collection integrated over all three rail limiters can reach 50-70% of the lithium emission during the discharge pulse, while the theoretical limit is about 90%. [1] S.V. Mirnov, J. Nucl. Mat., 390-391, 876 (2009).

  16. Progress in rail integrity research

    DOT National Transportation Integrated Search

    2001-10-01

    This report describes the work conducted over the past two decades on rail integrity research sponsored by the Federal Railroad Administration (FRA) and carried out by the Volpe National Transportation Systems Center. The research has involved both e...

  17. Methods for Joining of Rails : Survey Report

    DOT National Transportation Integrated Search

    1977-07-01

    The performance of track structures depends greatly on the integrity of the connections between rail sections. Because the majority of service and detected rail failures occur at joints, particularly conventional bolted joints, this survey was conduc...

  18. Environmental impact assessment of rail infrastructure.

    DOT National Transportation Integrated Search

    2016-01-29

    This project resulted in three products: a comprehensive "Sustainable Rail Checklist," a rail planning GIS database, and a web GIS tool that integrates sustainability metrics and facilitates a rapid assessment before a formal NEPA process is implemen...

  19. 77 FR 64249 - Track Safety Standards; Improving Rail Integrity

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-19

    ... specific problems. This is a result of high traffic volumes that load the rail and accelerate defect growth... influenced by tonnage. Rapid growth rates can also be associated with rail where high-tensile residual stresses are present in the railhead and in CWR in lower temperature ranges where the rail is in high...

  20. An automated system for rail transit infrastructure inspection.

    DOT National Transportation Integrated Search

    2015-03-01

    This project applied commercial remote sensing and spatial information (CRS&SI) : technologies such as Ground Penetrating Radar (GPR), laser, GIS, and GPS to passenger rail : inspections. An integrated rail inspection system that can be mounted on hi...

  1. 75 FR 1447 - Alaska Railroad Corporation-Construction and Operation Exemption-Rail Line Between North Pole and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-11

    ... Railroad Corporation--Construction and Operation Exemption--Rail Line Between North Pole and Delta Junction... of North Pole (located just south of Fairbanks) to the southern side of the community of Delta... Railroad Administration, U.S. Air Force 354th Fighter Wing Command from Eielson Air Force Base, U.S. Army...

  2. 3. East side, details of north half of east web; ...

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

    3. East side, details of north half of east web; also details of roadway, railing and overhead bracing; looking northeast - Dodd Ford Bridge, County Road 147 Spanning Blue Earth River, Amboy, Blue Earth County, MN

  3. Field validation of polyurethane technology in remediating rail substructure and enhancing rail freight capacity.

    DOT National Transportation Integrated Search

    2016-10-01

    Railways are an important component of a multi-modal freight transport network. The structural integrity of rail substructure and problematic railway elements can be compromised leading to track instability and ultimately, train derailments. Because ...

  4. High-Speed Rail and Local Land Development : Case Studies in London and Las Vegas

    DOT National Transportation Integrated Search

    2017-11-01

    The efficacy of a high-speed rail system depends, in part, upon locating rail stations close to urban centers and integrating them into broader transportation networks and the urban realm. In addition, through economies of agglomeration, successful h...

  5. INTERIOR OF BOILER BUILDING, FIRST LEVEL, EAST SIDE, SHOWING STEAMDRIVEN ...

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

    INTERIOR OF BOILER BUILDING, FIRST LEVEL, EAST SIDE, SHOWING STEAM-DRIVEN PISTON PUMPS FOR FUEL OIL, CAMERA FACING EAST. - New Haven Rail Yard, Central Steam Plant and Oil Storage, Vicinity of Union Avenue, New Haven, New Haven County, CT

  6. 5. EXTERIOR OF NORTH SIDE SHOWING ENCLOSED FRONT PORCH AREA, ...

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

    5. EXTERIOR OF NORTH SIDE SHOWING ENCLOSED FRONT PORCH AREA, ALUMINUM SLIDING GLASS WINDOW GLAZING REPLACEMENTS, AND RAILING FOR STAIRS TO BASEMENT. VIEW TO SOUTHWEST. - Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Creek, Bishop, Inyo County, CA

  7. 2. NORTH AND WEST SIDES OF BUILDING 422. VIEW TO ...

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

    2. NORTH AND WEST SIDES OF BUILDING 422. VIEW TO SOUTHEAST. - Rocky Mountain Arsenal, Administration-Laboratory- Change House-Bomb Rail, 420 feet South of December Seventh Avenue; 530 feet West of D Street, Commerce City, Adams County, CO

  8. 1. SOUTH AND EAST SIDES OF BUILDING 422. VIEW TO ...

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

    1. SOUTH AND EAST SIDES OF BUILDING 422. VIEW TO NORTHWEST. - Rocky Mountain Arsenal, Administration-Laboratory- Change House-Bomb Rail, 420 feet South of December Seventh Avenue; 530 feet West of D Street, Commerce City, Adams County, CO

  9. PERSPECTIVE VIEW LOOKING SOUTHWEST AT THE EAST SIDE OF THE ...

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

    PERSPECTIVE VIEW LOOKING SOUTHWEST AT THE EAST SIDE OF THE CYANAMIDE (L-N) OVEN BUILDING. PIECES OF A DISASSEMBLED RAIL CAR IN FOREGROUND. - United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Muscle Shoals, Colbert County, AL

  10. 10. LIGHT TOWER, VIEW NORTHEAST FROM LIGHT PLATFORM, SOUTHWEST SIDE ...

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

    10. LIGHT TOWER, VIEW NORTHEAST FROM LIGHT PLATFORM, SOUTHWEST SIDE OF BOAT HOUSE AND KEEPER'S HOUSE, WITH DETAIL OF RAILING IN FOREGROUND - Grindle Point Light Station, Western end of Ferry Road on Grindle Point, Islesboro, Waldo County, ME

  11. Results from a survey of transportation professionals regarding the return on investment for passenger rail.

    DOT National Transportation Integrated Search

    2016-08-01

    This paper aims to build an integrative understanding of the kinds of benefits that accrue from passenger rail investment. This research investigates by conducting a (1) literature review on the return on investment for passenger rail, (2) creates/an...

  12. Control of rail integrity by self-adaptive scheduling of rail tests

    DOT National Transportation Integrated Search

    1990-06-01

    A guide for the scheduling of in-service tests of rail to detect defects is presented. The guide is designed for self-adaptation to changing track conditions, as reflected by the total rate of defect occurrence per test, the rate of 'service' defect ...

  13. 31. DETAIL VIEW OF ELECTRIC WINCH AND CABLE SYSTEM, SOUTH ...

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

    31. DETAIL VIEW OF ELECTRIC WINCH AND CABLE SYSTEM, SOUTH SIDE OF MILL HOUSE, USED TO WINCH RAIL CARS INTO LOADING POSITION, LOOKING NORTHEAST - Sperry Corn Elevator Complex, Weber Avenue (North side), West of Edison Street, Stockton, San Joaquin County, CA

  14. Integration of transit and land use : a study of Los Angeles rail transit stations

    DOT National Transportation Integrated Search

    2003-01-01

    This study focuses on transit-oriented development at rail transit stations in Los Angeles. It reviews the development of rail transit and land use in Los Angeles and looks at four specific station sites to see what is contributing to or hindering tr...

  15. No damage to rail cars or SRB segments in derailment

    NASA Technical Reports Server (NTRS)

    2000-01-01

    One of two solid rocket booster rail cars is off the track after being involved in a minor derailment incident during a routine movement on the tracks. The rail cars were being moved as part of a standard operation to '''order''' the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area.

  16. No damage to rail cars or SRB segments in derailment

    NASA Technical Reports Server (NTRS)

    2000-01-01

    After being involved in a minor derailment incident during a routine movement on the tracks, rail cars carrying solid rocket booster segments sit idle. The rail cars were being moved as part of a standard operation to '''order''' the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area.

  17. Economic and demographic impacts of passenger rail systems : the impact of intercity passenger rails on population and employment change in the United States, 2000-2010.

    DOT National Transportation Integrated Search

    2015-12-01

    This research examines the impact of intercity passenger rails on change in population and employment at the county level in the continental United States from 2000 to 2010. This research adopts an integrated spatial regression approach that incorpor...

  18. Analysis of Energy-Absorbing Foundations.

    DTIC Science & Technology

    1978-12-15

    side rails. At the top of the rebound, air brakes are automatically activated which press against the rails and stop the table, preventing a second...for the same application to automobile bumpers , was greater than that used in an alternate design in which the tube was crushed axially, so it appears...shock mounts prepared by Burns [48]. Typi- cal non-linear, elastic, load-deflection curves are given for helical springs, pneumatic cylinders, hydraulic

  19. Optimization of wheel-rail interface friction using top-of-rail friction modifiers: State of the art

    NASA Astrophysics Data System (ADS)

    Khan, M. Roshan; Dasaka, Satyanarayana Murty

    2018-05-01

    High Speed Railways and Dedicated Freight Corridors are the need of the day for fast and efficient transportation of the ever growing population and freight across long distances of travel. With the increase in speeds and axle loads carried by these trains, wearing out of rails and train wheel sections are a common issue, which is due to the increase in friction at the wheel-rail interfaces. For the cases where the wheel-rail interface friction is less than optimum, as in case of high speed trains with very low axle loads, wheel-slips are imminent and loss of traction occurs when the trains accelerate rapidly or brake all of a sudden. These vast variety of traction problems around the wheel-rail interface friction need to be mitigated carefully, so that the contact interface friction neither ascents too high to cause material wear and need for added locomotive power, nor be on the lower side to cause wheel-slips and loss of traction at high speeds. Top-of-rail friction modifiers are engineered surface coatings applied on top of rails, to maintain an optimum frictional contact between the train wheels and the rails. Extensive research works in the area of wheel-rail tribology have revealed that the optimum frictional coefficients at wheel-rail interfaces lie at a value of around 0.35. Application of top-of-rail (TOR) friction modifiers on rail surfaces add an extra layer of material coating on top of the rails, with a surface frictional coefficient of the desired range. This study reviews the common types of rail friction modifiers, the methods for their application, issues related with the application of friction modifiers, and a guideline on selection of the right class of coating material based on site specific requirements of the railway networks.

  20. 18. VIEW OF EAST SIDE INTERIOR OF MST AT STATIONS ...

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

    18. VIEW OF EAST SIDE INTERIOR OF MST AT STATIONS 3 AND 12, FACING WEST. COMPRESSED AIR TANK AND GENERATOR AT STATION 3. CURTAIN FOR NORTH ENVIRONMENTAL DOOR VISIBLE ON LEFT SIDE OF PHOTOGRAPH; RAIL VISIBLE AT BOTTOM OF PHOTOGRAPH. - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 East, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  1. 6. AN IMAGE OF LOOKING NORTHEAST FROM THE DOWNSTREAM SIDE ...

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

    6. AN IMAGE OF LOOKING NORTHEAST FROM THE DOWNSTREAM SIDE OF THE BRIDGE, SHOWING THE ENTRADOS, SOLID-RAIL PARAPET, THE BEAM, THE NORTHWEST ABUTMENT AND PART OF THE PIER. - Cement Plant Road Bridge, Spanning Leatherwood Creek on County Road 50 South, Bedford, Lawrence County, IN

  2. Public transit research: Rail, bus, and new technology, 1991. Transportation Research Record

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

    Kassabian, N.C.; Tobias, A.G.; Crayton, L.

    1991-01-01

    The report contains: Image of Rail Transit; Train Operations Computer Simulation Case Study: Single-Tracking Operations for Philadelphia's Market-Frankford Subway Elevated Rail Rapid Transit Line; Transit Railcar Quantities: Scale Economies; Evaluation of Training Programs in Rail Transit: Its Role and Status; Methodology for Evaluating Out-of-Direction Bus Route Segments; Integration of Fixed- and Flexible-Route Bus Systems; Downtown Space for Buses--The Manhattan Experience; Implications of Transit Drug Testing and Maintenance Service Procurement for Small Urban and Rural Systems; Challenges for Integration of Alternative Fuels in the Transit Industry; Short History of the Transbay Transit Terminal and the Relocation of the San Francisco Greyhoundmore » Depot Thereto; Airport Development with Automated People Mover Systems; Review of Four Alternative Airport Terminal Passenger Mobility Systems.« less

  3. U.S. Movements of Crude Oil By Rail

    EIA Publications

    2017-01-01

    U.S. Movements of Crude Oil By Rail includes new data on crude oil transported by railroad. This product will fully integrate EIA's petroleum supply and disposition data along with pipeline, tanker, and barge data. Fully incorporating crude-by-rail movements improves EIA's regional petroleum balances by reducing regional crude oil adjustments (unaccounted for crude oil).

  4. 43. TOP PART OF UMBILICAL MAST, NORTH AND WEST SIDES. ...

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

    43. TOP PART OF UMBILICAL MAST, NORTH AND WEST SIDES. AIR CONDITIONING DUCTING IS VISIBLE ON INTERIOR OF MAST. RAIL IS VISIBLE LEFT OF THE MAST. - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 East, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  5. 18. View of Tombigbee River Bridge facing east showing upstream ...

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

    18. View of Tombigbee River Bridge facing east showing upstream side of bridge opposite broken railing located on the downstream side. Fallen power pole and telephone cable is shown in the center of the photograph. - Tombigbee River Bridge, Spanning Tombigbee River at State Highway 182, Columbus, Lowndes County, MS

  6. 123. Pre1911. View forward from near mizzen hatch, starboard side ...

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

    123. Pre-1911. View forward from near mizzen hatch, starboard side showing crew standing on a load of lumber. Note main fife rail, small hatch with cover (possibly original 'lime juice hatch') just aft. Fred Heick Collection. - Ship BALCLUTHA, 2905 Hyde Street Pier, San Francisco, San Francisco County, CA

  7. 124. Pre1911. View forward from mizzen shrouds, starboard side; Chinese ...

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

    124. Pre-1911. View forward from mizzen shrouds, starboard side; Chinese cannery workers boarding ship from barge, S/V BENJAMIN F. PACKARD in background. Note main fife rail with fresh water pump. Fred Heick Collection. (G12.799) - Ship BALCLUTHA, 2905 Hyde Street Pier, San Francisco, San Francisco County, CA

  8. A capping case study : integrating freight rail into a community setting.

    DOT National Transportation Integrated Search

    2011-11-01

    "This investigation seeks to explore specific design solutions that could potentially enhance the capabilities of heavy rail facilities while increasing : their safety and reducing their environmental and community impacts. : Using Portland's Brookly...

  9. Contamination of environmental surfaces by methicillin-resistant Staphylococcus aureus (MRSA) in rooms of inpatients with MRSA-positive body sites.

    PubMed

    Kurashige, E Jessica Ohashi; Oie, Shigeharu; Furukawa, H

    2016-01-01

    Methicillin-resistant Staphylococcus aureus (MRSA) can contaminate environmental surfaces that are frequently touched by the hands of patients with MRSA colonization/infection. There have been many studies in which the presence or absence of MRSA contamination was determined but no studies in which MRSA contamination levels were also evaluated in detail. We evaluated MRSA contamination of environmental surfaces (overbed tables, bed side rails, and curtains) in the rooms of inpatients from whom MRSA was isolated via clinical specimens. We examined the curtains within 7-14 days after they had been newly hung. The environmental surfaces were wiped using gauze (molded gauze for wiping of surface bacteria; 100% cotton, 4cm×8cm) moistened with sterile physiological saline. The MRSA contamination rate and mean counts (range) were 25.0% (6/24 samples) and 30.6 (0-255)colony-forming units (cfu)/100cm(2), respectively, for the overbed tables and 31.6% (6/19 samples) and 159.5 (0-1620)cfu/100cm(2), respectively, for the bed side rails. No MRSA was detected in 24 curtain samples. The rate of MRSA contamination of environmental surfaces was high for the overbed tables and bed side rails but low for the curtains. Therefore, at least until the 14th day of use, frequent disinfection of curtains may be not necessary. Copyright © 2016. Published by Elsevier Editora Ltda.

  10. Measurement Of The Deformation Of Rail Track Fastening Clips By Holographic Interferometry

    NASA Astrophysics Data System (ADS)

    Ennos, A. E.

    1985-01-01

    One method of attaching railway rails to the sleepers (ties) is to use spring steel clips, mounted on either side of the rail, that exert a downward force on the foot of the rail. In service these will flex with the passing of a train. Holographic interferometry has been used to measure quantitatively the manner in which the spring clips deform when the rail is given a displacement in a prescribed direction. The information can be used both to provide data on the bending and torsion of the clip, and as a means of testing the validity of finite element analysis calculations. Measurements on three different designs of commercial clip were carried out on a section of sleeper holding a short length of rail. A controlled upward displacement of the rail was achieved pneumatically by means of plastic pipes interposed between rail and concrete sleeper. Double exposure holograms were recorded on large photographic plates, allowing views of the fringe patterns from widely spaced directions. The three components of displacement at points along the length of the clip were calculated from fringe information taken from nine directions, using least squares fit to obtain increased accuracy. Rotations of the surface were calculated from the fringe directions and spacings. In addition to deformation measurements of the clip under service conditions, information on local yielding of the clip under increasing stress was also obtained by means of real-time interferometry, using an instant hologram camera.

  11. Rail assembly for use in a radioactive environment

    DOEpatents

    Watts, Ralph E.

    1989-01-01

    An improved rail assembly and method of construction thereof is disclosed herein that is particularly adapted for use with a crane trolley in a hot cell environment which is exposed to airborne and liquidborne radioactive contaminants. The rail assembly is generally comprised of a support wall having an elongated, rail-housing recess having a floor, side wall and ceiling. The floor of the recess is defined at least in part by the load-bearing surface of a rail, and is substantially flat, level and crevice-free to facilitate the drainage of liquids out of the recess. The ceiling of the recess overhangs and thereby captures trolley wheels within the recess to prevent them from becoming dislodged from the recess during a seismic disturbance. Finally, the interior of the recess includes a power track having a slot for receiving a sliding electrical connector from the crane trolley. The power track is mounted in an upper corner of the recess with its connector-receiving groove oriented downwardly to facilitate the drainage of liquidborne contaminants and to discourage the collection of airborne contaminants within the track.

  12. Intercity passenger rail : implications for urban, regional, and national mobility.

    DOT National Transportation Integrated Search

    2012-01-01

    Recent policy and regulatory actions by the U.S. government have revived interest in intercity passenger : rail among transportation planners, policymakers, and the general public. As part of a fully integrated : multimodal intercity corridor, passen...

  13. Rail integrity alert system (RIAS) feature discrimination : final report.

    DOT National Transportation Integrated Search

    2016-08-01

    This report describes GE Global Researchs research, in partnership with GE Transportation, into developing and deploying : algorithms for a locomotive-based inductive sensing system that has a very high probability of detecting broken rails with v...

  14. 46 CFR 169.323 - Furniture and furnishings.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... other material having equivalent fire resistant qualities. (e) Trash receptacles must be constructed of non-combustible materials with solid sides and bottoms and have solid noncombustible covers. Rails and...

  15. 46 CFR 169.323 - Furniture and furnishings.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... other material having equivalent fire resistant qualities. (e) Trash receptacles must be constructed of non-combustible materials with solid sides and bottoms and have solid noncombustible covers. Rails and...

  16. 46 CFR 169.323 - Furniture and furnishings.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... other material having equivalent fire resistant qualities. (e) Trash receptacles must be constructed of non-combustible materials with solid sides and bottoms and have solid noncombustible covers. Rails and...

  17. KSC00pp0939

    NASA Image and Video Library

    2000-07-20

    After being involved in a minor derailment incident during a routine movement on the tracks, rail cars carrying solid rocket booster segments sit idle. The rail cars were being moved as part of a standard operation to “order” the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area

  18. KSC-00pp0939

    NASA Image and Video Library

    2000-07-20

    After being involved in a minor derailment incident during a routine movement on the tracks, rail cars carrying solid rocket booster segments sit idle. The rail cars were being moved as part of a standard operation to “order” the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area

  19. Occupant Volume Integrity Evaluation in Passenger Rail Cars

    DOT National Transportation Integrated Search

    2012-02-01

    This research, which is intended to enable the growth of high-speed and intercity passenger rail transportation, was sponsored by the Federal Railroad Administration (FRA) Office of Research and Development, as part of the train Occupant Protection r...

  20. Occupant volume integrity evaluation in passenger rail cars.

    DOT National Transportation Integrated Search

    2012-02-01

    This research, which is intended to enable the growth of high-speed and intercity passenger rail transportation, was sponsored by the Federal Railroad Administration (FRA) Office of Research and Development, as part of the train Occupant Protection r...

  1. Integrated prioritization method for active and passive highway-rail crossings.

    DOT National Transportation Integrated Search

    2013-01-01

    This two-year research project developed a prioritization system for highway-rail at-grade crossings that addressed the following major concerns: (1) warrants to identify low-volume, passive crossings with risk factors; (2) a broader priority index t...

  2. Integrating light rail transit into traditional bus systems

    DOT National Transportation Integrated Search

    2007-07-01

    This document identifies those dynamics that facilitate a citys addition of light rail as a successful component of its urban system, with success deemed to be opening on schedule with minimal start-up issues. The study examines several new system...

  3. Integration of passenger and freight rail scheduling : final report.

    DOT National Transportation Integrated Search

    2017-02-02

    In the United States, freight railway are one of the major way to transport goods from ports to inland destinations. According to an Association of American Railroad's study, rail companies move more than 40% of the nation's total freight. Given the ...

  4. KSC-00pp0934

    NASA Image and Video Library

    2000-07-20

    One of two solid rocket booster rail cars is off the track after being involved in a minor derailment incident during a routine movement on the tracks. The rail cars were being moved as part of a standard operation to “order” the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area

  5. KSC00pp0934

    NASA Image and Video Library

    2000-07-20

    One of two solid rocket booster rail cars is off the track after being involved in a minor derailment incident during a routine movement on the tracks. The rail cars were being moved as part of a standard operation to “order” the cars, placing them into a proper sequence for upcoming segment processing activities. The rear wheels of one car and the front wheels of the car behind it slid off the tracks while passing through a railway switch onto a siding. They were traveling approximately 3 miles per hour at the time, about normal walking speed. No damage occurred to the SRB segments, or to the devices that secure the segments to the rail cars. The incident occurred on KSC property, just north of the NASA Causeway in the KSC Industrial Area

  6. Resonant tunneling of 1-dimensional electrons across an array of 3-dimensionally confined potential wells

    NASA Astrophysics Data System (ADS)

    Allee, D. R.; Chou, S. Y.; Harris, J. S.; Pease, R. F. W.

    A lateral resonant tunneling field effect transistor has been fabricated with a gate electrode in the form of a railway such that the two rails form a lateral double barrier potential at the GaAs/AlGaAs interface. The ties confine the electrons in the third dimension forming an array of potential boxes or three dimensionally confined potential wells. The width of the ties and rails is 50nm; the spacings between the ties and between the two rails are 230nm and 150nm respectively. The ties are 750nm long and extend beyond the the two rails forming one dimensional wires on either side. Conductance oscillations are observed in the drain current at 4.2K as the gate voltage is scanned. Comparison with devices with a solid gate, and with a monorail gate with ties fabricated on the same wafer suggest that these conductance oscillations are electron resonant tunneling from one dimensional wires through the quasi-bound states of the three dimensionally confined potential wells. Comparison with a device with a two rail gate without ties (previously published) indicates that additional confinement due to the ties enhances the strength of the conductance oscillations.

  7. Integrated dynamic modeling of rail vehicles and infrastructure : modeling switch geometry.

    DOT National Transportation Integrated Search

    2015-08-27

    Many procedures have been proposed to solve the wheel/rail contact problem, most of which belong to one of two categories: off-line and on-line contact search methods. This investigation is focused on the development of a contact surface model for th...

  8. System and prospects of China's intercity rail transit technology

    NASA Astrophysics Data System (ADS)

    Gong, Ming

    2018-06-01

    City clusters and metropolitan areas in China are flourishing in the midst of the deepening urbanization in the country, thereby resulting in the emergence of intercity rail transit. Intercity railways connect mainline and urban railways for an integrated regional transportation system that underpins and leads the development of city clusters and metropolitan areas. This study explores the development mode and service characteristics of intercity rail transit, as well as proposes overviews on this system and prospects of its future technology in China.

  9. 49 CFR 173.4 - Small quantities for highway and rail.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... drops made from a height of 1.8 m (5.9 feet) directly onto a solid unyielding surface without breakage... package: (A) One drop flat on bottom; (B) One drop flat on top; (C) One drop flat on the long side; (D) One drop flat on the short side; and (E) One drop on a corner at the junction of three intersecting...

  10. 16. ARAII Administration building ARA613. South (front) and east sides. ...

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

    16. ARA-II Administration building ARA-613. South (front) and east sides. Camera facing northwest. Sign at left corner of building says, "Fuels and materials division, materials joining research and development laboratory." Part of south wall already has been demolished. Sign on roof railing says, "Danger--Abestos." Ineel photo no. 2-3. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

  11. Range-wide wetland associations of the King Rail: A multi-scale approach

    USGS Publications Warehouse

    Glisson, Wesley J.; Conway, Courtney J.; Nadeau, Christopher P.; Borgmann, Kathi L.; Laxson, Thomas A.

    2015-01-01

    King Rail populations have declined and identifying wetland features that influence King Rail occupancy can help prevent further population declines. We integrated continent-wide marsh bird survey data with spatial wetland data from the National Wetland Inventory (NWI) to examine wetland features that influenced King Rail occupancy throughout the species’ range. We analyzed wetland data at 7 spatial scales to examine the scale(s) at which 68 wetland features were most strongly related to King Rail occupancy. Occupancy was most strongly associated with estuarine features and brackish and tidal saltwater regimes. King Rail occupancy was positively associated with emergent and scrub-shrub wetlands and negatively associated with forested wetlands. The best spatial scale for assessing King Rail occupancy differed among wetland features; we could not identify one spatial scale (among all wetland features) that best explained variation in occupancy. Future research on King Rail habitat that includes multiple spatial scales is more likely to identify the suite of features that influence occupancy. Our results indicate that NWI data may be useful for predicting occupancy based on broad habitat features across the King Rail’s range, which may help inform management decisions for this and other wetland-dependent birds.

  12. Comparisons between designs for single-sided linear electric motors: Homopolar synchronous and induction

    NASA Astrophysics Data System (ADS)

    Nondahl, T. A.; Richter, E.

    1980-09-01

    A design study of two types of single sided (with a passive rail) linear electric machine designs, namely homopolar linear synchronous machines (LSM's) and linear induction machines (LIM's), is described. It is assumed the machines provide tractive effort for several types of light rail vehicles and locomotives. These vehicles are wheel supported and require tractive powers ranging from 200 kW to 3735 kW and top speeds ranging from 112 km/hr to 400 km/hr. All designs are made according to specified magnetic and thermal criteria. The LSM advantages are a higher power factor, much greater restoring forces for track misalignments, and less track heating. The LIM advantages are no need to synchronize the excitation frequency precisely to vehicle speed, simpler machine construction, and a more easily anchored track structure. The relative weights of the two machine types vary with excitation frequency and speed; low frequencies and low speeds favor the LSM.

  13. 48 CFR 3052.247-70 - F.o.b. origin information.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... nearest public rail siding and of the carrier serving it; and (d) The quantity of supplies to be shipped.... origin, freight allowed,” add the following paragraph to the basic provision: (e) The basis on which...

  14. 48 CFR 3052.247-70 - F.o.b. origin information.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... nearest public rail siding and of the carrier serving it; and (d) The quantity of supplies to be shipped.... origin, freight allowed,” add the following paragraph to the basic provision: (e) The basis on which...

  15. 48 CFR 3052.247-70 - F.o.b. origin information.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... nearest public rail siding and of the carrier serving it; and (d) The quantity of supplies to be shipped.... origin, freight allowed,” add the following paragraph to the basic provision: (e) The basis on which...

  16. 48 CFR 3052.247-70 - F.o.b. origin information.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... nearest public rail siding and of the carrier serving it; and (d) The quantity of supplies to be shipped.... origin, freight allowed,” add the following paragraph to the basic provision: (e) The basis on which...

  17. 2. EXTERIOR OF FRONT (EAST SIDE) OF BUILDING 105 SHOWING ...

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

    2. EXTERIOR OF FRONT (EAST SIDE) OF BUILDING 105 SHOWING RECESSED PORCH FRAMED BY CRISS-CROSS WOOD BALUSTRADE, STONE FACING ALONG ORIGINAL PORTION OF HOUSE FRONT, AND ORIGINAL PLANK DOOR TO PORCH BASEMENT AT LOWER PHOTO CENTER. WELDED STEEL PORCH RAILINGS VISIBLE AT PHOTO LEFT CENTER WERE ADDED IN 1972. VIEW TO NORTHWEST. - Rush Creek Hydroelectric System, Worker Cottage, Rush Creek, June Lake, Mono County, CA

  18. 69. GENERAL VIEW OF SOUTH SIDE OF SLC3W LIQUID OXYGEN ...

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

    69. GENERAL VIEW OF SOUTH SIDE OF SLC-3W LIQUID OXYGEN APRON. EQUIPMENT SKIDS IN FOREGROUND. LARGE LIQUID OXYGEN TANKS FLANKING NITROGEN GAS STORAGE TANKS VISIBLE BEHIND SKIDS. LAUNCH DECK VISIBLE IMMEDIATELY WEST. MST IN PARKED POSITION AT NORTHERN TERMINUS OF RAILS IN BACKGROUND. - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 West, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  19. 19. PRIVATE SIDE ENTRANCE ADDED IN 1921 TO GIVE BARRIERFREE ...

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

    19. PRIVATE SIDE ENTRANCE ADDED IN 1921 TO GIVE BARRIER-FREE ACCESS FROM THE DRIVEWAY TO THE ELEVATOR. Wrought iron railings, extended upper step of stoop (indicated by the darker concrete between the two vertical posts), and wooden ramp added by the National Trust to meet modern barrier-free access codes, circa 1980. - Woodrow Wilson House, 2340 South S Street, Northwest, Washington, District of Columbia, DC

  20. Three integrated projects to enhance non-contact rail inspection technology for application to substructure health evaluation on both rail and road bridges : final project report.

    DOT National Transportation Integrated Search

    2014-01-01

    Causing loss of use and sometimes life, bridge collapses are always high profile and hit many wallets. The economic benefits of condition-based maintenance are well established, including reduced visual inspection and potentially longer structural li...

  1. Integrated risk reduction framework to improve railway hazardous materials transportation safety.

    PubMed

    Liu, Xiang; Saat, M Rapik; Barkan, Christopher P L

    2013-09-15

    Rail transportation plays a critical role to safely and efficiently transport hazardous materials. A number of strategies have been implemented or are being developed to reduce the risk of hazardous materials release from train accidents. Each of these risk reduction strategies has its safety benefit and corresponding implementation cost. However, the cost effectiveness of the integration of different risk reduction strategies is not well understood. Meanwhile, there has been growing interest in the U.S. rail industry and government to best allocate resources for improving hazardous materials transportation safety. This paper presents an optimization model that considers the combination of two types of risk reduction strategies, broken rail prevention and tank car safety design enhancement. A Pareto-optimality technique is used to maximize risk reduction at a given level of investment. The framework presented in this paper can be adapted to address a broader set of risk reduction strategies and is intended to assist decision makers for local, regional and system-wide risk management of rail hazardous materials transportation. Copyright © 2013 Elsevier B.V. All rights reserved.

  2. A 3D Laser Profiling System for Rail Surface Defect Detection

    PubMed Central

    Li, Qingquan; Mao, Qingzhou; Zou, Qin

    2017-01-01

    Rail surface defects such as the abrasion, scratch and peeling often cause damages to the train wheels and rail bearings. An efficient and accurate detection of rail defects is of vital importance for the safety of railway transportation. In the past few decades, automatic rail defect detection has been studied; however, most developed methods use optic-imaging techniques to collect the rail surface data and are still suffering from a high false recognition rate. In this paper, a novel 3D laser profiling system (3D-LPS) is proposed, which integrates a laser scanner, odometer, inertial measurement unit (IMU) and global position system (GPS) to capture the rail surface profile data. For automatic defect detection, first, the deviation between the measured profile and a standard rail model profile is computed for each laser-imaging profile, and the points with large deviations are marked as candidate defect points. Specifically, an adaptive iterative closest point (AICP) algorithm is proposed to register the point sets of the measured profile with the standard rail model profile, and the registration precision is improved to the sub-millimeter level. Second, all of the measured profiles are combined together to form the rail surface through a high-precision positioning process with the IMU, odometer and GPS data. Third, the candidate defect points are merged into candidate defect regions using the K-means clustering. At last, the candidate defect regions are classified by a decision tree classifier. Experimental results demonstrate the effectiveness of the proposed laser-profiling system in rail surface defect detection and classification. PMID:28777323

  3. High pressure common rail injection system modeling and control.

    PubMed

    Wang, H P; Zheng, D; Tian, Y

    2016-07-01

    In this paper modeling and common-rail pressure control of high pressure common rail injection system (HPCRIS) is presented. The proposed mathematical model of high pressure common rail injection system which contains three sub-systems: high pressure pump sub-model, common rail sub-model and injector sub-model is a relative complicated nonlinear system. The mathematical model is validated by the software Matlab and a virtual detailed simulation environment. For the considered HPCRIS, an effective model free controller which is called Extended State Observer - based intelligent Proportional Integral (ESO-based iPI) controller is designed. And this proposed method is composed mainly of the referred ESO observer, and a time delay estimation based iPI controller. Finally, to demonstrate the performances of the proposed controller, the proposed ESO-based iPI controller is compared with a conventional PID controller and ADRC. Copyright © 2016 ISA. Published by Elsevier Ltd. All rights reserved.

  4. Local control of noise and vibration with KELTRACK™ friction modifier and Protector ® trackside application: an integrated solution

    NASA Astrophysics Data System (ADS)

    Eadie, D. T.; Santoro, M.; Powell, W.

    2003-10-01

    Wheel squeal is a source of continuing concern for many railroads and transits, as well as for their neighbours. The underlying mechanism for squeal noise has been well understood in the literature for some time. However an integrated abatement method addressing the underlying cause of the problem has not previously been reported. This paper describes practical experience using a water-based liquid Friction Modifier (KELTRACK™) applied using a top of rail trackside applicator (Portec Protector ®). The Friction Modifier and delivery equipment have been co-developed to provide an optimized product/delivery system that gives significant reduction of wheel squeal in curves. Wheels experiencing lateral creep in curves are subject to roll-slip oscillations as a result of the frictional characteristics of the interface layer between the wheel and rail. These roll-slip oscillations are amplified in the wheel web leading to the familiar squeal. Providing a thin film of material between the wheel and rail with positive friction characteristics can both in theory and practice greatly reduce the magnitude of these oscillations. The controlled intermediate friction characteristics of KELTRACK™ allow the material to be delivered to the top of both rails without compromising traction or braking. The positive friction aspects of the friction modifier are illustrated by published laboratory studies. Delivery of KELTRACK™ to the contact patch is achieved with a proprietary top of rail electric trackside applicator, the Portec Protector ®. The material is delivered to the top of both rails for optimum friction control. The integrated product/equipment technology is now successfully controlling noise at more than twenty transit sites. Typical sound level reduction is 10-15 dB, in some cases as high as 20 dB, depending on the initial sound level. Two case studies are presented illustrating the technology.

  5. 77 FR 50323 - Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... clearance envelope but, by design, may be less than four feet from the field side of the rail. The Working... these niches that are outside the clearance envelope may, by design, be slightly less than four...

  6. Crashworthiness analysis of the January 26, 2005 Glendale, California rail collision

    DOT National Transportation Integrated Search

    2011-03-16

    In Glendale, California on January 26, 2005, impact with : an SUV on the track caused a southbound commuter train to : derail, impact a standing freight train, buckle laterally outward, : and rake the side of a northbound commuter train. Significant ...

  7. Carbody elastic vibrations of high-speed vehicles caused by bogie hunting instability

    NASA Astrophysics Data System (ADS)

    Wei, Lai; Zeng, Jing; Chi, Maoru; Wang, Jianbin

    2017-09-01

    In particular locations of the high-speed track, the worn wheel profile matched up with the worn rail profile will lead to an extremely high-conicity wheel-rail contact. Consequently, the bogie hunting instability arises, which further results in the so-called carbody shaking phenomenon. In this paper, the carbody elastic vibrations of a high-speed vehicle in service are firstly introduced. Modal tests are conducted to identity the elastic modes of the carbody. The ride comfort and running safety indices for the tested vehicle are evaluated. The rigid-flexible coupling dynamic model for the high-speed passenger car is then developed by using the FE and MBS coupling approach. The rail profiles in those particular locations are measured and further integrated into the simulation model to reproduce the bogie hunting and carbody elastic vibrations. The effects of wheel and rail wear on the vehicle system response, e.g. wheelset bifurcation graph and carbody vibrations, are studied. Two improvement measures, including the wheel profile modification and rail grinding, are proposed to provide possible solutions. It is found that the wheel-rail contact conicity can be lowered by decreasing wheel flange thickness or grinding rail corner, which is expected to improve the bogie hunting stability under worn rail and worn wheel conditions. The carbody elastic vibrations caused by bogie hunting instability can be further restrained.

  8. 75 FR 19364 - Wooden Bedroom Furniture From the People's Republic of China: Final Results of Expedited Sunset...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-14

    ..., cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the... memorandum ``Wooden Bedroom Furniture from the People's Republic of China: Scope Ruling on a White Toy Box...

  9. 76 FR 65684 - Wooden Bedroom Furniture From the People's Republic of China: Preliminary Results of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-24

    ..., cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the...: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional ranges used to identify the toy...

  10. 77 FR 21536 - Wooden Bedroom Furniture From the People's Republic of China: Final Rescission of Antidumping...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... wicker, cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the... Bedroom Furniture from the People's Republic of China: Scope Ruling on a White Toy Box,'' dated July 6...

  11. 76 FR 9747 - Wooden Bedroom Furniture From the People's Republic of China: Final Results of Antidumping Duty...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... of wicker, cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately... the People's Republic of China: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional...

  12. Rail Impact Testing. Test Operations Procedure (TOP)

    DTIC Science & Technology

    2008-09-15

    impact test. The rail impact test is used to verify structural integrity of the test item and the adequacy of the tie-down system and tie-down...strength of provisions, connection and supporting structural frame, paragraph 5.2.3 ** Superscript...parts, to include outriggers and booms) without advanced approval by SDDCTEA. Torque nuts on wire rope clips to their correct value. Torque cable

  13. Track dynamic behavior at rail welds at high speed

    NASA Astrophysics Data System (ADS)

    Xiao, Guangwen; Xiao, Xinbiao; Guo, Jun; Wen, Zefeng; Jin, Xuesong

    2010-06-01

    As a vehicle passing through a track with different weld irregularities, the dynamic performance of track components is investigated in detail by using a coupled vehicle-track model. In the model, the vehicle is modeled as a multi-body system with 35 degrees of freedom, and a Timoshenko beam is used to model the rails which are discretely supported by sleepers. In the track model, the sleepers are modeled as rigid bodies accounting for their vertical, lateral and rolling motions and assumed to move backward at a constant speed to simulate the vehicle running along the track at the same speed. In the study of the coupled vehicle and track dynamics, the Hertizian contact theory and the theory proposed by Shen-Hedrick-Elkins are, respectively, used to calculate normal and creep forces between the wheel and the rails. In the calculation of the normal forces, the coefficient of the normal contact stiffness is determined by transient contact condition of the wheel and rail surface. In the calculation of the creepages, the lateral, roll-over motions of the rail and the fact that the relative velocity between the wheel and rail in their common normal direction is equal to zero are simultaneously taken into account. The motion equations of the vehicle and track are solved by means of an explicit integration method, in which the rail weld irregularities are modeled as local track vertical deviations described by some ideal cosine functions. The effects of the train speed, the axle load, the wavelength and depth of the irregularities, and the weld center position in a sleeper span on the wheel-rail impact loading are analyzed. The numerical results obtained are greatly useful in the tolerance design of welded rail profile irregularity caused by hand-grinding after rail welding and track maintenances.

  14. Recognition of rail car retroreflective patterns for improving nighttime conspicuity

    DOT National Transportation Integrated Search

    2001-07-01

    Every year in the United States, accidents at highway-railroad grade crossings take place where the motorist hits the side of the train at night. In a portion of these nighttime accidents, the motorist fails to see the train in the grade crossing. On...

  15. 75 FR 50992 - Wooden Bedroom Furniture From the People's Republic of China: Final Results and Final Rescission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... wicker, cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the... the People's Republic of China: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional...

  16. 75 FR 44764 - Wooden Bedroom Furniture from the People's Republic of China: Final Results of Antidumping Duty...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-29

    ..., cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the...: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional ranges used to identify the toy...

  17. 76 FR 68138 - Wooden Bedroom Furniture From the People's Republic of China: Final Results of the 2010...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ..., cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the...: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional ranges used to identify the toy...

  18. 76 FR 49729 - Wooden Bedroom Furniture From the People's Republic of China: Final Results and Final Rescission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-11

    ... wicker, cane, osier, bamboo or rattan; (7) side rails for beds made of metal if sold separately from the...: Scope Ruling on a White Toy Box,'' dated July 6, 2009, the dimensional ranges used to identify the toy...

  19. 49 CFR 38.73 - Doorways.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    .... Vertical alignment may be accomplished by vehicle air suspension, automatic ramps or lifts, or any... SPECIFICATIONS FOR TRANSPORTATION VEHICLES Light Rail Vehicles and Systems § 38.73 Doorways. (a) Clear width—(1) All passenger doorways on vehicle sides shall have minimum clear openings of 32 inches when open. (2...

  20. 46 CFR 163.002-13 - Construction.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... sharp edges and projections of excessive length. A pilot hoist must not have nonfunctional sharp edges... vessel's side rails for support; and (3) Unobstructed passage between the ladder or lift platform of the... between the vessel's compressed air source and the pneumatic motor. (l) Hoist control lever. Each pilot...

  1. 46 CFR 163.002-13 - Construction.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... sharp edges and projections of excessive length. A pilot hoist must not have nonfunctional sharp edges... vessel's side rails for support; and (3) Unobstructed passage between the ladder or lift platform of the... between the vessel's compressed air source and the pneumatic motor. (l) Hoist control lever. Each pilot...

  2. 46 CFR 163.002-13 - Construction.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... sharp edges and projections of excessive length. A pilot hoist must not have nonfunctional sharp edges... vessel's side rails for support; and (3) Unobstructed passage between the ladder or lift platform of the... between the vessel's compressed air source and the pneumatic motor. (l) Hoist control lever. Each pilot...

  3. 3. BUNKER HILL LEAD SMELTER. VIEW IS FROM CIA TO ...

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

    3. BUNKER HILL LEAD SMELTER. VIEW IS FROM CIA TO THE SOUTHWEST. BUILDINGS NOTED IN ID-29-2 APPEAR, IN ADDITION TO DRY ORE PLANT AND BONNOT COAL PULVERIZING EQUIPMENT BUILDING ON THE RIGHT. - Bunker Hill Lead Smelter, Bradley Rail Siding, Kellogg, Shoshone County, ID

  4. A rational fraction polynomials model to study vertical dynamic wheel-rail interaction

    NASA Astrophysics Data System (ADS)

    Correa, N.; Vadillo, E. G.; Santamaria, J.; Gómez, J.

    2012-04-01

    This paper presents a model designed to study vertical interactions between wheel and rail when the wheel moves over a rail welding. The model focuses on the spatial domain, and is drawn up in a simple fashion from track receptances. The paper obtains the receptances from a full track model in the frequency domain already developed by the authors, which includes deformation of the rail section and propagation of bending, elongation and torsional waves along an infinite track. Transformation between domains was secured by applying a modified rational fraction polynomials method. This obtains a track model with very few degrees of freedom, and thus with minimum time consumption for integration, with a good match to the original model over a sufficiently broad range of frequencies. Wheel-rail interaction is modelled on a non-linear Hertzian spring, and consideration is given to parametric excitation caused by the wheel moving over a sleeper, since this is a moving wheel model and not a moving irregularity model. The model is used to study the dynamic loads and displacements emerging at the wheel-rail contact passing over a welding defect at different speeds.

  5. 29 CFR 1926.1053 - Ladders.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ascend or descend without continually having to hold, push or pull any part of the device, leaving both... the carrier. When the system is exposed to wind, cable guides for flexible carriers shall be installed... mountings and cable guides shall not reduce the design strength of the ladder. (24) The side rails of...

  6. 29 CFR 1926.1053 - Ladders.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... ascend or descend without continually having to hold, push or pull any part of the device, leaving both... the carrier. When the system is exposed to wind, cable guides for flexible carriers shall be installed... mountings and cable guides shall not reduce the design strength of the ladder. (24) The side rails of...

  7. 77 FR 52220 - Safety Standard for Play Yards

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... product, including mobiles, toy bars, canopies, bassinets, and changing tables. C. Incident Data The... between different comments. The number assigned to each comment is purely for organizational purposes and... most play yards form a dangerous V-shape if the side rail latch mechanisms are not locked properly. The...

  8. 29 CFR 1926.605 - Marine operations and equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... chapter. The term “longshoring operations” means the loading, unloading, moving, or handling of... surfaces of barges. (1) Employees shall not be permitted to walk along the sides of covered lighters or... a safe passage. (4) Employees shall not be permitted to walk over deckloads from rail to coaming...

  9. 49 CFR 38.53 - Doorways.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... accomplished by vehicle air suspension or other suitable means of meeting the requirement. (2) Exception. New... SPECIFICATIONS FOR TRANSPORTATION VEHICLES Rapid Rail Vehicles and Systems § 38.53 Doorways. (a) Clear width. (1) Passenger doorways on vehicle sides shall have clear openings at least 32 inches wide when open. (2) If...

  10. A precise integration method for solving coupled vehicle-track dynamics with nonlinear wheel-rail contact

    NASA Astrophysics Data System (ADS)

    Zhang, J.; Gao, Q.; Tan, S. J.; Zhong, W. X.

    2012-10-01

    A new method is proposed as a solution for the large-scale coupled vehicle-track dynamic model with nonlinear wheel-rail contact. The vehicle is simplified as a multi-rigid-body model, and the track is treated as a three-layer beam model. In the track model, the rail is assumed to be an Euler-Bernoulli beam supported by discrete sleepers. The vehicle model and the track model are coupled using Hertzian nonlinear contact theory, and the contact forces of the vehicle subsystem and the track subsystem are approximated by the Lagrange interpolation polynomial. The response of the large-scale coupled vehicle-track model is calculated using the precise integration method. A more efficient algorithm based on the periodic property of the track is applied to calculate the exponential matrix and certain matrices related to the solution of the track subsystem. Numerical examples demonstrate the computational accuracy and efficiency of the proposed method.

  11. Emission Projections for Long-Haul Freight Trucks and Rail in the United States through 2050.

    PubMed

    Liu, Liang; Hwang, Taesung; Lee, Sungwon; Ouyang, Yanfeng; Lee, Bumsoo; Smith, Steven J; Yan, Fang; Daenzer, Kathryn; Bond, Tami C

    2015-10-06

    This work develops an integrated model approach for estimating emissions from long-haul freight truck and rail transport in the United States between 2010 and 2050. We connect models of macroeconomic activity, freight demand by commodity, transportation networks, and emission technology to represent different pathways of future freight emissions. Emissions of particulate matter (PM), carbon monoxide (CO), nitrogen oxides (NOx), and total hydrocarbon (THC) decrease by 60%-70% from 2010 to 2030, as older vehicles built to less-stringent emission standards retire. Climate policy, in the form of carbon tax that increases apparent fuel prices, causes a shift from truck to rail, resulting in a 30% reduction in fuel consumption and a 10%-28% reduction in pollutant emissions by 2050, if rail capacity is sufficient. Eliminating high-emitting conditions in the truck fleet affects air pollutants by 20% to 65%; although these estimates are highly uncertain, they indicate the importance of durability in vehicle engines and emission control systems. Future infrastructure investment will be required both to meet transport demand and to enable actions that reduce emissions of air and climate pollutants. By driving the integrated model framework with two macroeconomic scenarios, we show that the effect of carbon tax on air pollution is robust regardless of growth levels.

  12. Synchrotron X-ray measurement of residual strain within the nose of a worn manganese steel railway crossing

    NASA Astrophysics Data System (ADS)

    Dhar, S.; Zhang, Y.; Xu, R.; Danielsen, HK; Jensen, D. Juul

    2017-07-01

    Switches and crossings are an integral part of any railway network. Plastic deformation associated with wear and rolling contact fatigue due to repeated passage of trains cause severe damage leading to the formation of surface and sub-surface cracks which ultimately may result in rail failure. Knowledge of the internal stress distribution adds to the understanding of crack propagation and may thus help to prevent catastrophic rail failures. In this work, the residual strains inside the bulk of a damaged nose of a manganese railway crossing that was in service for five years has been investigated by using differential aperture synchrotron X-ray diffraction. The main purpose of this paper is to describe how this method allows non-destructive measurement of residual strains in selected local volumes in the bulk of the rail. Measurements were conducted on the transverse surface at a position about 6.5 mm from the rail running surface of a crossing nose. The results revealed the presence of significant compressive residual strains along the running direction of the rail.

  13. Integrated network capacity analysis for freight railroads.

    DOT National Transportation Integrated Search

    2016-02-23

    Rail network capacity analysis should consider all network infrastructures in an integrated way, with the challenges of the nonlinear relationships at each network element, a link or a node, and complexity of the interaction between various network e...

  14. Software and Critical Technology Protection Against Side-Channel Analysis Through Dynamic Hardware Obfuscation

    DTIC Science & Technology

    2011-03-01

    resampling a second time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 70 Plot of RSA bitgroup exponentiation with DAILMOM after a...14 DVFS Dynamic Voltage and Frequency Switching . . . . . . . . . . . . . . . . . . . 14 MDPL Masked Dual-Rail...algorithms to prevent whole-sale discovery of PINs and other simple methods to prevent employee tampering [5]. In time , cryptographic systems have

  15. Meteorological tower design for severe weather and remote locations

    Treesearch

    Kelly Elder; Ilkoo Angutikjuak; Jessica Baker; Matt Belford; Tom Bennett; Karl Birkeland; Daniel Bowker; Doug Chabot; April Cheuvront; Mark Dixon; Dylan Elder; Lee Elder; Shari Gearheard; Greg Giedt; Kim Grant; Sam Green; Ethan Greene; Nick Houfek; Caleb Huntington; Henry Huntington; Thomas Huntington; Daniel Janigian; Crane Johnson; Glen Liston; Rob Maris; Andrea Marsh; Hans-Peter Marshall; Aidan Meiners; Alex Meiners; Theo Meiners; Limakee Palluq; Josh Pope; Esa Qillaq; Joelli Sanguya; Sam Sehnert; Ron Simenhois; Banning Starr; Roger Tyler

    2012-01-01

    We have developed a robust meteorological tower for deployment in locations with extreme conditions and for applications that require relatively maintenance-free structures. The basic design consists of a triangular base with two horizontal rails on each side, and uprights at the triangle vertices for various instrument configurations. The fabrication materials include...

  16. 76 FR 58167 - Safety Standard for Play Yards

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-20

    ... standard and, in some cases, provide test results publicly. C. Incident Data The CPSC's Directorate for... Requirements''; and the Canadian standard, C.R.C., c. 932, ``Playpen Regulations.'' We considered the... the side rails. Some play yards collapsed into a V-shape. If a child's neck is caught in the V-shape...

  17. 247. Axial Parkway alignment along ridge top. Note the open ...

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

    247. Axial Parkway alignment along ridge top. Note the open vistas to either side of the roadway. These are maintained through vegetation management. The wood guide rail is a primary safety feature. View is to the northeast. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

  18. Durability of wood-plastic composite lumber

    Treesearch

    Rebecca E. Ibach

    2010-01-01

    Wood-plastic composite (WPC) lumber has been marketed as a low-maintenance, high-durability product. Retail sales in the United States were slightly less than $1 billion in 2008. Applications include docking, railing, windows, doors, fencing, siding, moldings, landscape timbers, car interior parts, and furniture. The majority of these products are used outdoors and...

  19. 24 CFR 3285.801 - Exterior close-up.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... close-up strips/trim must be fastened securely and sealed with exterior sealant (see figure A to this... rear end walls. 2. The manufacturer must install doors/windows trimmed with J-rail or the equivalent... transport. Siding, starter trim, and vents may be shipped loose in the home for installation on set-up. 3...

  20. 1. BUNKER HILL LEAD SMELTER. VIEW IS FROM CENTRAL IMPOUNDMENT ...

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

    1. BUNKER HILL LEAD SMELTER. VIEW IS FROM CENTRAL IMPOUNDMENT AREA LOOKING SOUTH. PLANT DRY IS IN CENTER FOREGROUND, SLAG FUMING PLANT IS IN RIGHT FOREGROUND, AND BAG HOUSE IS IN RIGHT BACKGROUND. VARIOUS PLANT STACKS ARE ALSO VISIBLE. - Bunker Hill Lead Smelter, Bradley Rail Siding, Kellogg, Shoshone County, ID

  1. Design and construction of coke battery 1A at Radlin coke plant, Poland

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

    A.M. Kravchenko; D.P. Yarmoshik; V.B. Kamenyuka

    In the design and construction of coke battery 1A at Radlin coke plant (Poland), coking of rammed coke with a stationary system was employed for the first time. The coke batteries are grouped in blocks. Safety railings are provided on the coke and machine sides of the maintenance areas.

  2. 49 CFR 222.9 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... warning device (see 49 CFR 229.129) mounted on a locomotive or control cab car. The terms “locomotive horn”, “train whistle”, “locomotive whistle”, and “train horn” are used interchangeably in the railroad industry... highway vehicle struck the side of the train beyond the fourth locomotive unit or rail car. With respect...

  3. 49 CFR 222.9 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... warning device (see 49 CFR 229.129) mounted on a locomotive or control cab car. The terms “locomotive horn”, “train whistle”, “locomotive whistle”, and “train horn” are used interchangeably in the railroad industry... highway vehicle struck the side of the train beyond the fourth locomotive unit or rail car. With respect...

  4. Environmental Monitoring of Transportation of 30MM Ammunition in MILVANS from Savanna Army Depot Activity (SVDA) to Crane Army Ammunition Activity (CAAA) via Highway and Rail.

    DTIC Science & Technology

    1997-07-01

    from Savanna Army Depot Activity (SVDA) to Crane Army Ammunition Activity (CAAA). The first instrumented MIL VAN was transported on a flatbed ...SLACK CAN BE ELIMINATED FROM A LOAD BAY BY LAMINATING ADDITIONAL BEARING PIECES OF APPROPRIATE THICKNESS TO THE BEARING PIECES OF ONE OR MORE SIDE...FILL GATES ON ONE OR BOTH SIDES OF THE CONTAINER. FIVE (5) NAILS OF APPROPRIATE SIZE WILL BE USED TO LAMINATE EACH ADDED BEARING PIECE. F

  5. Drive control and position measurement of RailCab vehicles driven by linear motors

    NASA Astrophysics Data System (ADS)

    Pottharst, Andreas; Henke, Christian; Schneider, Tobias; Böcker, Joachim; Grotstollen, Horst

    2006-11-01

    The novel railway system RailCab makes use of autonomous vehicles which are driven by an AC linear motor. Depending on the track-side motor part, long-stator or short-stator operations are possible. The paper deals with the operation of the doubly-fed induction motor which is used for motion control and for transferring the energy required onboard the vehicle. This type of linear motor synchronization of the traveling fields generated by the stationary primary and moving secondary windings is an important and demanding task because the instantaneous positions of the vehicle or the primary traveling wave must be determined with high accuracy. The paper shows how this task is solved at the moment and what improvements are under development.

  6. Numerical simulation of vehicle crashworthiness and occupant protection

    NASA Astrophysics Data System (ADS)

    Saha, Nripen K.

    1993-08-01

    Numerical simulation of vehicle crashworthiness and occupant protection are addressed. The vehicle crashworthiness design objectives are to design the vehicle structure for optimum impact energy absorption, and to design the restraint system (seatbelts, airbags, bolsters, etc.) for optimum occupant protection. The following approaches are taken; a major part of the impact energy is to be absorbed by the vehicle structure; the restraint components will provide protection against the remaining crash energy; certain vehicle components are designed to deform under specific types and speeds of impact in a desired mode for sound energy management; structural components such as front side rails, rear rails, door structure and pillars undergo large amounts of deformation; and with properly designed geometry and material these components assist in mitigating the effects of impact.

  7. Numerical simulation of vehicle crashworthiness and occupant protection

    NASA Technical Reports Server (NTRS)

    Saha, Nripen K.

    1993-01-01

    Numerical simulation of vehicle crashworthiness and occupant protection are addressed. The vehicle crashworthiness design objectives are to design the vehicle structure for optimum impact energy absorption, and to design the restraint system (seatbelts, airbags, bolsters, etc.) for optimum occupant protection. The following approaches are taken; a major part of the impact energy is to be absorbed by the vehicle structure; the restraint components will provide protection against the remaining crash energy; certain vehicle components are designed to deform under specific types and speeds of impact in a desired mode for sound energy management; structural components such as front side rails, rear rails, door structure and pillars undergo large amounts of deformation; and with properly designed geometry and material these components assist in mitigating the effects of impact.

  8. Integrated corridor management transit vehicle real-time data demonstration: Dallas case study

    DOT National Transportation Integrated Search

    2014-12-01

    As part of the U.S. Department of Transportations Integrated Corridor Management (ICM) Initiative, Dallas Area Rapid Transit (DART) purchased new automatic passenger counter (APC) technology for its Red and Orange line light rail vehicles to provi...

  9. Optofluidic encapsulation and manipulation of silicon microchips using image processing based optofluidic maskless lithography and railed microfluidics.

    PubMed

    Chung, Su Eun; Lee, Seung Ah; Kim, Jiyun; Kwon, Sunghoon

    2009-10-07

    We demonstrate optofluidic encapsulation of silicon microchips using image processing based optofluidic maskless lithography and manipulation using railed microfluidics. Optofluidic maskless lithography is a dynamic photopolymerization technique of free-floating microstructures within a fluidic channel using spatial light modulator. Using optofluidic maskless lithography via computer-vision aided image processing, polymer encapsulants are fabricated for chip protection and guiding-fins for efficient chip conveying within a fluidic channel. Encapsulated silicon chips with guiding-fins are assembled using railed microfluidics, which is an efficient guiding and heterogeneous self-assembly system of microcomponents. With our technology, externally fabricated silicon microchips are encapsulated, fluidically guided and self-assembled potentially enabling low cost fluidic manipulation and assembly of integrated circuits.

  10. An Intrusion Detection System for the Protection of Railway Assets Using Fiber Bragg Grating Sensors

    PubMed Central

    Catalano, Angelo; Bruno, Francesco Antonio; Pisco, Marco; Cutolo, Antonello; Cusano, Andrea

    2014-01-01

    We demonstrate the ability of Fiber Bragg Gratings (FBGs) sensors to protect large areas from unauthorized activities in railway scenarios such as stations or tunnels. We report on the technological strategy adopted to protect a specific depot, representative of a common scenario for security applications in the railway environment. One of the concerns in the protection of a railway area centers on the presence of rail-tracks, which cannot be obstructed with physical barriers. We propose an integrated optical fiber system composed of FBG strain sensors that can detect human intrusion for protection of the perimeter combined with FBG accelerometer sensors for protection of rail-track access. Several trials were carried out in indoor and outdoor environments. The results demonstrate that FBG strain sensors bonded under a ribbed rubber mat enable the detection of intruder break-in via the pressure induced on the mat, whereas the FBG accelerometers installed under the rails enable the detection of intruders walking close to the railroad tracks via the acoustic surface waves generated by footsteps. Based on a single enabling technology, this integrated system represents a valuable intrusion detection system for railway security and could be integrated with other sensing functionalities in the railway field using fiber optic technology. PMID:25268920

  11. 145. ARAIII Control building (ARA607) Sections. Shows highbay section of ...

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

    145. ARA-III Control building (ARA-607) Sections. Shows high-bay section of building over crane rail and beam. Indicates materials of exterior siding. Aerojet-general 880-area/GCRE-607-A-11. Date: February 1958. Ineel index code no. 063-0607-00-013-102556. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

  12. 5. INTERIOR VIEW, LOOKING WEST, ALONG ASSEMBLY LINE WITH WELDING ...

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

    5. INTERIOR VIEW, LOOKING WEST, ALONG ASSEMBLY LINE WITH WELDING OF THE HOPPER SIDE AND GATE FRAMES, THE FIRST ASSEMBLY OF THE SUBASSEMBLIES. STEEL FRAME (TOP OF PHOTOGRAPH) CALLED THE 'HIGHLINE,' HOLDS CRANES AND EQUIPMENT NEEDED FOR RAIL CAR ASSEMBLY. - Pullman Standard Company Plant, Fabrication Assembly Shop, 401 North Twenty-fourth Street, Bessemer, Jefferson County, AL

  13. 22. A sideview of the rear face of a typical ...

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

    22. A side-view of the rear face of a typical pile, in this case the F Reactor in February 1945. The low railing and walkway are part of the discharge elevator. Notice the vertical row of numbers on the right that identified the rows of process tubes. D-8326 - B Reactor, Richland, Benton County, WA

  14. Influence of uneven rail irregularities on the dynamic response of the railway track using a three-dimensional model of the vehicle-track system

    NASA Astrophysics Data System (ADS)

    Naeimi, Meysam; Zakeri, Jabbar Ali; Esmaeili, Morteza; Shadfar, Morad

    2015-01-01

    A mathematical model of the vehicle-track interaction is developed to investigate the coupled behaviour of vehicle-track system, in the presence of uneven irregularities at left/right rails. The railway vehicle is simplified as a 3D multi-rigid-body model, and the track is treated as the two parallel beams on a layered discrete support system. Besides the car-body, the bogies and the wheel sets, the sleepers are assumed to have roll degree of freedom, in order to simulate the in-plane rotation of the components. The wheel-rail interface is treated using a nonlinear Hertzian contact model, coupling the mathematical equations of the vehicle-track systems. The dynamic interaction of the entire system is numerically studied in time domain, employing Newmark's integration method. The track irregularity spectra of both the left/right rails are taken into account, as the inputs of dynamic excitations. The dynamic responses of the track system induced by such irregularities are obtained, particularly in terms of the vertical (bounce) and roll displacements. The numerical model of the present research is validated using several benchmark models reported in the literature, for both the smooth and unsmooth track conditions. Four sample profiles of the measured rail irregularities are considered as the case studies of excitation sources, examining their influences on the dynamic behaviour of the coupled system. The results of numerical simulations demonstrate that the motion of track system is significantly influenced by the presence of uneven irregularities in left/right rails. Dynamic response of the sleepers in the roll direction becomes more sensitive to the rail irregularities, as the unevenness severity of the parallel profiles (quantitative difference between left and right rail spectra) is increased. The severe geometric deformation of the track in the bounce-pitch-roll directions is mainly related to such profile unevenness (cross-level) in left/right rails.

  15. Operating Experience and Lessons Learned in the Use of Soft-Sided Packaging for Transportation and Disposal of Low Activity Radioactive Waste

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

    Kapoor, A.; Gordon, S.; Goldston, W.

    2013-07-08

    This paper describes the operating experience and lessons learned at U.S. Department of Energy (DOE) sites as a result of an evaluation of potential trailer contamination and soft-sided packaging integrity issues related to the disposal of low-level and mixed low-level (LLW/MLLW) radioactive waste shipments. Nearly 4.3 million cubic meters of LLW/MLLW will have been generated and disposed of during fiscal year (FY) 2010 to FY 2015—either at commercial disposal sites or disposal sites owned by DOE. The LLW/MLLW is packaged in several different types of regulatory compliant packaging and transported via highway or rail to disposal sites safely and efficientlymore » in accordance with federal, state, and local regulations and DOE orders. In 1999, DOE supported the development of LLW containers that are more volumetrically efficient, more cost effective, and easier to use as compared to metal or wooden containers that existed at that time. The DOE Idaho National Engineering and Environmental Laboratory (INEEL), working in conjunction with the plastic industry, tested several types of soft-sided waste packaging systems that meet U.S. Department of Transportation requirements for transport of low specific activity and surface contaminated objects. Since then, soft-sided packaging of various capacities have been used successfully by the decontamination and decommissioning (D&D) projects to package, transport, and dispose D&D wastes throughout the DOE complex. The joint team of experts assembled by the Energy Facility Contractors Group from DOE waste generating sites, DOE and commercial waste disposal facilities, and soft-sided packaging suppliers conducted the review of soft-sided packaging operations and transportation of these packages to the disposal sites. As a result of this evaluation, the team developed several recommendations and best practices to prevent or minimize the recurrences of equipment contamination issues and proper use of soft-sided packaging for transport and disposal of waste.« less

  16. A System Dynamics Model for Integrated Decision Making: The Durham-Orange Light Rail Project

    EPA Science Inventory

    EPA’s Sustainable and Healthy Communities Research Program (SHC) is conducting transdisciplinary research to inform and empower decision-makers. EPA tools and approaches are being developed to enable communities to effectively weigh and integrate human health, socioeconomic, envi...

  17. Traction sheave elevator, hoisting unit and machine space

    DOEpatents

    Hakala, Harri; Mustalahti, Jorma; Aulanko, Esko

    2000-01-01

    Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.

  18. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... DTB Firkin FIR Flo-Bin FLO Frame FRM Flask FSK Forward Reel FWR Garment on Hanger GOH Heads of Beef... Private Vehicle POV Pipe Rack PRK Quarters of Beef QTR Rail (semiconductor) RAL Rack RCK Reel REL Roll ROL Reverse Reel RVR Sack SAK Shook SHK Sides of Beef SID Skid SKD Skid, Elev, Lift Trk SKE Sleeve SLV Spin...

  19. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... DTB Firkin FIR Flo-Bin FLO Frame FRM Flask FSK Forward Reel FWR Garment on Hanger GOH Heads of Beef... Private Vehicle POV Pipe Rack PRK Quarters of Beef QTR Rail (semiconductor) RAL Rack RCK Reel REL Roll ROL Reverse Reel RVR Sack SAK Shook SHK Sides of Beef SID Skid SKD Skid, Elev, Lift Trk SKE Sleeve SLV Spin...

  20. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... DTB Firkin FIR Flo-Bin FLO Frame FRM Flask FSK Forward Reel FWR Garment on Hanger GOH Heads of Beef... Private Vehicle POV Pipe Rack PRK Quarters of Beef QTR Rail (semiconductor) RAL Rack RCK Reel REL Roll ROL Reverse Reel RVR Sack SAK Shook SHK Sides of Beef SID Skid SKD Skid, Elev, Lift Trk SKE Sleeve SLV Spin...

  1. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... DTB Firkin FIR Flo-Bin FLO Frame FRM Flask FSK Forward Reel FWR Garment on Hanger GOH Heads of Beef... Private Vehicle POV Pipe Rack PRK Quarters of Beef QTR Rail (semiconductor) RAL Rack RCK Reel REL Roll ROL Reverse Reel RVR Sack SAK Shook SHK Sides of Beef SID Skid SKD Skid, Elev, Lift Trk SKE Sleeve SLV Spin...

  2. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... DTB Firkin FIR Flo-Bin FLO Frame FRM Flask FSK Forward Reel FWR Garment on Hanger GOH Heads of Beef... Private Vehicle POV Pipe Rack PRK Quarters of Beef QTR Rail (semiconductor) RAL Rack RCK Reel REL Roll ROL Reverse Reel RVR Sack SAK Shook SHK Sides of Beef SID Skid SKD Skid, Elev, Lift Trk SKE Sleeve SLV Spin...

  3. 49 CFR 173.4 - Small quantities for highway and rail.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... solid materials; (iii) One (1) g (0.04 ounce) for authorized materials meeting the definition of a... drops made from a height of 1.8 m (5.9 feet) directly onto a solid unyielding surface without breakage... package: (A) One drop flat on bottom; (B) One drop flat on top; (C) One drop flat on the long side; (D...

  4. 70. DETAIL OF TRACTION CABLE ENGAGEMENT DEVICE. SMALL, KNOBBED LEVER ...

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

    70. DETAIL OF TRACTION CABLE ENGAGEMENT DEVICE. SMALL, KNOBBED LEVER ON BUCKET HANGER WAS PULLED DOWN BY A CAMEL (FIXED CAM RAIL AT CENTER) AS BUCKET ROLLED PAST IT, CAUSING A CLAMP TO CLOSE AGAINST TRACTION CABLE. A SIMILAR CAMEL (NO LONGER EXTANT) DISENGAGED CLAMP ON RECEIVING SIDE. - Shenandoah-Dives Mill, 135 County Road 2, Silverton, San Juan County, CO

  5. Overall contextual view of Building Nos. 92, 391, and 392, ...

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

    Overall contextual view of Building Nos. 92, 391, and 392, taken from pier side, crane rails along bravo piers in foreground, palm tree and street light at right center, view facing east-northeast - U.S. Naval Base, Pearl Harbor, Marine Railway No. 1 Accessories House & Apprentice Welding School, Additions, Intersection of Avenue B & Sixth Street, Pearl City, Honolulu County, HI

  6. 2. BUNKER HILL LEAD SMELTER. VIEW IS FROM CIA TO ...

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

    2. BUNKER HILL LEAD SMELTER. VIEW IS FROM CIA TO THE SOUTH. IN FOREGROUND, PLANT DRY, SLAG FUMING PLANT, BLAST FURNACE, SMELTER OFFICE, LEAD AND SILVER REFINERIES ARE VISIBLE, L. TO R. HIGH VELOCITY FLUE LEADS FROM LOWER PLANT TO BAG HOUSE AND STACKS AT TOP OF SMELTING FACILITY. - Bunker Hill Lead Smelter, Bradley Rail Siding, Kellogg, Shoshone County, ID

  7. A System Dynamics Model for Integrated Decision Making ...

    EPA Pesticide Factsheets

    EPA’s Sustainable and Healthy Communities Research Program (SHC) is conducting transdisciplinary research to inform and empower decision-makers. EPA tools and approaches are being developed to enable communities to effectively weigh and integrate human health, socioeconomic, environmental, and ecological factors into their decisions to promote community sustainability. To help achieve this goal, EPA researchers have developed systems approaches to account for the linkages among resources, assets, and outcomes managed by a community. System dynamics (SD) is a member of the family of systems approaches and provides a framework for dynamic modeling that can assist with assessing and understanding complex issues across multiple dimensions. To test the utility of such tools when applied to a real-world situation, the EPA has developed a prototype SD model for community sustainability using the proposed Durham-Orange Light Rail Project (D-O LRP) as a case study.The EPA D-O LRP SD modeling team chose the proposed D-O LRP to demonstrate that an integrated modeling approach could represent the multitude of related cross-sectoral decisions that would be made and the cascading impacts that could result from a light rail transit system connecting Durham and Chapel Hill, NC. In keeping with the SHC vision described above, the proposal for the light rail is a starting point solution for the more intractable problems of population growth, unsustainable land use, environmenta

  8. Infrared and visible images registration with adaptable local-global feature integration for rail inspection

    NASA Astrophysics Data System (ADS)

    Tang, Chaoqing; Tian, Gui Yun; Chen, Xiaotian; Wu, Jianbo; Li, Kongjing; Meng, Hongying

    2017-12-01

    Active thermography provides infrared images that contain sub-surface defect information, while visible images only reveal surface information. Mapping infrared information to visible images offers more comprehensive visualization for decision-making in rail inspection. However, the common information for registration is limited due to different modalities in both local and global level. For example, rail track which has low temperature contrast reveals rich details in visible images, but turns blurry in the infrared counterparts. This paper proposes a registration algorithm called Edge-Guided Speeded-Up-Robust-Features (EG-SURF) to address this issue. Rather than sequentially integrating local and global information in matching stage which suffered from buckets effect, this algorithm adaptively integrates local and global information into a descriptor to gather more common information before matching. This adaptability consists of two facets, an adaptable weighting factor between local and global information, and an adaptable main direction accuracy. The local information is extracted using SURF while the global information is represented by shape context from edges. Meanwhile, in shape context generation process, edges are weighted according to local scale and decomposed into bins using a vector decomposition manner to provide more accurate descriptor. The proposed algorithm is qualitatively and quantitatively validated using eddy current pulsed thermography scene in the experiments. In comparison with other algorithms, better performance has been achieved.

  9. On the non-proportionality between wheel/rail contact forces and speed during wheelset passage over specific welds

    NASA Astrophysics Data System (ADS)

    Correa, Nekane; Vadillo, Ernesto G.; Santamaria, Javier; Blanco-Lorenzo, Julio

    2018-01-01

    This study investigates the influence on the wheel-rail contact forces of the running speed and the shape and position of weld defects along the track. For this purpose, a vertical dynamic model in the space domain is used. The model is obtained from the transformation between the domains of frequency and space using a Rational Fraction Polynomials (RFP) method, which is modified with multiobjective genetic algorithms in order to improve the fitting of track receptance and to assist integration during simulations. This produces a precise model with short calculation times, which is essential to this study. The wheel-rail contact is modelled using a non-linear Hertz spring. The contact forces are studied for several types of characteristic welds. The way in which forces vary as a function of weld position and running speed is studied for each type of weld. This paper studies some of the factors that affect the maximum forces when the vehicle moves over a rail weld, such as weld geometry, parametric excitation and contact stiffness. It is found that the maximum force in the wheel-rail contact when the vehicle moves over a weld is not always proportional to the running speed. The paper explains why it is not proportional in specific welds.

  10. Development of the electromagnetic technology for broken rail detection from a mobil platform

    NASA Astrophysics Data System (ADS)

    Plotnikov, Yuri; Raghunathan, Arun; Kumar, Ajith; Noffsinger, Joseph; Fries, Jeffrey; Ehret, Steven; Frangieh, Tannous; Palanganda, Samhitha

    2016-02-01

    Timely detection of breaks in running rails remains a topic of significant importance for the railroad industry. GE has been investigating new ideas of the Rail Integrity Monitoring or RIM technology that can be implemented on a wide range of the rolling stock platforms including locomotives, passenger and freight cars. The focus of the project is to establish a simple, non-contact, and inexpensive means of nondestructive inspection by fusion of known solutions with new technology development that can result in detection with high reliability. A scaled down model of a typical locomotive-track system has been developed at GE Global research for detailed study of the detection process. In addition, a finite element model has been established and used to understand distribution of the magnetic field and currents in such a system. Both models have been using the rails and wheel-axles geometry to establish a realistic model that would provide the electric current and magnetic field distribution close to the real world phenomenon. Initial magnetic field maps were obtained by scanning a 1:15 model constructed of steel bars using a 3D scanner and an inductive coil. Sensitivity to a broken rail located between two locomotive axles simulated by an opening in this metallic frame was demonstrated. Further investigation and optimization was conducted on a larger, 1:3 scale, physical model and by running mathematical simulations. Special attention was paid to consistency between the finite element and physical model results. The obtained results allowed establishment of a working frequency range, inductive current injection into the rail-wheel-axle loop and measuring the electromagnetic response to a broken rail. The verification and full scale system prototype tests are following the laboratory experiments and mathematical simulations.

  11. Modeling and Simulating Passenger Behavior for a Station Closure in a Rail Transit Network

    PubMed Central

    Yin, Haodong; Han, Baoming; Li, Dewei; Wu, Jianjun; Sun, Huijun

    2016-01-01

    A station closure is an abnormal operational situation in which the entrances or exits of a rail transit station have to be closed for some time due to an unexpected incident. A novel approach is developed to estimate the impacts of the alternative station closure scenarios on both passenger behavioral choices at the individual level and passenger demand at the disaggregate level in a rail transit network. Therefore, the contributions of this study are two-fold: (1) A basic passenger behavior optimization model is mathematically constructed based on 0–1 integer programming to describe passengers’ responses to alternative origin station closure scenarios and destination station closure scenarios; this model also considers the availability of multi-mode transportation and the uncertain duration of the station closure; (2) An integrated solution algorithm based on the passenger simulation is developed to solve the proposed model and to estimate the effects of a station closure on passenger demand in a rail transit network. Furthermore, 13 groups of numerical experiments based on the Beijing rail transit network are performed as case studies with 2,074,267 records of smart card data. The comparisons of the model outputs and the manual survey show that the accuracy of our proposed behavior optimization model is approximately 80%. The results also show that our model can be used to capture the passenger behavior and to quantitatively estimate the effects of alternative closure scenarios on passenger flow demand for the rail transit network. Moreover, the closure duration and its overestimation greatly influence the individual behavioral choices of the affected passengers and the passenger demand. Furthermore, if the rail transit operator can more accurately estimate the closure duration (namely, as g approaches 1), the impact of the closure can be somewhat mitigated. PMID:27935963

  12. Modeling and Simulating Passenger Behavior for a Station Closure in a Rail Transit Network.

    PubMed

    Yin, Haodong; Han, Baoming; Li, Dewei; Wu, Jianjun; Sun, Huijun

    2016-01-01

    A station closure is an abnormal operational situation in which the entrances or exits of a rail transit station have to be closed for some time due to an unexpected incident. A novel approach is developed to estimate the impacts of the alternative station closure scenarios on both passenger behavioral choices at the individual level and passenger demand at the disaggregate level in a rail transit network. Therefore, the contributions of this study are two-fold: (1) A basic passenger behavior optimization model is mathematically constructed based on 0-1 integer programming to describe passengers' responses to alternative origin station closure scenarios and destination station closure scenarios; this model also considers the availability of multi-mode transportation and the uncertain duration of the station closure; (2) An integrated solution algorithm based on the passenger simulation is developed to solve the proposed model and to estimate the effects of a station closure on passenger demand in a rail transit network. Furthermore, 13 groups of numerical experiments based on the Beijing rail transit network are performed as case studies with 2,074,267 records of smart card data. The comparisons of the model outputs and the manual survey show that the accuracy of our proposed behavior optimization model is approximately 80%. The results also show that our model can be used to capture the passenger behavior and to quantitatively estimate the effects of alternative closure scenarios on passenger flow demand for the rail transit network. Moreover, the closure duration and its overestimation greatly influence the individual behavioral choices of the affected passengers and the passenger demand. Furthermore, if the rail transit operator can more accurately estimate the closure duration (namely, as g approaches 1), the impact of the closure can be somewhat mitigated.

  13. Metal contact engineering and registration-free fabrication of complementary metal-oxide semiconductor integrated circuits using aligned carbon nanotubes.

    PubMed

    Wang, Chuan; Ryu, Koungmin; Badmaev, Alexander; Zhang, Jialu; Zhou, Chongwu

    2011-02-22

    Complementary metal-oxide semiconductor (CMOS) operation is very desirable for logic circuit applications as it offers rail-to-rail swing, larger noise margin, and small static power consumption. However, it remains to be a challenging task for nanotube-based devices. Here in this paper, we report our progress on metal contact engineering for n-type nanotube transistors and CMOS integrated circuits using aligned carbon nanotubes. By using Pd as source/drain contacts for p-type transistors, small work function metal Gd as source/drain contacts for n-type transistors, and evaporated SiO(2) as a passivation layer, we have achieved n-type transistor, PN diode, and integrated CMOS inverter with an air-stable operation. Compared with other nanotube n-doping techniques, such as potassium doping, PEI doping, hydrazine doping, etc., using low work function metal contacts for n-type nanotube devices is not only air stable but also integrated circuit fabrication compatible. Moreover, our aligned nanotube platform for CMOS integrated circuits shows significant advantage over the previously reported individual nanotube platforms with respect to scalability and reproducibility and suggests a practical and realistic approach for nanotube-based CMOS integrated circuit applications.

  14. Application Analysis of BIM Technology in Metro Rail Transit

    NASA Astrophysics Data System (ADS)

    Liu, Bei; Sun, Xianbin

    2018-03-01

    With the rapid development of urban roads, especially the construction of subway rail transit, it is an effective way to alleviate urban traffic congestion. There are limited site space, complex resource allocation, tight schedule, underground pipeline complex engineering problems. BIM technology, three-dimensional visualization, parameterization, virtual simulation and many other advantages can effectively solve these technical problems. Based on the project of Shenzhen Metro Line 9, BIM technology is innovatively researched throughout the lifecycle of BIM technology in the context of the metro rail transit project rarely used at this stage. The model information file is imported into Navisworks for four-dimensional animation simulation to determine the optimum construction scheme of the shield machine. Subway construction management application platform based on BIM and private cloud technology, the use of cameras and sensors to achieve electronic integration, dynamic monitoring of the operation and maintenance of underground facilities. Make full use of the many advantages of BIM technology to improve the engineering quality and construction efficiency of the subway rail transit project and to complete the operation and maintenance.

  15. Apparatus for insulating windows and the like

    DOEpatents

    Mitchell, R.A.

    1984-06-19

    Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in kit'' form. 11 figs.

  16. Apparatus for insulating windows and the like

    DOEpatents

    Mitchell, Robert A.

    1984-01-01

    Apparatus for insulating window openings through walls and the like includes a thermal shutter, a rail for mounting the shutter adjacent to the window opening and a coupling for connecting the shutter to the rail. The thermal shutter includes an insulated panel adhered to frame members which surround the periphery of the panel. The frame members include a hard portion for providing the frame and a soft portion for providing a seal with that portion of the wall adjacent to the periphery of the opening. The coupling means is preferably integral with the attachment rail. According to a preferred embodiment, the coupling means includes a continuous hinge of reduced thickness. The thermal shutter can be permanently attached, hinged, bi-folded, or sliding with respect to the window and wall. A distribution method is to market the apparatus in "kit" form.

  17. 36. GENERAL VIEW OF SLC3W MST STATION 85.5 FROM SOUTHEAST ...

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

    36. GENERAL VIEW OF SLC-3W MST STATION 85.5 FROM SOUTHEAST CORNER SHOWING REMOVABLE SAFETY RAILS AROUND CENTRAL OPENING, STRETCH SLING CYLINDER, AND PULLEY ON WEST SIDE, AIR-CONDITIONING DUCTING IN NORTHWEST CORNER, PLATFORM SEGMENTS AND HINGES - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 West, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  18. Navigation Channel Improvement, Columbia River, Oregon and Washington - Oak Point to Longview Reach, River Miles 53 to 65. Hydraulic Model Investigation.

    DTIC Science & Technology

    1984-09-01

    channel to Mount St. Helens (RM 87) and Rainier , Oregon, (RM 68), respectively. Side channels are located at Cathlamet and Longview. Pu s L 3. The...to 12 u : survey the movable bed consisted of a vertically graduated rod which was referenced to a portable horizontally graduated rail mounted on the

  19. PBF Reactor Building (PER620). Camera faces south toward verticallift door, ...

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

    PBF Reactor Building (PER-620). Camera faces south toward vertical-lift door, which is closed. Note crane and its trolley positioned near door; its rails along side walls. Reactor vessel and lifting beams are positioned above reactor pit. Photographer: John Capek. Date: January 9, 1970. INEEL negative no. 70-132 - Idaho National Engineering Laboratory, SPERT-I & Power Burst Facility Area, Scoville, Butte County, ID

  20. Research on squeal noise of tread brake system in rail freight vehicle

    NASA Astrophysics Data System (ADS)

    Zhang, Jun; Li, Yong-hua; Fang, Ji; Zhao, Wen-zhong

    2017-07-01

    Brake squeal is a result of a unstable flutter from brake system, it results to the noise pollution in railway side and excessive wear of wheel tread. A finite element model of brake system for rail freight vehicle is set up, the contact and friction between the brake shoe and wheel tread is considered, the complex modals of brake system are calculated, the possibility of happening chatter and squeal noise are analyzed. The results show that the pressure angle or the brake force direction have a important influence on the unstable chatter and squeal noise, the more greater the pressure angle deviates from the wheel center, the more greater the possibility of happening chatter and squeal noise is, and the possibility of happening chatter and squeal noise is also increased along with the addition of friction factor.

  1. Highly Uniform Carbon Nanotube Field-Effect Transistors and Medium Scale Integrated Circuits.

    PubMed

    Chen, Bingyan; Zhang, Panpan; Ding, Li; Han, Jie; Qiu, Song; Li, Qingwen; Zhang, Zhiyong; Peng, Lian-Mao

    2016-08-10

    Top-gated p-type field-effect transistors (FETs) have been fabricated in batch based on carbon nanotube (CNT) network thin films prepared from CNT solution and present high yield and highly uniform performance with small threshold voltage distribution with standard deviation of 34 mV. According to the property of FETs, various logical and arithmetical gates, shifters, and d-latch circuits were designed and demonstrated with rail-to-rail output. In particular, a 4-bit adder consisting of 140 p-type CNT FETs was demonstrated with higher packing density and lower supply voltage than other published integrated circuits based on CNT films, which indicates that CNT based integrated circuits can reach to medium scale. In addition, a 2-bit multiplier has been realized for the first time. Benefitted from the high uniformity and suitable threshold voltage of CNT FETs, all of the fabricated circuits based on CNT FETs can be driven by a single voltage as small as 2 V.

  2. Evaluation of rail test frequencies using risk analysis

    DOT National Transportation Integrated Search

    2009-03-03

    Several industries now use risk analysis to develop : inspection programs to ensure acceptable mechanical integrity : and reliability. These industries include nuclear and electric : power generation, oil refining, gas processing, onshore and : offsh...

  3. 400 South corridor assessment.

    DOT National Transportation Integrated Search

    2017-03-01

    Local transportation agencies in the Salt Lake City (SLC) Metropolitan Area spent more than a decade : working toward building a sustainable regional transportation system. Light Rail Transit (LRT) is an : integral part of that system. Currently, thr...

  4. On the real-time estimation of the wheel-rail contact force by means of a new nonlinear estimator design model

    NASA Astrophysics Data System (ADS)

    Strano, Salvatore; Terzo, Mario

    2018-05-01

    The dynamics of the railway vehicles is strongly influenced by the interaction between the wheel and the rail. This kind of contact is affected by several conditioning factors such as vehicle speed, wear, adhesion level and, moreover, it is nonlinear. As a consequence, the modelling and the observation of this kind of phenomenon are complex tasks but, at the same time, they constitute a fundamental step for the estimation of the adhesion level or for the vehicle condition monitoring. This paper presents a novel technique for the real time estimation of the wheel-rail contact forces based on an estimator design model that takes into account the nonlinearities of the interaction by means of a fitting model functional to reproduce the contact mechanics in a wide range of slip and to be easily integrated in a complete model based estimator for railway vehicle.

  5. Rolling the "Black Pearl" over: Analyzing the Physics of a Movie Clip

    ERIC Educational Resources Information Center

    Mungan, Carl E.; Emery, John D.

    2011-01-01

    In the third movie ("At World's End") in the "Pirates of the Caribbean" series, Jack Sparrow and his crew need to roll their ship (the "Black Pearl") over in order to bring it back to the living world during a green flash at sunset. They do so by running back and forth from one side railing to the other on the top deck. In addition, Captain…

  6. PBF Reactor Building (PER620). Camera is in cab of electricpowered ...

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

    PBF Reactor Building (PER-620). Camera is in cab of electric-powered rail crane and facing east. Reactor pit and storage canal have been shaped. Floors for wings on east and west side are above and below reactor in view. Photographer: Larry Page. Date: August 23, 1967. INEEL negative no. 67-4403 - Idaho National Engineering Laboratory, SPERT-I & Power Burst Facility Area, Scoville, Butte County, ID

  7. 4. BUNKER HILL LEAD SMELTER. VIEW IS FROM RIDGE ABOVE ...

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

    4. BUNKER HILL LEAD SMELTER. VIEW IS FROM RIDGE ABOVE GOVERNMENT GULCH LOOKING TO THE EAST. IN THE RIGHT MID GROUND, CARPENTER SHOP BUILDINGS AND FRAMING SHEDS ARE VISIBLE. THE BACKGROUND FACILITIES VISIBLE FROM L. TO R. ARE: SMELTER OFFICE, REFINERIES, SLAG FUMING STACKS, HIGH VELOCITY FLUE, BAG HOUSE, 200-FOOT STACK, AND 715-FOOT STACK. - Bunker Hill Lead Smelter, Bradley Rail Siding, Kellogg, Shoshone County, ID

  8. Wheat Fields, Flour Mills, and Railroads: A Web of Interdependence. Teaching with Historic Places.

    ERIC Educational Resources Information Center

    Koman, Rita G.

    By 1860 much of the beauty of St. Anthony Falls in Minneapolis (Minnesota) had been destroyed, as mills on both sides of the river used the power of the falls to turn millions of bushels of wheat into flour. Steel rails linked bonanza farms hundreds of miles to the west to the mills. The mills, the farms, and the railroads depended on each other…

  9. Vertically integrated, three-dimensional nanowire complementary metal-oxide-semiconductor circuits.

    PubMed

    Nam, SungWoo; Jiang, Xiaocheng; Xiong, Qihua; Ham, Donhee; Lieber, Charles M

    2009-12-15

    Three-dimensional (3D), multi-transistor-layer, integrated circuits represent an important technological pursuit promising advantages in integration density, operation speed, and power consumption compared with 2D circuits. We report fully functional, 3D integrated complementary metal-oxide-semiconductor (CMOS) circuits based on separate interconnected layers of high-mobility n-type indium arsenide (n-InAs) and p-type germanium/silicon core/shell (p-Ge/Si) nanowire (NW) field-effect transistors (FETs). The DC voltage output (V(out)) versus input (V(in)) response of vertically interconnected CMOS inverters showed sharp switching at close to the ideal value of one-half the supply voltage and, moreover, exhibited substantial DC gain of approximately 45. The gain and the rail-to-rail output switching are consistent with the large noise margin and minimal static power consumption of CMOS. Vertically interconnected, three-stage CMOS ring oscillators were also fabricated by using layer-1 InAs NW n-FETs and layer-2 Ge/Si NW p-FETs. Significantly, measurements of these circuits demonstrated stable, self-sustained oscillations with a maximum frequency of 108 MHz, which represents the highest-frequency integrated circuit based on chemically synthesized nanoscale materials. These results highlight the flexibility of bottom-up assembly of distinct nanoscale materials and suggest substantial promise for 3D integrated circuits.

  10. Engineering Analysis of Stresses in Railroad Rails.

    DOT National Transportation Integrated Search

    1981-10-01

    One portion of the Federal Railroad Administration's (FRA) Track Performance Improvement Program is the development of engineering and analytic techniques required for the design and maintenance of railroad track of increased integrity and safety. Un...

  11. Preliminary Description of Stresses in Railroad Rail

    DOT National Transportation Integrated Search

    1976-11-01

    One portion of the Federal Railroad Administration's (FRA) Track Performance Improvement Program is the development of engineering and analytic techniques required for the design and maintenance of railroad track of increased integrity and safety. Un...

  12. A nonlinear and fractional derivative viscoelastic model for rail pads in the dynamic analysis of coupled vehicle-slab track systems

    NASA Astrophysics Data System (ADS)

    Zhu, Shengyang; Cai, Chengbiao; Spanos, Pol D.

    2015-01-01

    A nonlinear and fractional derivative viscoelastic (FDV) model is used to capture the complex behavior of rail pads. It is implemented into the dynamic analysis of coupled vehicle-slab track (CVST) systems. The vehicle is treated as a multi-body system with 10 degrees of freedom, and the slab track is represented by a three layer Bernoulli-Euler beam model. The model for the rail pads is one dimensional, and the force-displacement relation is based on a superposition of elastic, friction, and FDV forces. This model takes into account the influences of the excitation frequency and of the displacement amplitude through a fractional derivative element, and a nonlinear friction element, respectively. The Grünwald representation of the fractional derivatives is employed to numerically solve the fractional and nonlinear equations of motion of the CVST system by means of an explicit integration algorithm. A dynamic analysis of the CVST system exposed to excitations of rail harmonic irregularities is carried out, pointing out the stiffness and damping dependence on the excitation frequency and the displacement amplitude. The analysis indicates that the dynamic stiffness and damping of the rail pads increase with the excitation frequency while they decrease with the displacement amplitude. Furthermore, comparisons between the proposed model and ordinary Kelvin model adopted for the CVST system, under excitations of welded rail joint irregularities and of random track irregularities, are conducted in the time domain as well as in the frequency domain. The proposed model is shown to possess several modeling advantages over the ordinary Kelvin element which overestimates both the stiffness and damping features at high frequencies.

  13. KSC-99pp1186

    NASA Image and Video Library

    1999-10-07

    KENNEDY SPACE CENTER, FLA. -- Escort vehicles prepare to leave the Shuttle Landing Facility with the S1 truss (at right) on its trek to the Operations and Checkout Building. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The truss arrived at KSC aboard NASA's Super Guppy, seen in the background. The aircraft is uniquely built with a 25-foot diameter fuselage designed to handle oversized loads and a "fold-away" nose that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight

  14. Transit-oriented development (TOD) in metro Detroit.

    DOT National Transportation Integrated Search

    2014-03-01

    The term transit-oriented development (TOD) is being used increasingly in transit literature, particularly in studies related to : planning and design of urban rail transit. TOD relates to the integration of diverse (but desirable) land uses with tra...

  15. Integrated Fare Card System Synthesis Report

    DOT National Transportation Integrated Search

    2007-12-31

    The Massachusetts Bay Transportation Authority has developed a contactless fare card system to automate the collection of fares along its rail and bus route services. At the same time, there are indications that other regional transit authorities as ...

  16. 40. ARAIII Prototype assembly and evaluation building ARA630. East end ...

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

    40. ARA-III Prototype assembly and evaluation building ARA-630. East end and south side of building. Camera facing west. Roof railing is part of demolition preparations. Building beyond ARA-622 is ARA-621. In left of view is reactor building. ARA-607 is low-roofed portion, while high-bay portion is ARA-608. Ineel photo no. 3-27. - Idaho National Engineering Laboratory, Army Reactors Experimental Area, Scoville, Butte County, ID

  17. Highway-rail grade crossing surface material performance.

    DOT National Transportation Integrated Search

    2014-04-01

    Highway-Railroad grade crossings are an integral part of the transportation system, allowing the : two modes to operate in the same areas. Performance of the surface material at grade : crossings has been an ongoing issue. This study reviewed the lit...

  18. Radiation-Hard Complementary Integrated Circuits Based on Semiconducting Single-Walled Carbon Nanotubes.

    PubMed

    McMorrow, Julian J; Cress, Cory D; Gaviria Rojas, William A; Geier, Michael L; Marks, Tobin J; Hersam, Mark C

    2017-03-28

    Increasingly complex demonstrations of integrated circuit elements based on semiconducting single-walled carbon nanotubes (SWCNTs) mark the maturation of this technology for use in next-generation electronics. In particular, organic materials have recently been leveraged as dopant and encapsulation layers to enable stable SWCNT-based rail-to-rail, low-power complementary metal-oxide-semiconductor (CMOS) logic circuits. To explore the limits of this technology in extreme environments, here we study total ionizing dose (TID) effects in enhancement-mode SWCNT-CMOS inverters that employ organic doping and encapsulation layers. Details of the evolution of the device transport properties are revealed by in situ and in operando measurements, identifying n-type transistors as the more TID-sensitive component of the CMOS system with over an order of magnitude larger degradation of the static power dissipation. To further improve device stability, radiation-hardening approaches are explored, resulting in the observation that SWNCT-CMOS circuits are TID-hard under dynamic bias operation. Overall, this work reveals conditions under which SWCNTs can be employed for radiation-hard integrated circuits, thus presenting significant potential for next-generation satellite and space applications.

  19. Distributed support modelling for vertical track dynamic analysis

    NASA Astrophysics Data System (ADS)

    Blanco, B.; Alonso, A.; Kari, L.; Gil-Negrete, N.; Giménez, J. G.

    2018-04-01

    The finite length nature of rail-pad supports is characterised by a Timoshenko beam element formulation over an elastic foundation, giving rise to the distributed support element. The new element is integrated into a vertical track model, which is solved in frequency and time domain. The developed formulation is obtained by solving the governing equations of a Timoshenko beam for this particular case. The interaction between sleeper and rail via the elastic connection is considered in an analytical, compact and efficient way. The modelling technique results in realistic amplitudes of the 'pinned-pinned' vibration mode and, additionally, it leads to a smooth evolution of the contact force temporal response and to reduced amplitudes of the rail vertical oscillation, as compared to the results from concentrated support models. Simulations are performed for both parametric and sinusoidal roughness excitation. The model of support proposed here is compared with a previous finite length model developed by other authors, coming to the conclusion that the proposed model gives accurate results at a reduced computational cost.

  20. 49 CFR 231.24 - Box and other house cars with roofs, 16 feet 10 inches or more above top of rail. 1

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... for “Box and Other House Cars.” (3) Location. One (1) near each side of each end of car on outer edge... 49 Transportation 4 2011-10-01 2011-10-01 false Box and other house cars with roofs, 16 feet 10... APPLIANCE STANDARDS § 231.24 Box and other house cars with roofs, 16 feet 10 inches or more above top of...

  1. 49 CFR 231.24 - Box and other house cars with roofs, 16 feet 10 inches or more above top of rail. 1

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... for “Box and Other House Cars.” (3) Location. One (1) near each side of each end of car on outer edge... 49 Transportation 4 2013-10-01 2013-10-01 false Box and other house cars with roofs, 16 feet 10... APPLIANCE STANDARDS § 231.24 Box and other house cars with roofs, 16 feet 10 inches or more above top of...

  2. 49 CFR 231.24 - Box and other house cars with roofs, 16 feet 10 inches or more above top of rail. 1

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... for “Box and Other House Cars.” (3) Location. One (1) near each side of each end of car on outer edge... 49 Transportation 4 2010-10-01 2010-10-01 false Box and other house cars with roofs, 16 feet 10... APPLIANCE STANDARDS § 231.24 Box and other house cars with roofs, 16 feet 10 inches or more above top of...

  3. 49 CFR 231.24 - Box and other house cars with roofs, 16 feet 10 inches or more above top of rail. 1

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... for “Box and Other House Cars.” (3) Location. One (1) near each side of each end of car on outer edge... 49 Transportation 4 2012-10-01 2012-10-01 false Box and other house cars with roofs, 16 feet 10... APPLIANCE STANDARDS § 231.24 Box and other house cars with roofs, 16 feet 10 inches or more above top of...

  4. 49 CFR 231.24 - Box and other house cars with roofs, 16 feet 10 inches or more above top of rail. 1

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... for “Box and Other House Cars.” (3) Location. One (1) near each side of each end of car on outer edge... 49 Transportation 4 2014-10-01 2014-10-01 false Box and other house cars with roofs, 16 feet 10... APPLIANCE STANDARDS § 231.24 Box and other house cars with roofs, 16 feet 10 inches or more above top of...

  5. COOLING TOWER PUMP HOUSE, TRA606. THREE OF SIX SECTIONS OF ...

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

    COOLING TOWER PUMP HOUSE, TRA-606. THREE OF SIX SECTIONS OF COOLING TOWER ARE VISIBLE ABOVE RAILING. PUMP HOUSE IN FOREGROUND IS ON SOUTH SIDE OF COOLING TOWER. NOTE THREE PIPES TAKING WATER FROM PUMP HOUSE TO HOT DECK OF COOLING TOWER. EMERGENCY WATER SUPPLY TOWER IS ALSO IN VIEW. INL NEGATIVE NO. 6197. Unknown Photographer, 6/27/1952 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  6. FAST CHOPPER BUILDING, TRA665. CAMERA FACING NORTH. NOTE BRICKEDIN WINDOW ...

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

    FAST CHOPPER BUILDING, TRA-665. CAMERA FACING NORTH. NOTE BRICKED-IN WINDOW ON RIGHT SIDE (BELOW PAINTED NUMERALS "665"). SLIDING METAL DOOR ON COVERED RAIL AT UPPER LEVEL. SHELTERED ENTRANCE TO STEEL SHIELDING DOOR. DOOR INTO MTR SERVICE BUILDING, TRA-635, STANDS OPEN. MTR BEHIND CHOPPER BUILDING. INL NEGATIVE NO. HD42-1. Mike Crane, Photographer, 3/2004 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  7. Space shuttle heat pipe thermal control systems

    NASA Technical Reports Server (NTRS)

    Alario, J.

    1973-01-01

    Heat pipe (HP) thermal control systems designed for possible space shuttle applications were built and tested under this program. They are: (1) a HP augmented cold rail, (2) a HP/phase change material (PCM) modular heat sink and (3) a HP radiating panel for compartment temperature control. The HP augmented cold rail is similar to a standard two-passage fluid cold rail except that it contains an integral, centrally located HP throughout its length. The central HP core helps to increase the local power density capability by spreading concentrated heat inputs over the entire rail. The HP/PCM modular heat sink system consists of a diode HP connected in series to a standard HP that has a PCM canister attached to its mid-section. It is designed to connect a heat source to a structural heat sink during normal operation, and to automatically decouple from it and sink to the PCM whenever structural temperatures are too high. The HP radiating panel is designed to conductively couple the panel feeder HPs directly to a fluid line that serves as a source of waste heat. It is a simple strap-on type of system that requires no internal or external line modifications to distribute the heat to a large radiating area.

  8. 49 CFR 210.3 - Applicability.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... emitted by moving rail cars and locomotives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders, switcher locomotives, car... apply to— (1) Steam locomotives; (2) Street, suburban, or interurban electric railways unless operated...

  9. 49 CFR 210.3 - Applicability.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... emitted by moving rail cars and locomotives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders, switcher locomotives, car... apply to— (1) Steam locomotives; (2) Street, suburban, or interurban electric railways unless operated...

  10. 49 CFR 210.3 - Applicability.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... emitted by moving rail cars and locomotives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders, switcher locomotives, car... apply to— (1) Steam locomotives; (2) Street, suburban, or interurban electric railways unless operated...

  11. 49 CFR 210.3 - Applicability.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... emitted by moving rail cars and locomotives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders, switcher locomotives, car... apply to— (1) Steam locomotives; (2) Street, suburban, or interurban electric railways unless operated...

  12. 49 CFR 210.3 - Applicability.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... emitted by moving rail cars and locomotives (including the sound produced by refrigeration and air conditioning units that are an integral element of such equipment), active retarders, switcher locomotives, car... apply to— (1) Steam locomotives; (2) Street, suburban, or interurban electric railways unless operated...

  13. Criteria and Procedures for Assessing Occupied Volume Integrity

    DOT National Transportation Integrated Search

    2010-10-01

    With the potential for tremendous growth in the passenger rail : industry, providing for the safety of the train-riding public and : the crews who transport them becomes an ever-greater priority. : To provide for safety while making best use of its r...

  14. Multiple pole electromagnetic propulsion system with separated ballistic guidance and electrical current contact surfaces

    DOEpatents

    Sims, Jr., James R.

    2008-07-15

    An electromagnetic propulsion system is disclosed having separate rails for ballistic guidance and for carrying current. In this system, one or more pairs of ballistic guidance rails are provided, with each ballistic guidance rail having a pair of current carrying rails joined to it to form a combined rail. Each combined rail is separated electrically from adjacent combined rails by electrically insulating blocks. Each of the current carrying rails in a given combined rail pair have the same electrical polarity, and the polarities alternate between adjacent combined rails. Armatures contact current carrying rails to complete the circuit to generate the accelerating Lorentz force on the armatures. Bore riders on the sabot and/or projectile are in contact with the ballistic guide rails. Separation of the current carrying and ballistic guidance functions increases resistance of the system to rail movement and bending, as well as reduced wear/damage to the rails. In further embodiments, a circumferential over wrap providing compressive force on the rails further increases resistance of the system to rail movement and bending.

  15. KSC-99pp1181

    NASA Image and Video Library

    1999-10-06

    KENNEDY SPACE CENTER, FLA. -- NASA's Super Guppy airplane, with the International Space Station's (ISS) S1 truss aboard, rolls to a stop at KSC's Shuttle Landing Facility. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is to be transferred to the Operations and Checkout Building

  16. KSC-99pp1180

    NASA Image and Video Library

    1999-10-06

    KENNEDY SPACE CENTER, FLA. -- NASA's Super Guppy airplane, with the International Space Station's (ISS) S1 truss aboard, arrives at KSC's Shuttle Landing Facility from Marshall Space Flight Center. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is to be moved to the Operations and Checkout Building

  17. KSC-99pp1182

    NASA Image and Video Library

    1999-10-07

    KENNEDY SPACE CENTER, FLA. -- At KSC's Shuttle Landing Facility, NASA's Super Guppy opens to reveal its cargo, the International Space Station's (ISS) S1 truss. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is to be transferred to the Operations and Checkout Building

  18. KSC-99pp1185

    NASA Image and Video Library

    1999-10-07

    KENNEDY SPACE CENTER, FLA. -- At the Shuttle Landing Facility, workers attach cranes to the S1 truss, a segment of the International Space Station, to lift the truss to a payload transporter for its transfer to the Operations and Checkout Building. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The truss arrived at KSC aboard NASA's Super Guppy, with a 25-foot diameter fuselage designed to handle oversized loads. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight

  19. KSC-99pp1183

    NASA Image and Video Library

    1999-10-07

    KENNEDY SPACE CENTER, FLA. -- At the Shuttle Landing Facility, the newly arrived S1 truss, a segment of the International Space Station (ISS), is offloaded from NASA's Super Guppy aircraft. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is being transferred to the Operations and Checkout Building

  20. 77 FR 17121 - RailAmerica, Inc., Palm Beach Rail Holding, Inc., RailAmerica Transportation Corp., RailTex, Inc...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-23

    ... Group, LLC, and RR Acquisition Holding, LLC--Control Exemption--Wellsboro & Corning Railroad, LLC Rail.... (RTC), RailTex, Inc. (RailTex), Fortress Investment Group, LLC (Fortress), and RR Acquisition Holding... acquire indirect control of the Wellsboro & Corning Railroad, LLC (W&C), a Class III rail carrier, through...

  1. Annual Report Fiscal Year 2003 of the Secretary of the Army on Civil Works Activities (1 October 2002 - 30 September 2003)

    DTIC Science & Technology

    2004-07-29

    Terminal facilities. Wharves suitable for landing or loading are at Bath, Woolwich, Richmond , Randolph, Gardiner, Hallowell and Augusta. Rail...RI 1882 5,000 50 - Provincetown Harbor, MA 5 1997 3,889,577 1,053,966 797,847 Richmond Harbor, ME 4 1883 20,000 - - Richmond’s Island Harbor...through Philadelphia Harbor along east side of channel and Port Richmond anchorage to 37 feet deep, except for that portion of channel which forms a

  2. Dust Tolerant Connectors

    NASA Technical Reports Server (NTRS)

    Mueller, Robert P. (Inventor); Lewis, Mark E. (Inventor); Bastin, Gary L. (Inventor); Branch, Matthew C. (Inventor); Carlson, Jeffrey W. (Inventor); Dokos, Adam G. (Inventor); Murtland, Kevin A. (Inventor); Nugent, Matthew W. (Inventor); Tamasy, Gabor J. (Inventor); Townsend, III, Ivan I. (Inventor)

    2016-01-01

    Methods and systems may provide for debris exclusion and removal apparatuses for connectors which have inverting end caps with a multi-axis lever configuration, inverting end caps with enlarged handle and/or side rail configurations, rotating end cap configurations, poppet valve configurations, O-ring configurations, filament barrier configurations, retractable cover configurations, clamshell end cap configurations, or any combination thereof. Apparatuses may also provide for an intelligent electrical connector system capable of detecting damage to or faults within a plurality of conductors and then rerouting the energy through a non-damaged spare conductor.

  3. PBF contextual view shows relationship between PBF Control Building (PER619, ...

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

    PBF contextual view shows relationship between PBF Control Building (PER-619, in foreground at right) and SPERT-I Control Building (PER-601). Walkway with railing connects to waste reduction operations support building (PER-632), built in 1981. Note paneled stucco siding applied to PER-619 after 1980. Original concrete block is exposed at corner. Date: July 2004. INEEL negative no. HD-41-9-2 - Idaho National Engineering Laboratory, SPERT-I & Power Burst Facility Area, Scoville, Butte County, ID

  4. The War Horse: A Bibliography of Periodical Articles.

    DTIC Science & Technology

    1983-01-01

    NOTES 19. KEY WORDS (Continue an reeroe side if neceeary ad identify by block number) dibliographieFs, horse -s, equines , warfare, Aorld ..ar I, per...34 Equine Reparations," AMCAVJ, 55:63-66, Nov 1946. 54. Cowin, William B. "Shipment of Men and Horses by Rail," CAVJ, 24:236-248, Jul 1913 - May 1914. 55...A-I2214 THE WAR HORSE : A BIBLIOGRAPHY OF PERIODICAL ARTICLES 1/1 (U) ARMY FIELD ARTILLER Y SCHOOL FORT SILL OK MORRIS SWETT L IRRARY L L MILLER 01

  5. Variable Spaced Grating (VSG) Snout, Rotator and Rails for use at LLE

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

    Mukherjee, S K; Emig, J A; Griffith, L V

    2010-01-25

    The Variable Spaced Grating (VSG) is a spectrometer snout mounted to an X-Ray Framing Camera (XRFC) through the Unimount flange. This equipment already exists and is used at the University of Rochester, Laboratory for Laser Energetics (LLE) facility. The XRFC and the Unimount flange are designed by LLE. The Tilt Rotator fixture that mounts next to the XRFC and the cart rails are designed by LLNL, and are included in this safety note. The other related components, such as the TIM rails and the Unimount flange, are addressed in a separate safety note, EDSN09-500005-AA. The Multipurpose Spectrometer (MSPEC) and VSGmore » are mounted on the TIM Boat through the cart rails that are very similar in design. The tilt rotator combination with the Unimount flange is also a standard mounting procedure. The later mounting system has been included in this safety note. Figure-1 shows the interface components and the VSG snout. Figure-2 shows the VSG assembly mounted on the Unimount flange. The calibration pointer attachment is shown in place of the snout. There are two types of VSG, one made of 6061-T6 aluminum, weighing approximately 3 pounds, and the other made of 304 stainless steel, weighing approximately 5.5 pounds. This safety note examines the VSG steel design. Specific experiments may require orienting the VSG snout in 90 degrees increment with respect to the Unimount flange. This is done by changing the bolts position on the VSG-main body adapter flange to the Unimount adapter plate. There is no hazard involved in handling the VSG during this procedure as it is done outside the target chamber on the cart rail before installing on the TIM. This safety note addresses the mechanical integrity of the VSG structure, the tilt rotating fixture, the cart rails with handle and their connections. Safety Factors are also calculated for the MSPEC in place of the VSG.« less

  6. Impact of the rail-pad multi-discrete model upon the prediction of the rail response

    NASA Astrophysics Data System (ADS)

    Mazilu, T.; Leu, M.

    2017-08-01

    Wheel/rail vibration has many technical effects such as wear of the rolling surfaces, rolling noise, settlement of the ballast and subgrade etc. This vibration is depending on the rail pad characteristic and subsequently, it is important to have an accurate overview on the relation between the rail pad characteristic and the level of the wheel/rail vibration. To this end, much theoretical and experimental research has been developed in the past, and for the theoretical approach the track model, in general, and, particularly, the rail pad model is of crucial importance. Usually, the rail pad model is discrete model one, neglecting the length of the rail pad. This fact is questionable because the sleepers span is only 4 times the rail pad length. Using the rail pad discrete model, the rail response is overestimated when the frequency of the excitation equals the pinned-pinned resonance frequency. In this paper, a multi-discrete model for the rail pad, consisting in many Kelvin-Voigt parallel systems, is inserted into an analytical model of the track. The track model is reduced to a rail taken as infinite Timoshenko beam, discretely supported via rail pad, sleeper and ballast. The influence of the number of Kelvin-Voigt systems of the rail pad model on the rail response is analysed.

  7. Structure and Properties of Thermite Welds in Premium Rails

    DOT National Transportation Integrated Search

    1985-12-01

    Thermite welds were used to join combinations of premium rails and AREA Controlled Cooled Carbon rails (i.e., standard rails). The premium rails comprised head-hardened rails and CrMo, CrV and Cr alloy rails. A major objective was to determine the fe...

  8. Integrated corridor management initiative : demonstration phase evaluation, San Diego institutional and organizational analysis test plan.

    DOT National Transportation Integrated Search

    2003-03-01

    In March of 2001, the Federal Highway Administration (FHWA), in conjunction with the Federal Transit Administration (FTA), engaged Gannett Fleming, Inc., to develop the first ever Tunnel Management System to benefit both highway and rail transit tunn...

  9. Transit asset inventory development and integration : asset management methodology/condition assessment methodology research.

    DOT National Transportation Integrated Search

    2012-09-01

    This report summarizes the results of a 13-month effort by CodeRed Business Solutions (CRBS) to consider how urban rail transit agencies can leverage data within their maintenance management systems to build asset inventories for higher-level analysi...

  10. Investigation of best practices for maintenance of concrete bridge railings : [tech summary].

    DOT National Transportation Integrated Search

    2015-01-01

    The development of bio lms on concrete structures has a negative impact on aesthetics as well as on the performance and integrity : of concrete structures. Bio lms develop and grow easily when the right conditions are present, such as high rela...

  11. A 160 μA biopotential acquisition IC with fully integrated IA and motion artifact suppression.

    PubMed

    Van Helleputte, Nick; Kim, Sunyoung; Kim, Hyejung; Kim, Jong Pal; Van Hoof, Chris; Yazicioglu, Refet Firat

    2012-12-01

    This paper proposes a 3-channel biopotential monitoring ASIC with simultaneous electrode-tissue impedance measurements which allows real-time estimation of motion artifacts on each channel using an an external μC. The ASIC features a high performance instrumentation amplifier with fully integrated sub-Hz HPF rejecting rail-to-rail electrode-offset voltages. Each readout channel further has a programmable gain amplifier and programmable 4th order low-pass filter. Time-multiplexed 12 b SAR-ADCs are used to convert all the analog data to digital. The ASIC achieves >; 115 dB of CMRR (at 50/60 Hz), a high input impedance of >; 1 GΩ and low noise (1.3 μVrms in 100 Hz). Unlike traditional methods, the ASIC is capable of actual motion artifact suppression in the analog domain before final amplification. The complete ASIC core operates from 1.2 V with 2 V digital IOs and consumes 200 μW when all 3 channels are active.

  12. Electron-beam-evaporated thin films of hafnium dioxide for fabricating electronic devices

    DOE PAGES

    Xiao, Zhigang; Kisslinger, Kim

    2015-06-17

    Thin films of hafnium dioxide (HfO 2) are widely used as the gate oxide in fabricating integrated circuits because of their high dielectric constants. In this paper, the authors report the growth of thin films of HfO 2 using e-beam evaporation, and the fabrication of complementary metal-oxide semiconductor (CMOS) integrated circuits using this HfO 2 thin film as the gate oxide. The authors analyzed the thin films using high-resolution transmission electron microscopy and electron diffraction, thereby demonstrating that the e-beam-evaporation-grown HfO 2 film has a polycrystalline structure and forms an excellent interface with silicon. Accordingly, we fabricated 31-stage CMOS ringmore » oscillator to test the quality of the HfO 2 thin film as the gate oxide, and obtained excellent rail-to-rail oscillation waveforms from it, denoting that the HfO 2 thin film functioned very well as the gate oxide.« less

  13. 76 FR 55335 - Alternate Passenger Rail Service Pilot Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-07

    ... proceeding to develop a pilot program that permits a rail carrier or rail carriers that own infrastructure... develop a pilot program that permits a rail carrier or rail carriers that own infrastructure over which... that permits a rail carrier or rail carriers that own infrastructure over which Amtrak operates a...

  14. 77 FR 12107 - RailAmerica, Inc., Palm Beach Holding, Inc., RailAmerica Transportation Corp., RailTex, Inc...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-28

    ...., Palm Beach Holding, Inc., RailAmerica Transportation Corp., RailTex, Inc., Fortress Investment Group, LLC, and RR Acquisition Holding, LLC--Control Exemption--Marquette Rail, LLC AGENCY: Surface...), RailTex, Inc., Fortress Investment Group, LLC (Fortress), and RR Acquisition Holding, LLC (RR...

  15. 75 FR 76520 - Tennessee Southern Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-08

    ... family by converting two of its subsidiaries from corporations into limited liability companies: (1... Railroad Company, Patriot Rail, LLC, Patriot Rail Holdings LLC, and Patriot Rail Corp.--Corporate Family... Railroad Company (TSRR), Patriot Rail, LLC (PRL) and its subsidiaries, Patriot Rail Holdings LLC (PRH) and...

  16. Fast rail corrugation detection based on texture filtering

    NASA Astrophysics Data System (ADS)

    Xiao, Jie; Lu, Kaixia

    2018-02-01

    The condition detection of rails in high-speed railway is one of the important means to ensure the safety of railway transportation. In order to replace the traditional manual inspection, save manpower and material resources, and improve the detection speed and accuracy, it is of great significance to develop a machine vision system for locating and identifying defects on rails automatically. Rail defects exhibit different properties and are divided into various categories related to the type and position of flaws on the rail. Several kinds of interrelated factors cause rail defects such as type of rail, construction conditions, and speed and/or frequency of trains using the rail. Rail corrugation is a particular kind of defects that produce an undulatory deformation on the rail heads. In high speed train, the corrugation induces harmful vibrations on wheels and its components and reduces the lifetime of rails. This type of defects should be detected to avoid rail fractures. In this paper, a novel method for fast rail corrugation detection based on texture filtering was proposed.

  17. Securing America’s Passenger-Rail Systems

    DTIC Science & Technology

    2007-01-01

    around the world highlight the vulnerability of rail travel and the importance of rail security for these passengers. The use of passenger rail and...take to U.S. railways. Recent attacks on passenger-rail systems around the world highlight the vulnerability of rail travel and the importance of rail...rails (Boardman, 2005), making more than 3.5 billion trips (APTA, 2006).1 And these estimates do not count the passengers traveling on the National

  18. Green's functions for analysis of dynamic response of wheel/rail to vertical excitation

    NASA Astrophysics Data System (ADS)

    Mazilu, Traian

    2007-09-01

    An analytical model to simulate wheel/rail interaction using the Green's functions method is proposed in this paper. The model consists of a moving wheel on a discretely supported rail. Particularly for this model of rail, the bending and the longitudinal displacement are coupled due to the rail pad and a complex model of the rail pad is adopted. An efficient method for solving a time-domain analysis for wheel/rail interaction is presented. The method is based on the properties of the rail's Green functions and starting to these functions, a track's Green matrix is assembled for the numerical simulations of wheel/rail response due to three kinds of vertical excitations: the steady-state interaction, the rail corrugation and the wheel flat. The study points to influence of the worn rail—rigid contact—on variation in the wheel/rail contact force. The concept of pinned-pinned inhibitive rail pad is also presented.

  19. Load environment of rail joint bars : phase III : assessment of the effects of installation and maintenance practices

    DOT National Transportation Integrated Search

    2015-08-01

    A series of tests, aimed at assessing the structural integrity of joint bars under differing service conditions, were conducted to address concerns regarding joint bar failures in the revenue service environment. Data collected through the course of ...

  20. The Hang-Ups on Recycling

    ERIC Educational Resources Information Center

    Environmental Science and Technology, 1975

    1975-01-01

    While all seem to agree that recycling will alleviate solid waste problems and energy and mineral shortages, recycling is, at present, bogged down by the thin market for recycled materials, the recessionary business picture, the vertical integration of many companies, unfavorable tax laws, and high rail freight rates. (BT)

  1. FY04 IRAD-funded GSFC Lambda Network (L-Net) Web Pages and Related Presentations

    NASA Technical Reports Server (NTRS)

    Gary, J. Patrick

    2005-01-01

    This presentation discusses the advances in Networking Technology combining the Global Lambda Integrated Facility (GLIF) cooperation with the National Lambda Rail (NLR) implementation. It also focuses on New NASA science needing Gigbit per second networks (Gbps) with coordinated Earth Observing Program, hurricane predictions, global aerosols, remote viewing and manipulation of large Earth Science Data Sets, integration of laser and radar topographic data with land cover data.

  2. Investigation on CWR longitudinal restraint behavior in winter rail break and summer destressing operations.

    DOT National Transportation Integrated Search

    1997-08-01

    This report presents the results of investigations on the rail anchor/fastener effects on rail movement and the resulting rail force distribution in continuous welded rail (CWR) track during rail breaks and destressing operations. Two types of tests ...

  3. 78 FR 65244 - Rail Vehicles Access Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ...-0001] RIN 3014-AA42 Rail Vehicles Access Advisory Committee AGENCY: Architectural and Transportation Barriers Compliance Board. ACTION: Notice of advisory committee meeting. SUMMARY: The Rail Vehicles Access... vehicles that operate on fixed guideway systems (e.g., rapid rail, light rail, commuter rail, intercity...

  4. 49 CFR 210.9 - Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars. 210.9 Section 210.9 Transportation Other Regulations... locomotive, rail car, or consist of a locomotive and rail cars. A locomotive, rail car, or consist of a...

  5. 49 CFR 210.9 - Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars. 210.9 Section 210.9 Transportation Other Regulations... locomotive, rail car, or consist of a locomotive and rail cars. A locomotive, rail car, or consist of a...

  6. 49 CFR 210.9 - Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars. 210.9 Section 210.9 Transportation Other Regulations... locomotive, rail car, or consist of a locomotive and rail cars. A locomotive, rail car, or consist of a...

  7. 49 CFR 210.9 - Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars. 210.9 Section 210.9 Transportation Other Regulations... locomotive, rail car, or consist of a locomotive and rail cars. A locomotive, rail car, or consist of a...

  8. 49 CFR 210.9 - Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Movement of a noise defective locomotive, rail car, or consist of a locomotive and rail cars. 210.9 Section 210.9 Transportation Other Regulations... locomotive, rail car, or consist of a locomotive and rail cars. A locomotive, rail car, or consist of a...

  9. Advanced warning for railroad delays in San Antonio : lessons learned from the Metropolitan Model Deployment Initiative : providing enhanced information to the public

    DOT National Transportation Integrated Search

    This report demonstrates the benefits of deploying and operating an integrated highway/rail system, along with the potential barriers to implementation. In particular, it discusses the lessons learned associated with the Advanced Warning to Avoid Rai...

  10. Real-time and accurate rail wear measurement method and experimental analysis.

    PubMed

    Liu, Zhen; Li, Fengjiao; Huang, Bangkui; Zhang, Guangjun

    2014-08-01

    When a train is running on uneven or curved rails, it generates violent vibrations on the rails. As a result, the light plane of the single-line structured light vision sensor is not vertical, causing errors in rail wear measurements (referred to as vibration errors in this paper). To avoid vibration errors, a novel rail wear measurement method is introduced in this paper, which involves three main steps. First, a multi-line structured light vision sensor (which has at least two linear laser projectors) projects a stripe-shaped light onto the inside of the rail. Second, the central points of the light stripes in the image are extracted quickly, and the three-dimensional profile of the rail is obtained based on the mathematical model of the structured light vision sensor. Then, the obtained rail profile is transformed from the measurement coordinate frame (MCF) to the standard rail coordinate frame (RCF) by taking the three-dimensional profile of the measured rail waist as the datum. Finally, rail wear constraint points are adopted to simplify the location of the rail wear points, and the profile composed of the rail wear points are compared with the standard rail profile in RCF to determine the rail wear. Both real data experiments and simulation experiments show that the vibration errors can be eliminated when the proposed method is used.

  11. KSC-99pp1184

    NASA Image and Video Library

    1999-10-07

    KENNEDY SPACE CENTER, FLA. -- At the Shuttle Landing Facility, the S1 truss, a segment of the International Space Station, is moved away from the Super Guppy that brought it to KSC from Marshall Space Flight Center. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the ISS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communications systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique "fold-away" nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an electric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is being transferred to the Operations and Checkout Building

  12. STS-112 S1 Truss Payload arrives at KSC

    NASA Technical Reports Server (NTRS)

    1999-01-01

    KENNEDY SPACE CENTER, FLA. -- NASA's Super Guppy airplane, with the International Space Station's (ISS) S1 truss aboard, rolls to a stop at KSC's Shuttle Landing Facility. Manufactured by the Boeing Co. in Huntington Beach, Calif., this component of the I SS is the first starboard (right-side) truss segment, whose main job is providing structural support for the orbiting research facility's radiator panels that cool the Space Station's complex power system. The S1 truss segment also will house communicatio ns systems, external experiment positions and other subsystems. Primarily constructed of aluminum, the truss segment is 45 feet long, 15 feet wide and 6 feet tall. When fully outfitted, it will weigh 31,137 pounds. The truss is slated for flight in 2001. The Super Guppy, with its 25-foot diameter fuselage designed to handle oversized loads, is well prepared to transport the truss and other ISS segments. Loading the Guppy is easy because of the unique 'fold-away' nose of the aircraft that opens 110 degrees for cargo loading. A system of rails in the cargo compartment, used with either Guppy pallets or fixtures designed for specific cargo, makes cargo loading simple and efficient. Rollers mounted in the rails allow pallets or fixtures to be moved by an elec tric winch mounted beneath the cargo floor. Automatic hydraulic lock pins in each rail secure the pallet for flight. The truss is to be transferred to the Operations and Checkout Building

  13. 40 CFR 201.13 - Standard for rail car operations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Standard for rail car operations. 201... Interstate Rail Carrier Operations Standards § 201.13 Standard for rail car operations. Effective December 31, 1976, no carrier subject to this regulation shall operate any rail car or combination of rail cars...

  14. 40 CFR 201.13 - Standard for rail car operations.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 26 2013-07-01 2013-07-01 false Standard for rail car operations. 201... Interstate Rail Carrier Operations Standards § 201.13 Standard for rail car operations. Effective December 31, 1976, no carrier subject to this regulation shall operate any rail car or combination of rail cars...

  15. 40 CFR 201.13 - Standard for rail car operations.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 25 2014-07-01 2014-07-01 false Standard for rail car operations. 201... Interstate Rail Carrier Operations Standards § 201.13 Standard for rail car operations. Effective December 31, 1976, no carrier subject to this regulation shall operate any rail car or combination of rail cars...

  16. 40 CFR 201.13 - Standard for rail car operations.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 26 2012-07-01 2011-07-01 true Standard for rail car operations. 201... Interstate Rail Carrier Operations Standards § 201.13 Standard for rail car operations. Effective December 31, 1976, no carrier subject to this regulation shall operate any rail car or combination of rail cars...

  17. 40 CFR 201.13 - Standard for rail car operations.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 25 2011-07-01 2011-07-01 false Standard for rail car operations. 201... Interstate Rail Carrier Operations Standards § 201.13 Standard for rail car operations. Effective December 31, 1976, no carrier subject to this regulation shall operate any rail car or combination of rail cars...

  18. 78 FR 32007 - Environmental Impact Statement for Tulsa-Oklahoma City Passenger Rail Corridor, Oklahoma, Lincoln...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-28

    ... Environmental Policy Act of 1969 (NEPA) for the State of Oklahoma High-Speed Rail Initiative: Tulsa--Oklahoma... South Central High Speed Rail Corridor and is a federally-designated high-speed rail (HSR) corridor...-Speed Rail Initiative: Tulsa--Oklahoma City Passenger Rail Corridor Investment Plan. The proposed route...

  19. Solar panel truss mounting systems and methods

    DOEpatents

    Al-Haddad, Tristan Farris; Cavieres, Andres; Gentry, Russell; Goodman, Joseph; Nolan, Wade; Pitelka, Taylor; Rahimzadeh, Keyan; Brooks, Bradley; Lohr, Joshua; Crooks, Ryan; Porges, Jamie; Rubin, Daniel

    2015-10-20

    An exemplary embodiment of the present invention provides a solar panel truss mounting system comprising a base and a truss assembly coupled to the base. The truss assembly comprises a first panel rail mount, second panel rail mount parallel to the first panel rail mount, base rail mount parallel to the first and second panel rail mounts, and a plurality of support members. A first portion of the plurality of support members extends between the first and second panel rail mounts. A second portion of the plurality of support members extends between the first panel rail mount and the base rail mount. A third portion of the plurality of support members extends between the second panel rail mount and the base rail mount. The system can further comprise a plurality of connectors for coupling a plurality of photovoltaic solar panels to the truss assembly.

  20. Solar panel truss mounting systems and methods

    DOEpatents

    Al-Haddad, Tristan Farris; Cavieres, Andres; Gentry, Russell; Goodman, Joseph; Nolan, Wade; Pitelka, Taylor; Rahimzadeh, Keyan; Brooks, Bradley; Lohr, Joshua; Crooks, Ryan; Porges, Jamie; Rubin, Daniel

    2016-06-28

    An exemplary embodiment of the present invention provides a solar panel truss mounting system comprising a base and a truss assembly coupled to the base. The truss assembly comprises a first panel rail mount, second panel rail mount parallel to the first panel rail mount, base rail mount parallel to the first and second panel rail mounts, and a plurality of support members. A first portion of the plurality of support members extends between the first and second panel rail mounts. A second portion of the plurality of support members extends between the first panel rail mount and the base rail mount. A third portion of the plurality of support members extends between the second panel rail mount and the base rail mount. The system can further comprise a plurality of connectors for coupling a plurality of photovoltaic solar panels to the truss assembly.

  1. Review on Selection and Suitability of Rail Transit Station Design Pertaining to Public Safety

    NASA Astrophysics Data System (ADS)

    Akabal, Farah Mohd; Masirin, Mohd Idrus Haji Mohd; Abidin Akasah, Zainal; Rohani, Munzilah Md

    2017-08-01

    Railway has emerged as a fast, convenient, safe, clean, and low-cost alternative to air and road transportation. Many countries have invested in rail transportation. In America, Europe and Asia, large investments are planned for rail transportation. This is because congestion problems can be reduced with the introduction of rail transportation. Rail transportation involves several components which are important to ensure the smooth and safe delivery of services such as locomotives, rail stations and railway tracks. Rail transit stations are places where trains stop to pick-up and drop-off passengers. Stations are vital for many to enable them to engage in work and social commitments. This paper focuses only on the rail transit station as it is one of the important components in rail transportation. It is also considered as a key public meeting place and space for interactions in a community. The role of rail transit station and the requirements of a good rail transit station are also described in this paper. Steps in selecting the location of rail transit station include the function and facilities in rail transit station are discussed with reference to best practices and handbooks. Selection of the appropriate rail transit station locations may help users indirectly. In addition, this paper will also elucidate on the design considerations for an efficient and effective rail transit station. Design selections for the rail transit station must be balanced between aesthetic value and functional efficiency. The right design selection may help conserve energy, assure and facilitate consumers even thought a rail transit station plays a smaller role in attracting consumers compared to a shopping complex or a residential building. This will contribute towards better and greener building for a green transportation facility. Thus, with this paper it is expected to assist the relevant authority to identify important elements in the selection and determination of suitable rail transit station design for the future. It is also important to ensure the design is appropriate from the selection and suitability perspective as design and operation will assist to facilitate the success of the national rail network and encourage the public to use rail transit system. A conducive and neatly design railway station will not only add to the passenger experience but also, as a supporting facility to the economic, social and environmental benefits of the rail industry.

  2. Modern Methods of Rail Welding

    NASA Astrophysics Data System (ADS)

    Kozyrev, Nikolay A.; Kozyreva, Olga A.; Usoltsev, Aleksander A.; Kryukov, Roman E.; Shevchenko, Roman A.

    2017-10-01

    Existing methods of rail welding, which are enable to get continuous welded rail track, are observed in this article. Analysis of existing welding methods allows considering an issue of continuous rail track in detail. Metallurgical and welding technologies of rail welding and also process technologies reducing aftereffects of temperature exposure are important factors determining the quality and reliability of the continuous rail track. Analysis of the existing methods of rail welding enable to find the research line for solving this problem.

  3. Flexible fuel cell gas manifold system

    DOEpatents

    Cramer, Michael; Shah, Jagdish; Hayes, Richard P.; Kelley, Dana A.

    2005-05-03

    A fuel cell stack manifold system in which a flexible manifold body includes a pan having a central area, sidewall extending outward from the periphery of the central area, and at least one compound fold comprising a central area fold connecting adjacent portions of the central area and extending between opposite sides of the central area, and a sidewall fold connecting adjacent portions of the sidewall. The manifold system further includes a rail assembly for attachment to the manifold body and adapted to receive pins by which dielectric insulators are joined to the manifold assembly.

  4. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  5. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  6. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab must be...

  7. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab must be...

  8. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab must be...

  9. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  10. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  11. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  12. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab must be...

  13. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab must be...

  14. Wear Enhancement of Wheel-Rail Interaction by Ultrasonic Nanocrystalline Surface Modification Technique.

    PubMed

    Chang, Seky; Pyun, Young-Sik; Amanov, Auezhan

    2017-02-16

    In this study, an ultrasonic nanocrystalline surface modification (UNSM) technique was applied to normal and heat-treated rails made of 60 kgK steel to enhance the wear resistance of the wheel-rail interaction. The hardness and compressive residual stress values of the untreated and UNSM-treated rails were measured by the Brinell hardness tester and X-ray diffraction technique, respectively. It was found, according to the measurement results, that the hardness was increased by about 20% and 8%, whereas the compressive residual stress was induced by about 52% and 62% for the UNSM-treated normal and heat-treated rails, respectively. The UNSM-treated normal rail showed a slightly higher hardness than the heat-treated rail. The wear resistance of rails with respect to rotating speed and rolling time was assessed using a rolling contact wear (RCW) tester under dry conditions. The RCW test results revealed that the wear of the UNSM-treated rails was enhanced in comparison with those of the untreated rails. Also, the wear amount of the rails was increased with increasing the rotation speed. The UNSM-treated normal rail exhibited the highest wear resistance with respect to the rotation speed. The wear mechanisms of the rails are also discussed based on microscopic images of the worn out surfaces.

  15. Wear Enhancement of Wheel-Rail Interaction by Ultrasonic Nanocrystalline Surface Modification Technique

    PubMed Central

    Chang, Seky; Pyun, Young-Sik; Amanov, Auezhan

    2017-01-01

    In this study, an ultrasonic nanocrystalline surface modification (UNSM) technique was applied to normal and heat-treated rails made of 60 kgK steel to enhance the wear resistance of the wheel-rail interaction. The hardness and compressive residual stress values of the untreated and UNSM-treated rails were measured by the Brinell hardness tester and X-ray diffraction technique, respectively. It was found, according to the measurement results, that the hardness was increased by about 20% and 8%, whereas the compressive residual stress was induced by about 52% and 62% for the UNSM-treated normal and heat-treated rails, respectively. The UNSM-treated normal rail showed a slightly higher hardness than the heat-treated rail. The wear resistance of rails with respect to rotating speed and rolling time was assessed using a rolling contact wear (RCW) tester under dry conditions. The RCW test results revealed that the wear of the UNSM-treated rails was enhanced in comparison with those of the untreated rails. Also, the wear amount of the rails was increased with increasing the rotation speed. The UNSM-treated normal rail exhibited the highest wear resistance with respect to the rotation speed. The wear mechanisms of the rails are also discussed based on microscopic images of the worn out surfaces. PMID:28772549

  16. Crashworthiness evaluation of light rail vehicle interiors.

    DOT National Transportation Integrated Search

    2011-12-01

    Statistically, light rail transit (LRT) systems have higher injury rates on a perpassengermile basis than heavy rail and commuter rail systems, because in most cities, light rail vehicles (LRVs) operate on city streets. Passenger safety is depe...

  17. National University Rail Transportation Center : Tier 1 : final report.

    DOT National Transportation Integrated Search

    2016-10-17

    This project was a collaborative effort between Michigan Techs Rail Transportation Program (RTP), a member of the National University Rail Center (NURail) and the Michigan Dept of Transportation (MDOT), Office of Rail to advance rail transportatio...

  18. Solar panel truss mounting systems and methods

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

    Al-Haddad, Tristan Farris; Cavieres, Andres; Gentry, Russell

    An exemplary embodiment of the present invention provides a solar panel truss mounting system comprising a base and a truss assembly coupled to the base. The truss assembly comprises a first panel rail mount, second panel rail mount parallel to the first panel rail mount, base rail mount parallel to the first and second panel rail mounts, and a plurality of support members. A first portion of the plurality of support members extends between the first and second panel rail mounts. A second portion of the plurality of support members extends between the first panel rail mount and the basemore » rail mount. A third portion of the plurality of support members extends between the second panel rail mount and the base rail mount. The system can further comprise a plurality of connectors for coupling a plurality of photovoltaic solar panels to the truss assembly.« less

  19. Estimation of rail wear limits based on rail strength investigations

    DOT National Transportation Integrated Search

    1998-12-01

    This report describes analyses performed to estimate limits on rail wear based on strength investigations. Two different failure modes are considered in this report: (1) permanent plastic bending, and (2) rail fracture. Rail bending stresses are calc...

  20. 2000 Montana state rail plan update

    DOT National Transportation Integrated Search

    2000-01-01

    This 2000 Montana Rail Plan Update is a comprehensive update of the State Rail Plan. The purpose of this update is to review the State's role in rail planning, retain eligibility for Local Rail Freight Assistance (LRFA) funding, update the descriptio...

  1. 49 CFR 37.83 - Remanufacture of rail vehicles and purchase or lease of remanufactured rail vehicles by public...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... lease of remanufactured rail vehicles by public entities operating rapid or light rail systems. 37.83... operating rapid or light rail systems. (a) This section applies to any public entity operating a rapid or... operates a rapid or light rail system any segment of which is included on the National Register of Historic...

  2. 49 CFR 37.83 - Remanufacture of rail vehicles and purchase or lease of remanufactured rail vehicles by public...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... lease of remanufactured rail vehicles by public entities operating rapid or light rail systems. 37.83... operating rapid or light rail systems. (a) This section applies to any public entity operating a rapid or... operates a rapid or light rail system any segment of which is included on the National Register of Historic...

  3. 49 CFR 37.83 - Remanufacture of rail vehicles and purchase or lease of remanufactured rail vehicles by public...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... lease of remanufactured rail vehicles by public entities operating rapid or light rail systems. 37.83... operating rapid or light rail systems. (a) This section applies to any public entity operating a rapid or... operates a rapid or light rail system any segment of which is included on the National Register of Historic...

  4. 49 CFR 37.83 - Remanufacture of rail vehicles and purchase or lease of remanufactured rail vehicles by public...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... lease of remanufactured rail vehicles by public entities operating rapid or light rail systems. 37.83... operating rapid or light rail systems. (a) This section applies to any public entity operating a rapid or... operates a rapid or light rail system any segment of which is included on the National Register of Historic...

  5. 49 CFR 37.83 - Remanufacture of rail vehicles and purchase or lease of remanufactured rail vehicles by public...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... lease of remanufactured rail vehicles by public entities operating rapid or light rail systems. 37.83... operating rapid or light rail systems. (a) This section applies to any public entity operating a rapid or... operates a rapid or light rail system any segment of which is included on the National Register of Historic...

  6. Multi-point contact of the high-speed vehicle-turnout system dynamics

    NASA Astrophysics Data System (ADS)

    Ren, Zunsong

    2013-05-01

    The wheel-rail contact problems, such as the number, location and the track of contact patches, are very important for optimizing the spatial structure of the rails and lowering the vehicle-turnout system dynamics. However, the above problems are not well solved currently because of having the difficulties in how to determine the multi-contact, to preciously present the changeable profiles of the rails and to establish an accurate spatial turnout system dynamics model. Based on a high-speed vehicle-turnout coupled model in which the track is modeled as flexible with rails and sleepers represented by beams, the line tracing extreme point method is introduced to investigate the wheel-rail multiple contact conditions and the key sections of the blade rail, longer nose rail, shorter rail in the switch and nose rail area are discretized to represent the varying profiles of rails in the turnout. The dynamic interaction between the vehicle and turnout is simulated for cases of the vehicle divergently passing the turnout and the multi-point contact is obtained. The tracks of the contact patches on the top of the rails are presented and the wheel-rail impact forces are offered in comparison with the contact patches transference on the rails. The numerical simulation results indicate that the length of two-point contact occurrence of a worn wheel profile and rails is longer than that of the new wheel profile and rails; The two-point contact definitely occurs in the switch and crossing area. Generally, three-point contact doesn't occur for the new rail profile, which is testified by the wheel-rails interpolation distance and the first order derivative function of the tracing line extreme points. The presented research is not only helpful to optimize the structure of the turnout, but also useful to lower the dynamics of the high speed vehicle-turnout system.

  7. Movements of radio-marked California Ridgway's rails during monitoring surveys: Implications for population monitoring

    USGS Publications Warehouse

    Bui, Thuy-Vy D.; Takekawa, John Y.; Overton, Cory T.; Schultz, Emily R.; Hull, Joshua M.; Casazza, Michael L.

    2015-01-01

    The California Ridgway's rail Rallus obsoletus obsoletus (hereafter California rail) is a secretive marsh bird endemic to tidal marshes in the San Francisco Bay (hereafter bay) of California. The California rail has undergone significant range contraction and population declines due to a variety of factors, including predation and the degradation and loss of habitat. Call-count surveys, which include call playbacks, based on the standardized North American marsh bird monitoring protocol have been conducted throughout the bay since 2005 to monitor population size and distribution of the California rail. However, call-count surveys are difficult to evaluate for efficacy or accuracy. To measure the accuracy of call-count surveys and investigate whether radio-marked California rails moved in response to call-count surveys, we compared locations of radio-marked California rails collected at frequent intervals (15 min) to California rail detections recorded during call-count surveys conducted over the same time periods. Overall, 60% of radio-marked California rails within 200 m of observers were not detected during call-count surveys. Movements of radio-marked California rails showed no directional bias (P = 0.92) irrespective of whether or not playbacks of five marsh bird species (including the California rail) were broadcast from listening stations. Our findings suggest that playbacks of rail vocalizations do not consistently influence California rail movements during surveys. However, call-count surveys may underestimate California rail presence; therefore, caution should be used when relating raw numbers of call-count detections to population abundance.

  8. Understanding transit ridership demand for a multi-destination, multimodal transit network in an American metropolitan area : lessons for increasing choice ridership while maintaining transit dependent ridership.

    DOT National Transportation Integrated Search

    2012-01-01

    This study examines the factors underlying transit demand in the multi-destination, integrated bus and rail transit network for Atlanta, Georgia. Atlanta provides an opportunity to explore the consequences of a multi-destination transit network for b...

  9. Evaluating Opportunities to Enhance Hoosier State Train Ridership through a Survey of Riders’ Opinions and an Assessment of Access to the Line

    DOT National Transportation Integrated Search

    2017-12-01

    Passenger rail is an integral part of intercity transportation networks, especially in areas where residents do not have access to a car or there are not any other options for intercity travel. The Hoosier State Train (HST) line connects five station...

  10. Modernization of NASA's Johnson Space Center Chamber: A Payload Transport Rail System to Support Cryogenic Vacuum Optical Testing of the James Webb Space Telescope (JWST)

    NASA Technical Reports Server (NTRS)

    Garcia, Sam; Homan, Jonathan; Speed, John

    2016-01-01

    NASA is the mission lead for the James Webb Space Telescope (JWST), the next of the "Great Observatories", scheduled for launch in 2018. It is directly responsible for the integration and test (I&T) program that will culminate in an end-to-end cryo vacuum optical test of the flight telescope and instrument module in Chamber A at NASA Johnson Space Center. Historic Chamber A is the largest thermal vacuum chamber at Johnson Space Center and one of the largest space simulation chambers in the world. Chamber A has undergone a major modernization effort to support the deep cryogenic, vacuum and cleanliness requirements for testing the JWST. This paper describe the challenges of developing, integrating and modifying new payload rails capable of transporting payloads within the thermal vacuum chamber up to 65,000 pounds. Ambient and Cryogenic Operations required to configure for testing will be explained. Lastly review historical payload configurations stretching from the Apollo program era to current James Webb Space Telescope testing.

  11. Integrated system for single leg walking

    NASA Astrophysics Data System (ADS)

    Simmons, Reid; Krotkov, Eric; Roston, Gerry

    1990-07-01

    The Carnegie Mellon University Planetary Rover project is developing a six-legged walking robot capable of autonomously navigating, exploring, and acquiring samples in rugged, unknown environments. This report describes an integrated software system capable of navigating a single leg of the robot over rugged terrain. The leg, based on an early design of the Ambler Planetary Rover, is suspended below a carriage that slides along rails. To walk, the system creates an elevation map of the terrain from laser scanner images, plans an appropriate foothold based on terrain and geometric constraints, weaves the leg through the terrain to position it above the foothold, contacts the terrain with the foot, and applies force enough to advance the carriage along the rails. Walking both forward and backward, the system has traversed hundreds of meters of rugged terrain including obstacles too tall to step over, trenches too deep to step in, closely spaced obstacles, and sand hills. The implemented system consists of a number of task-specific processes (two for planning, two for perception, one for real-time control) and a central control process that directs the flow of communication between processes.

  12. Rail-to-rail differential input amplification stage with main and surrogate differential pairs

    DOEpatents

    Britton, Jr., Charles Lanier; Smith, Stephen Fulton

    2007-03-06

    An operational amplifier input stage provides a symmetrical rail-to-rail input common-mode voltage without turning off either pair of complementary differential input transistors. Secondary, or surrogate, transistor pairs assume the function of the complementary differential transistors. The circuit also maintains essentially constant transconductance, constant slew rate, and constant signal-path supply current as it provides rail-to-rail operation.

  13. Developing course lecture notes on high-speed rail.

    DOT National Transportation Integrated Search

    2017-07-15

    1. Introduction a. World-wide Development of High-Speed Rail (Japan, Europe, China) b. High-speed Rail in the U.S. 2. High-Speed Rail Infrastructure a. Geometric Design of High Speed Rail i. Horizontal Curve ii. Vertical Curve iii. Grade and Turnout ...

  14. Assessment of Rail Seat Abrasion Patterns and Environment

    DOT National Transportation Integrated Search

    2012-05-01

    Rail seat abrasion (RSA) of concrete ties is manifested by the loss of material under the rail seat area and, in extreme cases, results in loss of rail clip holding power, reverse rail cant, and gauge widening. RSA was measured in several curves on t...

  15. 78 FR 59316 - Rail Vehicles Access Advisory Committee Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ...-0001] RIN 3014-AA42 Rail Vehicles Access Advisory Committee Meetings AGENCY: Architectural and... Vehicles Access Advisory Committee (Committee) will hold its first meeting. We, the Architectural and... transportation vehicles that operate on fixed guideway systems (e.g., rapid rail, light rail, commuter rail...

  16. Field homogeneity improvement of maglev NdFeB magnetic rails from joints.

    PubMed

    Li, Y J; Dai, Q; Deng, C Y; Sun, R X; Zheng, J; Chen, Z; Sun, Y; Wang, H; Yuan, Z D; Fang, C; Deng, Z G

    2016-01-01

    An ideal magnetic rail should provide a homogeneous magnetic field along the longitudinal direction to guarantee the reliable friction-free operation of high temperature superconducting (HTS) maglev vehicles. But in reality, magnetic field inhomogeneity may occur due to lots of reasons; the joint gap is the most direct one. Joint gaps inevitably exist between adjacent segments and influence the longitudinal magnetic field homogeneity above the rail since any magnetic rails are consisting of many permanent magnet segments. To improve the running performance of maglev systems, two new rail joints are proposed based on the normal rail joint, which are named as mitered rail joint and overlapped rail joint. It is found that the overlapped rail joint has a better effect to provide a competitive homogeneous magnetic field. And the further structure optimization has been done to ensure maglev vehicle operation as stable as possible when passing through those joint gaps. The results show that the overlapped rail joint with optimal parameters can significantly reduce the magnetic field inhomogeneity comparing with the other two rail joints. In addition, an appropriate gap was suggested when balancing the thermal expansion of magnets and homogenous magnetic field, which is considered valuable references for the future design of the magnetic rails.

  17. Development of Public Rail Track Transport in Nord-Western Area of Bratislava

    NASA Astrophysics Data System (ADS)

    Koštial, Matej; Schlosser, Tibor; Schlosser, Peter

    2017-10-01

    The article deals with the development plans and possibilities of the Bratislava north-west expansion direction. Its focus is on the sites in the Lamačská Brána area - Bory and CENTROP - which with their size of approximately 817 hectares are owned by two major developers. The article describes variants of possible rail transport system extension, as it is classified as the cordial system of public transport by the Bratislava urban planning documentation. The traffic service proposal deals with the new traffic infrastructure on given future and realised locations and generates input for the traffic planning itself, which will define the build intensity restriction using the traffic model. Particular variants of the rail transport in given area are proposed to be the primary tool for future area development possibility. Along with the urban tram with narrow gauge of 1000 mm defined in urban planning documentation, the area service is considered by the introduced standard gauge (1435 mm) tram-train track connected to the international railway link. This track is intended to be a part of the integrated suburban public transport system aiming to access the satellite town Stupava inside the Bratislava city agglomeration.

  18. Short-term forecasting of urban rail transit ridership based on ARIMA and wavelet decomposition

    NASA Astrophysics Data System (ADS)

    Wang, Xuemei; Zhang, Ning; Chen, Ying; Zhang, Yunlong

    2018-05-01

    Due to different functions and land use types, there are significant differences in ridership patterns among different urban rail transit stations. Considering the characteristics of different ridership and coping with the uncertainty, periodical and stochastic natures of short-term passenger flow, and this paper proposes a novel hybrid methodology that combines the autoregressive integrated moving average (ARIMA) model and wavelet decomposition, which has strong strengths in signal processing, to short-term ridership forecasting. The seasonal ARIMA is used to represent the relatively stable and regular ridership patterns while the wavelet decomposition is used to capture the stochastic or sometimes drastic changing characteristics of ridership patterns. The inclusion of wavelet decomposition and reconstruction provides the hybrid model with a unique strength in capturing sudden change in ridership patterns associated with certain rail stations. The case study is carried out by analyzing real ridership data of Metro Line 1 in Nanjing, China. The experimental results indicate that the hybrid method is superior to the individual ARIMA model for all ridership patterns, but particularly advantageous in predicting ridership at stations often associated with sudden pattern changes due to special events.

  19. Application of Template Matching for Improving Classification of Urban Railroad Point Clouds

    PubMed Central

    Arastounia, Mostafa; Oude Elberink, Sander

    2016-01-01

    This study develops an integrated data-driven and model-driven approach (template matching) that clusters the urban railroad point clouds into three classes of rail track, contact cable, and catenary cable. The employed dataset covers 630 m of the Dutch urban railroad corridors in which there are four rail tracks, two contact cables, and two catenary cables. The dataset includes only geometrical information (three dimensional (3D) coordinates of the points) with no intensity data and no RGB data. The obtained results indicate that all objects of interest are successfully classified at the object level with no false positives and no false negatives. The results also show that an average 97.3% precision and an average 97.7% accuracy at the point cloud level are achieved. The high precision and high accuracy of the rail track classification (both greater than 96%) at the point cloud level stems from the great impact of the employed template matching method on excluding the false positives. The cables also achieve quite high average precision (96.8%) and accuracy (98.4%) due to their high sampling and isolated position in the railroad corridor. PMID:27973452

  20. Intercity passenger rail : assessing the benefits of increased federal funding for Amtrak and high-speed passenger rail systems

    DOT National Transportation Integrated Search

    2001-03-21

    The Rail Passenger Service Act of 1970 created Amtrak to provide intercity passenger rail service. Like other major national intercity passenger rail systems in the world, Amtrak has received substantial government support-nearly $24 billion for capi...

  1. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  2. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  3. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  4. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  5. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  6. 76 FR 77716 - Alternate Passenger Rail Service Pilot Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-14

    ... program that permits a rail carrier or rail carriers that own infrastructure over which Amtrak operates... develops a pilot program that permits a rail carrier or rail carriers that own infrastructure over which... the infrastructure as described in Sec. 269.7 of this final rule. In addition, such information...

  7. Simulation of rail yard emissions transport to the near-source environment

    EPA Science Inventory

    Rail yards are critical nodes in the freight transportation network and locations of clustered emission sources. When people reside in close proximity to an active rail yard, the near-field effect of rail yard emissions is of concern. Field characterization of near-rail yard ai...

  8. 46 CFR 169.327 - Deck rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.327 Deck rails. (a) All rails or lifelines must be at least 30 inches high... through bolted or welded to the deck. (b) Rails or lifelines must consist of evenly spaced courses. The...

  9. 46 CFR 169.327 - Deck rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.327 Deck rails. (a) All rails or lifelines must be at least 30 inches high... through bolted or welded to the deck. (b) Rails or lifelines must consist of evenly spaced courses. The...

  10. 46 CFR 169.327 - Deck rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Deck rails. 169.327 Section 169.327 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.327 Deck rails. (a) All rails or lifelines must be at least 30 inches high...

  11. 46 CFR 169.327 - Deck rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Deck rails. 169.327 Section 169.327 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.327 Deck rails. (a) All rails or lifelines must be at least 30 inches high...

  12. 76 FR 22747 - RailAmerica, Inc., Palm Beach Holdings, Inc., RailAmerica Transportation Corp., RailTex, Inc...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    ...., Palm Beach Holdings, Inc., RailAmerica Transportation Corp., RailTex, Inc., Fortress Investment Group, LLC, and RR Acquisition Holding, LLC--Continuance in Control Exemption-- Conecuh Valley Railway, LLC...), Fortress Investment Group, LLC (Fortress), and RR Acquisition Holding, LLC (RR Acquisition) (collectively...

  13. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  14. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  15. 46 CFR 108.221 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Storm rails. 108.221 Section 108.221 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Rails § 108.221 Storm rails. Each unit must have a storm rail in the following...

  16. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  17. 46 CFR 108.221 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Storm rails. 108.221 Section 108.221 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Rails § 108.221 Storm rails. Each unit must have a storm rail in the following...

  18. 46 CFR 108.221 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Storm rails. 108.221 Section 108.221 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Rails § 108.221 Storm rails. Each unit must have a storm rail in the following...

  19. 46 CFR 108.221 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Storm rails. 108.221 Section 108.221 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Rails § 108.221 Storm rails. Each unit must have a storm rail in the following...

  20. 46 CFR 127.320 - Storm rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Storm rails. 127.320 Section 127.320 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS CONSTRUCTION AND ARRANGEMENTS Rails and Guards § 127.320 Storm rails. Suitable storm rails must be installed in each passageway and at...

  1. 46 CFR 127.320 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Storm rails. 127.320 Section 127.320 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS CONSTRUCTION AND ARRANGEMENTS Rails and Guards § 127.320 Storm rails. Suitable storm rails must be installed in each passageway and at...

  2. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  3. 46 CFR 127.320 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Storm rails. 127.320 Section 127.320 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS CONSTRUCTION AND ARRANGEMENTS Rails and Guards § 127.320 Storm rails. Suitable storm rails must be installed in each passageway and at...

  4. 46 CFR 127.320 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Storm rails. 127.320 Section 127.320 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS CONSTRUCTION AND ARRANGEMENTS Rails and Guards § 127.320 Storm rails. Suitable storm rails must be installed in each passageway and at...

  5. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  6. 46 CFR 108.221 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Storm rails. 108.221 Section 108.221 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) A-MOBILE OFFSHORE DRILLING UNITS DESIGN AND EQUIPMENT Construction and Arrangement Rails § 108.221 Storm rails. Each unit must have a storm rail in the following...

  7. 46 CFR 127.320 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Storm rails. 127.320 Section 127.320 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS CONSTRUCTION AND ARRANGEMENTS Rails and Guards § 127.320 Storm rails. Suitable storm rails must be installed in each passageway and at...

  8. 75 FR 51331 - Draft Tier II Environmental Impact Statement: Southeast High Speed Rail Corridor-Richmond, VA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-19

    ... Carolina Department of Transportation Rail Division (NCDOT) and the Virginia Department of Rail and Public... Raleigh,'' in the subject heading; or Ms. Christine Fix, Department of Rail & Public Transportation, 600... Department of Rail and Public Transportation Office at 600 East Main Street, Suite 2102, Richmond, VA; and...

  9. 49 CFR 174.59 - Marking and placarding of rail cars.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 2 2012-10-01 2012-10-01 false Marking and placarding of rail cars. 174.59... RAIL General Handling and Loading Requirements § 174.59 Marking and placarding of rail cars. No person may transport a rail car carrying hazardous materials unless it is marked and placarded as required by...

  10. 49 CFR 174.59 - Marking and placarding of rail cars.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 2 2011-10-01 2011-10-01 false Marking and placarding of rail cars. 174.59... RAIL General Handling and Loading Requirements § 174.59 Marking and placarding of rail cars. No person may transport a rail car carrying hazardous materials unless it is marked and placarded as required by...

  11. 49 CFR 174.59 - Marking and placarding of rail cars.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 2 2014-10-01 2014-10-01 false Marking and placarding of rail cars. 174.59... RAIL General Handling and Loading Requirements § 174.59 Marking and placarding of rail cars. No person may transport a rail car carrying hazardous materials unless it is marked and placarded as required by...

  12. 49 CFR 174.59 - Marking and placarding of rail cars.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 2 2013-10-01 2013-10-01 false Marking and placarding of rail cars. 174.59... RAIL General Handling and Loading Requirements § 174.59 Marking and placarding of rail cars. No person may transport a rail car carrying hazardous materials unless it is marked and placarded as required by...

  13. 49 CFR 174.59 - Marking and placarding of rail cars.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Marking and placarding of rail cars. 174.59... RAIL General Handling and Loading Requirements § 174.59 Marking and placarding of rail cars. No person may transport a rail car carrying hazardous materials unless it is marked and placarded as required by...

  14. 49 CFR 212.231 - Highway-rail grade crossing inspector.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Highway-rail grade crossing inspector. 212.231... § 212.231 Highway-rail grade crossing inspector. (a) The highway-rail grade crossing inspector is required, at a minimum, to be able to conduct independent inspections of all types of highway-rail grade...

  15. 49 CFR 212.231 - Highway-rail grade crossing inspector.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Highway-rail grade crossing inspector. 212.231... § 212.231 Highway-rail grade crossing inspector. (a) The highway-rail grade crossing inspector is required, at a minimum, to be able to conduct independent inspections of all types of highway-rail grade...

  16. 49 CFR 212.231 - Highway-rail grade crossing inspector.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Highway-rail grade crossing inspector. 212.231... § 212.231 Highway-rail grade crossing inspector. (a) The highway-rail grade crossing inspector is required, at a minimum, to be able to conduct independent inspections of all types of highway-rail grade...

  17. 46 CFR 190.25-5 - Where rails required.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Where rails required. 190.25-5 Section 190.25-5 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS CONSTRUCTION AND ARRANGEMENT Rails and Guards § 190.25-5 Where rails required. (a) All vessels shall have efficient guard rails...

  18. NCHRP report 350 test 3-11 of the modified T8 bridge rail.

    DOT National Transportation Integrated Search

    2009-04-01

    A new flexible bridge rail system, referred to as the T8 rail, was designed as a replacement for the T6 rail in high-speed applications on culverts and thin deck structures. The T8 rail failed a crash test when the breakaway posts failed the thin dec...

  19. 77 FR 54655 - Genesee & Wyoming Inc.-Control-RailAmerica, Inc., et al.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-05

    ... & Wyoming Inc.--Control--RailAmerica, Inc., et al. AGENCY: Surface Transportation Board. ACTION: Decision No... August 6, 2012, by Genesee and Wyoming Inc. (GWI) and RailAmerica, Inc. (RailAmerica). The application seeks Board approval under 49 U.S.C. 11323-11325 of the acquisition of control of RailAmerica, a...

  20. Building a Habitat Conversion Model for San Francisco Bay Wetlands: A Multi-species Approach for Integrating GIS and Field Data

    Treesearch

    Diana Stralberg; Nils Warnock; Nadav Nur; Hildie Spautz; Gary W. Page

    2005-01-01

    More than 80 percent of San Francisco Bay's original tidal wetlands have been altered or displaced, reducing available habitat for a range of tidal marsh-dependent species, including the Federally listed California Clapper Rail (Rallus longirostris obsoletus) and three endemic Song Sparrow (Melospiza melodia) subspecies. In...

  1. Portable modular detection system

    DOEpatents

    Brennan, James S [Rodeo, CA; Singh, Anup [Danville, CA; Throckmorton, Daniel J [Tracy, CA; Stamps, James F [Livermore, CA

    2009-10-13

    Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are modular detection devices and systems having an integrated lock-in amplifier and spatial filter and assay methods using the portable and modular detection devices.

  2. Identification and prioritization of rail squat defects in the field using rail magnetisation technology

    NASA Astrophysics Data System (ADS)

    Kaewunruen, Sakdirat

    2015-04-01

    Inevitably, rail squats and studs are continuing to be a serious problem for railway organisations around the world in the 21st century. They are typically classified as the growth of any cracks that have grown longitudinally through the subsurface and some of the cracks propagating to the bottom of rails transversely, and have branched from initial longitudinal cracks with a depression of rail surface. The horizontal crack, which results in a depression of rail surface, induces increased maintenance level, more frequent monitoring, compromised rail testing (as the crack shields the signal echoes), and possible broken rails. This paper presents field investigations using a magnetised-rail testing device developed by MRX Technologies to identify and prioritise the rail squats. Most of the in situ squats were found on the high rail of the transition (variable-radius curved track), which is associated with rolling contact fatigue (RCF). This investigation highlights the field performance of the MRX's surface crack detection technology in comparison with the traditional ultrasonic method and detailed walking inspection. Visually, it was found in the field that the size of the RCF squats varies from very small to moderate. The predicted crack data were obtained by scanning the magnitised rails. The comparison of the actual crack depths (ultrasonic) and the predicted crack depths (MRX device) shows: • A possible correlation for small RCF/ squat cracks. • Poor interpretation of larger defects and welds. The field assessment also suggests some practical issues required for further development, including the detection of rail spalling, deep transverse crack, welding, and so on.

  3. Power System Implementation and Demonstration at Camp Katuu, Palau

    DTIC Science & Technology

    2011-05-11

    Horizontal Rows 3 Vertical Rows 3 Vertical Rows with Center Walkway 6 Vertical Rows 1 Amount of rail mounting (lf) 1440’ 1800’ 1800’ 1440’ 2 Ease of rail...installation some rail cutting required to clear walkway requires two level rail mounting system requires two level rail mounting system no rail...Maintenance access 21" horizontal & vertical walkway , does not have direct access to all panels Accessible with 15" walkways Direct access to each panel and

  4. 49 CFR 213.352 - Torch cut rail.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Torch cut rail. 213.352 Section 213.352... Torch cut rail. (a) Except as a temporary repair in emergency situations no rail having a torch cut end shall be used. When a rail end with a torch cut is used in emergency situations, train speed over that...

  5. 49 CFR 37.89 - Remanufacture of intercity and commuter rail cars and purchase or lease of remanufactured...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 1 2012-10-01 2012-10-01 false Remanufacture of intercity and commuter rail cars and purchase or lease of remanufactured intercity and commuter rail cars. 37.89 Section 37.89... commuter rail cars and purchase or lease of remanufactured intercity and commuter rail cars. (a) This...

  6. 49 CFR 37.89 - Remanufacture of intercity and commuter rail cars and purchase or lease of remanufactured...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 1 2013-10-01 2013-10-01 false Remanufacture of intercity and commuter rail cars and purchase or lease of remanufactured intercity and commuter rail cars. 37.89 Section 37.89... commuter rail cars and purchase or lease of remanufactured intercity and commuter rail cars. (a) This...

  7. 49 CFR 213.352 - Torch cut rail.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Torch cut rail. 213.352 Section 213.352... Torch cut rail. (a) Except as a temporary repair in emergency situations no rail having a torch cut end shall be used. When a rail end with a torch cut is used in emergency situations, train speed over that...

  8. 78 FR 36017 - MCM Rail Services LLC, d/b/a Baltimore Industrial Railroad-Operation Exemption-Hilco SP Rail, LLC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-14

    ... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35725] MCM Rail Services LLC, d/b/a Baltimore Industrial Railroad-- Operation Exemption--Hilco SP Rail, LLC MCM Rail Services LLC, d/b/a Baltimore Industrial Railroad (MCM), a noncarrier, has filed a verified notice of exemption...

  9. 76 FR 16538 - Solid Waste Rail Transfer Facilities

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-24

    ... circumstances. Upon receiving a land-use-exemption permit issued by the Board, a solid waste rail transfer... new application for a land-use-exemption permit if the rail line associated with the solid waste rail... transportation of solid waste by rail. (2) The Board will not grant a land-use-exemption permit for a solid waste...

  10. Safety assessment of underground vehicles passing over highly resilient curved tracks in the presence of a broken rail

    NASA Astrophysics Data System (ADS)

    Suárez, B.; Rodriguez, P.; Vázquez, M.; Fernández, I.

    2012-01-01

    Vehicle-track interaction for a new resilient slab track designed to reduce noise and vibration levels was analysed, in order to assess the derailment risk on a curved track when encountering a broken rail. Sensitivity of the rail support spacing of the relative position of the rail breakage between two adjacent rail supports and of running speed were analysed for two different elasticities of the rail fastening system. In none of the cases analysed was observed an appreciable difference between either of the elastic systems. As was expected, the most unfavourable situations were those with greater rail support spacing and those with greater distance from the breakage to the nearest rail support, although in none of the simulations performed did a derailment occur when running over the broken rail. When varying the running speed, the most favourable condition was obtained for an intermediate speed, due to the superposition of two antagonistic effects.

  11. a Method for the Positioning and Orientation of Rail-Bound Vehicles in Gnss-Free Environments

    NASA Astrophysics Data System (ADS)

    Hung, R.; King, B. A.; Chen, W.

    2016-06-01

    Mobile Mapping System (MMS) are increasingly applied for spatial data collection to support different fields because of their efficiencies and the levels of detail they can provide. The Position and Orientation System (POS), which is conventionally employed for locating and orienting MMS, allows direct georeferencing of spatial data in real-time. Since the performance of a POS depends on both the Inertial Navigation System (INS) and the Global Navigation Satellite System (GNSS), poor GNSS conditions, such as in long tunnels and underground, introduce the necessity for post-processing. In above-ground railways, mobile mapping technology is employed with high performance sensors for finite usage, which has considerable potential for enhancing railway safety and management in real-time. In contrast, underground railways present a challenge for a conventional POS thus alternative configurations are necessary to maintain data accuracy and alleviate the need for post-processing. This paper introduces a method of rail-bound navigation to replace the role of GNSS for railway applications. The proposed method integrates INS and track alignment data for environment-independent navigation and reduces the demand of post-processing. The principle of rail-bound navigation is presented and its performance is verified by an experiment using a consumer-grade Inertial Measurement Unit (IMU) and a small-scale railway model. The method produced a substantial improvement in position and orientation for a poorly initialised system in centimetre positional accuracy. The potential improvements indicated by, and limitations of rail-bound navigation are also considered for further development in existing railway systems.

  12. The vertical and the longitudinal dynamic responses of the vehicle-track system to squat-type short wavelength irregularity

    NASA Astrophysics Data System (ADS)

    Zhao, Xin; Li, Zili; Dollevoet, Rolf

    2013-12-01

    The squat, a kind of rolling contact fatigue occurring on the rail top, can excite the high-frequency vehicle-track interaction effectively due to its geometric deviations with a typical wavelength of 20-40 mm, leading to the accelerated deterioration of a track. In this work, a validated 3D transient finite element model is employed to calculate in the time domain the vertical and the longitudinal dynamic contact forces between the wheel and the rail caused by squats. The vehicle-track structure and the wheel-rail continua are both considered in order to include all the important eigencharacteristics of the system related to squats. By introducing the rotational and translational movements of the wheel, the transient wheel-rail rolling contact is solved in detail by a 3D frictional contact model integrated. The contact filter effect is considered automatically in the simulations by the finite size of the contact patch. The present work focuses on the influences of the length, width and depth of a light squat on the resulted dynamic contact forces, for which idealised defect models are used. The growth of a squat is also modelled to a certain extent by a series of defects with different dimensions. The results show that the system is mainly excited at two frequencies separately in the vertical and the longitudinal dynamics. Their superposition explains the typical appearance of mature squats. As a squat grows up, the magnitude of the excited vibration at the lower frequency increases faster than the one at the higher frequency.

  13. Prediction of the interaction between a simple moving vehicle and an infinite periodically supported rail - Green's functions approach

    NASA Astrophysics Data System (ADS)

    Mazilu, Traian

    2010-09-01

    This paper herein describes the interaction between a simple moving vehicle and an infinite periodically supported rail, in order to signalise the basic features of the vehicle/track vibration behaviour in general, and wheel/rail vibration, in particular. The rail is modelled as an infinite Timoshenko beam resting on semi-sleepers via three-directional rail pads and ballast. The time-domain analysis was performed applying Green's matrix of the track method. This method allows taking into account the nonlinearities of the wheel/rail contact and the Doppler effect. The numerical analysis is dedicated to the wheel/rail response due to two types of excitation: the steady-state interaction and rail irregularities. The study points out to certain aspects regarding the parametric resonance, the amplitude-modulated vibration due to corrugation and the Doppler effect.

  14. From “Comprehensive Transportation Hub” to “City New Sitting Room”---Overall the design about Jinan East district comprehensive transportation hub

    NASA Astrophysics Data System (ADS)

    Lv, Jie; Guo, Jianmin; Li, Jin

    2017-08-01

    integrated transport hub or high-speed rail station often talked about, often known as the “city portal” and the title of “city window”, so the comprehensive transportation hub or the high-speed rail station of a city is very important to a region or a provincial. At the same time, it reflects that the managers and users of a city only focus on the comprehensive transportation hub of transportation service function and ignore her cities attributes and functions. Jinan east district comprehensive transportation hub in the beginning of design is given a feature that it has to serve both the traffic and city. We are trying to build a new center for Jinan east new town, the window to welcome people, the city hall of hospitality.

  15. 76 FR 4250 - Operating Certain Railroad Tank Cars in Excess of 263,000 Pounds Gross Rail Load; Approval

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ... Railroad Tank Cars in Excess of 263,000 Pounds Gross Rail Load; Approval AGENCY: Federal Railroad... certain railroad tank cars in excess of 263,000 pounds gross rail load. SUMMARY: On May 14, 2010, the... to allow certain rail tank cars, transporting hazardous materials, to exceed the gross weight on rail...

  16. 49 CFR 37.79 - Purchase or lease of new rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... entities operating rapid or light rail systems. 37.79 Section 37.79 Transportation Office of the Secretary... operating rapid or light rail systems. Each public entity operating a rapid or light rail system making a... system shall ensure that the vehicle is readily accessible to and usable by individuals with disabilities...

  17. 49 CFR 37.79 - Purchase or lease of new rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... entities operating rapid or light rail systems. 37.79 Section 37.79 Transportation Office of the Secretary... operating rapid or light rail systems. Each public entity operating a rapid or light rail system making a... system shall ensure that the vehicle is readily accessible to and usable by individuals with disabilities...

  18. 49 CFR 37.79 - Purchase or lease of new rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... entities operating rapid or light rail systems. 37.79 Section 37.79 Transportation Office of the Secretary... operating rapid or light rail systems. Each public entity operating a rapid or light rail system making a... system shall ensure that the vehicle is readily accessible to and usable by individuals with disabilities...

  19. 49 CFR 37.79 - Purchase or lease of new rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... entities operating rapid or light rail systems. 37.79 Section 37.79 Transportation Office of the Secretary... operating rapid or light rail systems. Each public entity operating a rapid or light rail system making a... system shall ensure that the vehicle is readily accessible to and usable by individuals with disabilities...

  20. 49 CFR 37.79 - Purchase or lease of new rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... entities operating rapid or light rail systems. 37.79 Section 37.79 Transportation Office of the Secretary... operating rapid or light rail systems. Each public entity operating a rapid or light rail system making a... system shall ensure that the vehicle is readily accessible to and usable by individuals with disabilities...

  1. Excitation Method of Linear-Motor-Type Rail Brake without Using Power Sources by Dynamic Braking with Zero Electrical Output

    NASA Astrophysics Data System (ADS)

    Sakamoto, Yasuaki; Kashiwagi, Takayuki; Hasegawa, Hitoshi; Sasakawa, Takashi; Fujii, Nobuo

    The eddy current rail brake is a type of braking system used in railway vehicles. Because of problems such as rail heating and problems associated with ensuring that power is supplied when the feeder malfunctions, this braking system has not been used for practical applications in Japan. Therefore, we proposed the use of linear induction motor (LIM) technology in eddy current rail brake systems. The LIM rail brake driven by dynamic braking can reduce rail heating and generate the energy required for self-excitation. In this paper, we present an excitation system and control method for the LIM rail brake driven by “dynamic braking with zero electrical output”. The proposed system is based on the concept that the LIM rail brake can be energized without using excitation power sources such as a feeder circuit and that high reliability can be realized by providing an independent excitation system. We have studied this system and conducted verification tests using a prototype LIM rail brake on a roller rig. The results show that the system performance is adequate for commercializing the proposed system, in which the LIM rail brake is driven without using any excitation power source.

  2. Interaction between moving tandem wheels and an infinite rail with periodic supports - Green's matrices of the track method in stationary reference frame

    NASA Astrophysics Data System (ADS)

    Mazilu, Traian

    2017-08-01

    This paper approaches the issue of the interaction between moving tandem wheels and an infinite periodically supported rail and points out at the basic characteristics in the steady-state interaction behaviour and in the interaction in the presence of the rail random irregularity. The rail is modelled as an infinite Timoshenko beam resting on supports which are discretely modelling the inertia of the sleepers and ballast and also the viscoelastic features of the rail pads, the ballast and the subgrade. Green‧s matrices of the track method in stationary reference frame were applied so as to conduct the time-domain analysis. This method allows to consider the nonlinearities of the wheel/rail contact and the Doppler effect. The study highlights certain aspects regarding the influence of the wheel base on the wheels/rail contact forces, particularly at the parametric resonance, due to the coincidence between the wheel/rail natural frequency and the passing frequency and also when the rail surface exhibits random irregularity. It has been shown that the wheel/rail dynamic behaviour is less intense when the wheel base equals integer multiple of the sleeper bay.

  3. Modelling the side impact of carbon fibre tubes

    NASA Astrophysics Data System (ADS)

    Sudharsan, Ms R.; Rolfe, B. F., Dr; Hodgson, P. D., Prof

    2010-06-01

    Metallic tubes have been extensively studied for their crashworthiness as they closely resemble automotive crash rails. Recently, the demand to improve fuel economy and reduce vehicle emissions has led automobile manufacturers to explore the crash properties of light weight materials such as fibre reinforced polymer composites, metallic foams and sandwich structures in order to use them as crash barriers. This paper discusses the response of carbon fibre reinforced polymer (CFRP) tubes and their failure mechanisms during side impact. The energy absorption of CFRP tubes is compared to similar Aluminium tubes. The response of the CFRP tubes during impact was modelled using Abaqus finite element software with a composite fabric material model. The material inputs were given based on standard tension and compression test results and the in-plane damage was defined based on cyclic shear tests. The failure modes and energy absorption observed during the tests were well represented by the finite element model.

  4. A framework for risk assessment and decision-making strategies in dangerous good transportation.

    PubMed

    Fabiano, B; Currò, F; Palazzi, E; Pastorino, R

    2002-07-01

    The risk from dangerous goods transport by road and strategies for selecting road load/routes are faced in this paper, by developing an original site-oriented framework of general applicability at local level. A realistic evaluation of the frequency must take into account on one side inherent factors (e.g. tunnels, rail bridges, bend radii, slope, characteristics of neighborhood, etc.) on the other side factors correlated to the traffic conditions (e.g. dangerous goods trucks, etc.). Field data were collected on the selected highway, by systematic investigation, providing input data for a database reporting tendencies and intrinsic parameter/site-oriented statistics. The developed technique was applied to a pilot area, considering both the individual risk and societal risk and making reference to flammable and explosive scenarios. In this way, a risk assessment, sensitive to route features and population exposed, is proposed, so that the overall uncertainties in risk analysis can be lowered.

  5. FY 1998 Proposed Rail Improvement Program Supplement

    DOT National Transportation Integrated Search

    1997-01-01

    This FY 1998 Proposed Rail Improvement Program Supplement contains those rail plan amendments which have been published subsequent to the FY 1997 Proposed Rail Improvement program supplement. This document also contains the benefit/cost methodology u...

  6. Indiana rail plan

    DOT National Transportation Integrated Search

    2009-07-08

    The 2009 Indiana Rail Plan was developed as part of the Indiana Multimodal Freight and Mobility Plan to direct the State of Indianas future freight and passenger rail policy, provide a framework to guide future decisions regarding rail system inve...

  7. Preliminary national rail plan.

    DOT National Transportation Integrated Search

    2009-10-15

    The Passenger Rail Investment and Improvement Act of 2008 (PRIIA) directed the Administrator of the Federal Railroad Administration (FRA) to develop a Preliminary National Rail Plan (PNRP or Preliminary Plan) to address the rail needs of the Nation. ...

  8. Excitation of Surface Electromagnetic Waves on Railroad Rail

    DOT National Transportation Integrated Search

    1978-03-31

    UMTA's Office of Rail Technology research programs aim to improve urban rail transportation systems safety. This rail-transit research study attempts to develop an onboard, separate and independent obstacle-detection system--Surface Electromagnetic W...

  9. Li experiments at the tokamak T-11 M in field of steady state PFC investigations

    NASA Astrophysics Data System (ADS)

    Mirnov, S. V.; Lazarev, V. B.

    2011-08-01

    The renewable plasma facing components (PFCs) of steady state tokamak-reactor can be created in framework of Lithium emitter-collector concept, which suggests Li-loop development close the Li-PFC and plasma periphery. It should ensure: Li-emission from PFC into the plasma, plasma periphery cooling by non-coronal Li radiation, Li ions collection before their loss on the wall and Li return into emitter. The subjects of the last T-11 M investigations were the Lithium collection by limiters and Lithium removal from the wall during tokamak conditioning. The Lithium behavior was studied with witness samples and mobile graphite probe. It was shown that Li-deposit on the sides of rail Li-limiter (collector) is proportional to the Li-emission from the Li-limiter (emitter). Lithium deposit on the ion-drift side of Li-limiter is up to 2-3 times more than on the electron-side. The efficiency of Li-collection by T-11 M limiters can be 60 ± 20% of total Lithium emission from Li-limiter during plasma discharges.

  10. Transportation, social and financial impacts of light and commuter rail.

    DOT National Transportation Integrated Search

    2009-09-01

    While transportation impacts are often masked by heavy growth in corridor traffic and latent travel demand, : modeling enables measuring the real transportation impacts of rail projects. Rail transit is both safe and : environmentally friendly. Rail ...

  11. 49 CFR 213.135 - Switches.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... point to the stock rail. Broken or cracked switch point rails will be subject to the requirements of... of the stock rail. (d) The heel of each switch rail shall be secure and the bolts in each heel shall...

  12. 49 CFR 213.135 - Switches.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... point to the stock rail. Broken or cracked switch point rails will be subject to the requirements of... of the stock rail. (d) The heel of each switch rail shall be secure and the bolts in each heel shall...

  13. Potential scenarios of concern for high speed rail operations

    DOT National Transportation Integrated Search

    2011-03-16

    Currently, multiple operating authorities are proposing the : introduction of high-speed rail service in the United States. : While high-speed rail service shares a number of basic : principles with conventional-speed rail service, the operational : ...

  14. Review of Rail Behavior Under Wheel/Rail Impact Loading

    DOT National Transportation Integrated Search

    1986-04-01

    The report discusses several studies involving factors that significantly affect rail life, particularly wheel impact loads. Parameters that characterize the effect of wheel impact loads on rail behavior are examined in terms of system variables such...

  15. Analysis of Lateral Rail Restraint.

    DOT National Transportation Integrated Search

    1983-09-01

    This report deals with the analysis of lateral rail strength using the results of experimental investigations and a nonlinear rail response model. Part of the analysis involves the parametric study of the influence of track parameters on lateral rail...

  16. Rail base corrosion and cracking prevention

    DOT National Transportation Integrated Search

    2014-07-01

    Rail base corrosion combined with fatigue or damage can significantly reduce rail life. Studies were done to examine the relative contribution of damage, corrosion, and fatigue on rail life. The combined effects can be separated into constituent fact...

  17. Study on service performance of 880 MPa-grade and 980 MPa-grade rail steels

    NASA Astrophysics Data System (ADS)

    Zhu, M.; Xu, G.; Zhou, J. H.; Wang, R. M.; Gan, X. L.

    2017-09-01

    With the rapid development of economy in China, the requirement for railway passenger and cargo transportation becomes higher and higher. Increasing speed and developing heavy-haul transportation can effectively improve the transportation capacity of railway. The requirement for rail steels with higher ability of abrasion resistance becomes urgent. Two kinds of rails, i.e., 880 MPa-grade and 980 MPa-grade rail steels, were laid on cargo line with 500 m short radius curve. The service performances of the tested steels were continuously tracked and analyzed during operation of total 22.5 million tons loads. Macro morphology, light band width, surface hardness and profile of rails were investigated. The results show that the performance of 980 MPa-grade rail steel is superior to that of 880 MPa-grade rail steel at same circumstance. Therefore, 980 MPa-grade rail should be selected in the cargo line with small radius curve.

  18. Testing of the fracture resistance of rails

    NASA Astrophysics Data System (ADS)

    Swiderski, Zdzislaw

    Various grades of rail steel as well as whole rail sections were subjected to fracture resistance tests according to the unified method. It was found that heat treatment of rails increased fracture resistance by 50 percent. However, residual stresses also had a substantial effect. Apparent durability values N(sub c) from the Wilson formula have been derived. The influence of residual stresses on rail durability is stated.

  19. 77 FR 12182 - Safety Standard for Portable Bed Rails: Final Rule

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ... of ASTM F2085- 10a, comply with the following: (i) 1.4.1 Foam and inflatable bed rails need meet only...--portable bed rail constructed primarily of nonrigid materials such as fabric or foam. 3.1.11 inflatable bed..., inflatable bed rail, are terms that are now incorporated as non-rigid bed rail under new section 3.1.12 in...

  20. 49 CFR 37.81 - Purchase or lease of used rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... entities operating rapid or light rail systems. 37.81 Section 37.81 Transportation Office of the Secretary... operating rapid or light rail systems. (a) Except as provided elsewhere in this section, each public entity operating a rapid or light rail system which, after August 25, 1990, purchases or leases a used rapid or...

  1. 49 CFR 37.81 - Purchase or lease of used rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... entities operating rapid or light rail systems. 37.81 Section 37.81 Transportation Office of the Secretary... operating rapid or light rail systems. (a) Except as provided elsewhere in this section, each public entity operating a rapid or light rail system which, after August 25, 1990, purchases or leases a used rapid or...

  2. 49 CFR 37.81 - Purchase or lease of used rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... entities operating rapid or light rail systems. 37.81 Section 37.81 Transportation Office of the Secretary... operating rapid or light rail systems. (a) Except as provided elsewhere in this section, each public entity operating a rapid or light rail system which, after August 25, 1990, purchases or leases a used rapid or...

  3. 49 CFR 37.81 - Purchase or lease of used rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... entities operating rapid or light rail systems. 37.81 Section 37.81 Transportation Office of the Secretary... operating rapid or light rail systems. (a) Except as provided elsewhere in this section, each public entity operating a rapid or light rail system which, after August 25, 1990, purchases or leases a used rapid or...

  4. 49 CFR 37.81 - Purchase or lease of used rail vehicles by public entities operating rapid or light rail systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... entities operating rapid or light rail systems. 37.81 Section 37.81 Transportation Office of the Secretary... operating rapid or light rail systems. (a) Except as provided elsewhere in this section, each public entity operating a rapid or light rail system which, after August 25, 1990, purchases or leases a used rapid or...

  5. Rail and Motor Outloading Capability Study. Fort Devens, Massachusetts,

    DTIC Science & Technology

    1980-03-01

    AD-AI 765 MILITARY TRAFFIC MANAGEMENT COMMAND TRANSPORTATION EN-ETC FIO 15/5 RAIL AND MOTOR OUTLOADING CAPABILITY STUDY. FORT DEVENS . MASSAC-ETC(U...REPORT TE 79-4-54 RAIL AND MOTOR OUTLOADING CAPABILITY STUDY FORT DEVENS , MASSACHUSETTS Accession Far DTIC TAB March 1980 _stribution/ Av_alability...INTRODUCTION 6.. . .. . . II. ANALYSIS OF FORT DEVENS ’ RAIL OUTLOADING FACILITIES ... . . .. . .9 A. General .9.. B. Rail Facility Description

  6. Evaluating the attractiveness of a new light rail extension: Testing simple change and displacement change hypotheses

    PubMed Central

    Brown, Barbara B.; Tribby, Calvin P.; Tharp, Doug; Flick, Kristi; Miller, Harvey J.; Smith, Ken R.; Jensen, Wyatt

    2015-01-01

    Many communities in the United States have been adding new light rail to bus-predominant public transit systems. However, there is disagreement as to whether opening light rail lines attracts new ridership or merely draws ridership from existing transit users. We study a new light rail line in Salt Lake City, Utah, USA, which is part of a complete street redevelopment. We utilize a pre-test post-test control group quasi-experimental design to test two different measures of ridership change. The first measure is calculated from stops along the light rail route; the second assumes that nearby bus stops might be displaced by the rail and calculates ridership change with those stops included as baseline. Both the simple measure (transit use changes on the complete street light rail corridor) and the “displacement” measure (transit use changes in the one-quarter mile catchment areas around new light rail stops) showed significant (p < .01) and substantial (677%) increases in transit passengers compared to pre-light rail bus users. In particular, the displacement analysis discredits a common challenge that when a new light rail line opens, most passengers are simply former bus riders whose routes were canceled in favor of light rail. The study suggests that light rail services can attract additional ridership to public transit systems. In addition, although pre-post control-group designs require time and effort, this project underscores the benefits of such quasi-experimental designs in terms of the strength of the inferences that can be drawn about the impacts of new transit infrastructure and services. PMID:26543329

  7. Evaluating the attractiveness of a new light rail extension: Testing simple change and displacement change hypotheses.

    PubMed

    Werner, Carol M; Brown, Barbara B; Tribby, Calvin P; Tharp, Doug; Flick, Kristi; Miller, Harvey J; Smith, Ken R; Jensen, Wyatt

    2016-01-01

    Many communities in the United States have been adding new light rail to bus-predominant public transit systems. However, there is disagreement as to whether opening light rail lines attracts new ridership or merely draws ridership from existing transit users. We study a new light rail line in Salt Lake City, Utah, USA, which is part of a complete street redevelopment. We utilize a pre-test post-test control group quasi-experimental design to test two different measures of ridership change. The first measure is calculated from stops along the light rail route; the second assumes that nearby bus stops might be displaced by the rail and calculates ridership change with those stops included as baseline. Both the simple measure (transit use changes on the complete street light rail corridor) and the "displacement" measure (transit use changes in the one-quarter mile catchment areas around new light rail stops) showed significant ( p < .01) and substantial (677%) increases in transit passengers compared to pre-light rail bus users. In particular, the displacement analysis discredits a common challenge that when a new light rail line opens, most passengers are simply former bus riders whose routes were canceled in favor of light rail. The study suggests that light rail services can attract additional ridership to public transit systems. In addition, although pre-post control-group designs require time and effort, this project underscores the benefits of such quasi-experimental designs in terms of the strength of the inferences that can be drawn about the impacts of new transit infrastructure and services.

  8. Investigation into the vibration of metro bogies induced by rail corrugation

    NASA Astrophysics Data System (ADS)

    Ling, Liang; Li, Wei; Foo, Elbert; Wu, Lei; Wen, Zefeng; Jin, Xuesong

    2017-01-01

    The current research of rail corrugation mainly focuses on the mechanisms of its formation and development. Compared with the root causes and development mechanisms, the wheel-rail impacts, the fatigue failure of vehicle-track parts, and the loss of ride comfort due to rail corrugation should also be taken into account. However, the influences of rail corrugation on vehicle and track vibration, and failure of vehicle and track structural parts are barely discussed in the literature. This paper presents an experimental and numerical investigation of the structural vibration of metro bogies caused by rail corrugation. Extensive experiments are conducted to investigate the effects of short-pitch rail corrugation on the vibration accelerations of metro bogies. A dynamic model of a metro vehicle coupled with a concrete track is established to study the influence of rail corrugation on the structural vibration of metro bogies. The field test results indicate that the short-pitch rail corrugation generates strong vibrations on the axle-boxes and the bogie frames, therefore, accelerates the fatigue failure of the bogie components. The numerical results show that short-pitch rail corrugation may largely reduce the fatigue life of the coil spring, and improving the damping value of the primary vertical dampers is likely to reduce the strong vibration induced by short-pitch rail corrugation. This research systematically studies the effect of rail corrugation on the vibration of metro bogies and proposes some remedies for mitigating strong vibrations of metro bogies and reducing the incidence of failure in primary coil springs, which would be helpful in developing new metro bogies and track maintenance procedures.

  9. Wheel/Rail Noise and Vibration Control

    DOT National Transportation Integrated Search

    1974-05-01

    Reported here are the interim results of a program under the UMTA Urban Rail Supporting Technology Program to develop a basic understanding of urban transit wheel/rail noise generation for application to the evaluation and improvement of wheel/rail n...

  10. 76 FR 19914 - Safety Standard for Portable Bed Rails: Notice of Proposed Rulemaking

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-11

    ... constructed primarily of nonrigid materials, such as fabric or foam. An ``inflatable bed rail'' is defined as..., such as fabric or foam; Inflatable bed rail is a portable bed rail constructed primarily of nonrigid...

  11. 49 CFR 213.119 - Continuous welded rail (CWR); plan contents.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... following items: (i) Loose, bent, or missing joint bolts; (ii) Rail end batter or mismatch that contributes... amount and length of rail end batter or ramp on each rail end; the amount of tread mismatch; the vertical...

  12. 49 CFR 213.119 - Continuous welded rail (CWR); plan contents.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... following items: (i) Loose, bent, or missing joint bolts; (ii) Rail end batter or mismatch that contributes... amount and length of rail end batter or ramp on each rail end; the amount of tread mismatch; the vertical...

  13. Analysis of Rail Transit Vehicle Dynamic Curving Performance

    DOT National Transportation Integrated Search

    1984-06-01

    An analytical model is developed for determining the dynamic curving performance of rail transit vehicles. The dynamic wheel/rail interaction forces, vehicle suspension and body motions and track displacement are computed, as well as wheel and rail w...

  14. Control of rolling contact fatigue on premium rails in revenue service.

    DOT National Transportation Integrated Search

    2014-11-01

    Effective rail maintenance strategies are : essential for controlling rolling contact fatigue : (RCF) and reducing wear of rails under heavy : axle load (HAL) operations. In an effort to : optimize rail maintenance strategies in revenue : service, Tr...

  15. Another look at the question of density and rail transit.

    DOT National Transportation Integrated Search

    2011-07-01

    Long community discussions about rail often include whether a citys spatial distribution of : housing, employment and other trip generators is conducive to supporting rail transit. A citys : decision to construct rail transit is based on an arr...

  16. A desire named streetcar : fantasy and fact in rail transit planning

    DOT National Transportation Integrated Search

    1992-06-30

    The forecasts that led local officials in eight U.S. cities to advocate rail transit projects over competing, less capital-intensive options grossly overestimated rail transit ridership and underestimated rail construction costs and operating expense...

  17. Undergraduate Certificate in Rail Transportation/Engineering.

    DOT National Transportation Integrated Search

    2016-05-05

    A shift in the U.S. transportation environment has led to a revival in rail transport, especially in : freight rail1. In the meantime, an aging rail employee demographic presents a severe threat to : sufficient level of individuals equipped to handle...

  18. Hazardous Materials Flow by Rail

    DOT National Transportation Integrated Search

    1990-03-01

    The report presents a quantitative overview of the movement of hazardous materials by rail in the United States. The data used is a hazardous materials rail waybill sample developed at TSC from the 1983 Rail Waybill Sample. The report examines (1) th...

  19. A comparative assessment of PM2.5 exposures in light-rail, subway, freeway, and surface street environments in Los Angeles and estimated lung cancer risk.

    PubMed

    Kam, Winnie; Delfino, Ralph J; Schauer, James J; Sioutas, C

    2013-01-01

    According to the U.S. Census Bureau, 570000+ commuters in Los Angeles travel for over 60 minutes to work. Studies have shown that a substantial portion of particulate matter (PM) exposure can occur during this commute. This study represents the integration of the results from five commute environments in Los Angeles. Personal PM exposures are discussed for the: (1) METRO gold line, a ground-level light-rail route, (2) METRO red line, a subway line, (3) the 110, a high volume freeway with low heavy-duty vehicle (HDV) fraction, (4) the 710, a major corridor for HDVs from the Port of Los Angeles, and (5) Wilshire/Sunset Boulevards, major surface streets. Chemical analysis including total and water-soluble metals and trace elements, elemental and organic carbon (EC/OC), and polycyclic aromatic hydrocarbons (PAHs) was performed. The focus of this study is to compare the composition and estimated lung cancer risk of PM2.5 (dp < 2.5 μm) for the five differential commute environments. Metals associated with stainless steel, notably Fe, Cr, and Mn, were elevated for the red line (subway), most likely from abrasion processes between the rail and brakes; elements associated with tire and brake wear and oil additives (Ca, Ti, Sn, Sb, and Pb) were elevated on roadways. Elemental concentrations on the gold line (light-rail) were the lowest. For water-solubility, metals observed on the red line (subway) were the least soluble. PAHs are primarily derived from vehicular emissions. Overall, the 710 exhibited high levels of PAHs (3.0 ng m−3), most likely due to its high volume of HDVs, while the red and gold lines exhibited low PAH concentrations (0.6 and 0.8 ng m−3 for red and gold lines, respectively). Lastly, lung cancer risk due to inhalation of PAHs was calculated based on a commuter lifetime (45 years for 2 hours per workday). Results showed that lung cancer risk for the 710 is 3.8 and 4.5 times higher than the light-rail (gold line) and subway (red line), respectively. With low levels of both metal and PAH pollutants, our results indicate that commuting on the light-rail (gold line) may have potential health benefits when compared to driving on freeways and busy roadways.

  20. 49 CFR 37.42 - Service in an Integrated Setting to Passengers at Intercity, Commuter, and High-Speed Rail...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... plates, ramps or other appropriate devices; (4) Mini-high platforms, with multiple mini-high platforms or... chooses a means of meeting the performance standard other than using car-borne lifts, it must perform a comparison of the costs (capital, operating, and life-cycle costs) of car-borne lifts and the means chosen by...

  1. 49 CFR 37.42 - Service in an Integrated Setting to Passengers at Intercity, Commuter, and High-Speed Rail...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... plates, ramps or other appropriate devices; (4) Mini-high platforms, with multiple mini-high platforms or... chooses a means of meeting the performance standard other than using car-borne lifts, it must perform a comparison of the costs (capital, operating, and life-cycle costs) of car-borne lifts and the means chosen by...

  2. 49 CFR 37.42 - Service in an integrated setting to passengers at intercity, commuter, and high-speed rail...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... plates, ramps or other appropriate devices; (4) Mini-high platforms, with multiple mini-high platforms or... chooses a means of meeting the performance standard other than using car-borne lifts, it must perform a comparison of the costs (capital, operating, and life-cycle costs) of car-borne lifts and the means chosen by...

  3. 49 CFR 37.42 - Service in an Integrated Setting to Passengers at Intercity, Commuter, and High-Speed Rail...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... plates, ramps or other appropriate devices; (4) Mini-high platforms, with multiple mini-high platforms or... chooses a means of meeting the performance standard other than using car-borne lifts, it must perform a comparison of the costs (capital, operating, and life-cycle costs) of car-borne lifts and the means chosen by...

  4. The commuter rail circulator network design problem : formulation, solution methods, and applications

    DOT National Transportation Integrated Search

    2007-08-01

    Commuter rail is increasingly popular as a means to introduce rail transportation to metropolitan transportation systems. The long-term benefits of commuter rail include the addition of capacity to the transportation system, providing a quality commu...

  5. On-line high-speed rail defect detection.

    DOT National Transportation Integrated Search

    2004-10-01

    This report presents the results of phase 2 of the project On-line high-speed rail defect detection aimed at improving the reliability and the speed of current defect detection in rails. Ultrasonic guided waves, traveling in the rail running di...

  6. Analyses of rail chill effect

    DOT National Transportation Integrated Search

    1998-06-01

    The principles of heat transfer are applied to analyze the so-called "rail chill" effect, which refers to hear loss by conduction from a hot rail vehicle wheel through the contact area into a cold rail, the wheel having been heated by friction brakin...

  7. Home school student visit and introduction to rail transportation and engineering.

    DOT National Transportation Integrated Search

    2016-06-22

    This project consisted of hosting local Champaign-Urbana, Illinois home school students for a visit to : the Rail Transportation and Engineering Center (RailTEC) at the University of Illinois at Urbana- : Champaign (UIUC). Beyond visiting RailTEC, st...

  8. 49 CFR 236.711 - Bond, rail joint.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Bond, rail joint. 236.711 Section 236.711 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Bond, rail joint. A metallic connection attached to adjoining rails to insure electrical conductivity. ...

  9. 49 CFR 236.752 - Joint, rail, insulated.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Joint, rail, insulated. 236.752 Section 236.752 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Joint, rail, insulated. A joint in which electrical insulation is provided between adjoining rails. ...

  10. Rail accelerator research at Lewis Research Center

    NASA Technical Reports Server (NTRS)

    Kerslake, W. R.; Cybyk, B. Z.

    1982-01-01

    A rail accelerator was chosen for study as an electromagnetic space propulsion device because of its simplicity and existing technology base. The results of a mission feasibility study using a large rail accelerator for direct launch of ton-size payloads from the Earth's surface to space, and the results of initial tests with a small, laboratory rail accelerator are presented. The laboratory rail accelerator has a bore of 3 by 3 mm and has accelerated 60 mg projectiles to velocities of 300 to 1000 m/s. Rail materials of Cu, W, and Mo were tested for efficiency and erosion rate.

  11. A Big Data Analysis Approach for Rail Failure Risk Assessment.

    PubMed

    Jamshidi, Ali; Faghih-Roohi, Shahrzad; Hajizadeh, Siamak; Núñez, Alfredo; Babuska, Robert; Dollevoet, Rolf; Li, Zili; De Schutter, Bart

    2017-08-01

    Railway infrastructure monitoring is a vital task to ensure rail transportation safety. A rail failure could result in not only a considerable impact on train delays and maintenance costs, but also on safety of passengers. In this article, the aim is to assess the risk of a rail failure by analyzing a type of rail surface defect called squats that are detected automatically among the huge number of records from video cameras. We propose an image processing approach for automatic detection of squats, especially severe types that are prone to rail breaks. We measure the visual length of the squats and use them to model the failure risk. For the assessment of the rail failure risk, we estimate the probability of rail failure based on the growth of squats. Moreover, we perform severity and crack growth analyses to consider the impact of rail traffic loads on defects in three different growth scenarios. The failure risk estimations are provided for several samples of squats with different crack growth lengths on a busy rail track of the Dutch railway network. The results illustrate the practicality and efficiency of the proposed approach. © 2017 The Authors Risk Analysis published by Wiley Periodicals, Inc. on behalf of Society for Risk Analysis.

  12. Effects of anchoring and arc structure on the control authority of a rail plasma actuator

    NASA Astrophysics Data System (ADS)

    Choi, Young-Joon; Gray, Miles; Sirohi, Jayant; Raja, Laxminarayan L.

    2017-09-01

    Experiments were conducted on a rail plasma actuator (RailPAc) with different electrode cross sections (rails or rods) to assess methods to improve the actuation authority, defined as the impulse generated for a given electrical input. The arc was characterized with electrical measurements and high-speed images, while impulse measurements quantified the actuation authority. A RailPAc power supply capable of delivering  ∼1 kA of current at  ∼100 V was connected to rod electrodes (free-floating with circular cross-section) and rail electrodes (flush-mounted in a flat plate with rectangular cross-section). High-speed images show that the rail electrodes cause the arc to anchor itself to the anode electrode and transit in discrete jumps, while rod electrodes permit the arc to transit smoothly without anchoring. The impulse measurements reveal that the anchoring reduces the actuation authority by  ∼21% compared to a smooth transit, and the effect of anchoring can be suppressed by reducing the gap between the rails to 2 mm. The study further demonstrates that if a smooth transit is achieved, the control authority can be increased with a larger gap and larger arc current. In conclusion, the actuation authority of a RailPAc can be maximized by carefully choosing a gap width that prevents anchoring. Further study is warranted to increase the RailPAc actuation authority by introducing multiple turns of wires beneath the RailPAc to augment the induced magnetic field.

  13. A method for improved accuracy in three dimensions for determining wheel/rail contact points

    NASA Astrophysics Data System (ADS)

    Yang, Xinwen; Gu, Shaojie; Zhou, Shunhua; Zhou, Yu; Lian, Songliang

    2015-11-01

    Searching for the contact points between wheels and rails is important because these points represent the points of exerted contact forces. In order to obtain an accurate contact point and an in-depth description of the wheel/rail contact behaviours on a curved track or in a turnout, a method with improved accuracy in three dimensions is proposed to determine the contact points and the contact patches between the wheel and the rail when considering the effect of the yaw angle and the roll angle on the motion of the wheel set. The proposed method, with no need of the curve fitting of the wheel and rail profiles, can accurately, directly, and comprehensively determine the contact interface distances between the wheel and the rail. The range iteration algorithm is used to improve the computation efficiency and reduce the calculation required. The present computation method is applied for the analysis of the contact of rails of CHINA (CHN) 75 kg/m and wheel sets of wearing type tread of China's freight cars. In addition, it can be proved that the results of the proposed method are consistent with that of Kalker's program CONTACT, and the maximum deviation from the wheel/rail contact patch area of this two methods is approximately 5%. The proposed method, can also be used to investigate static wheel/rail contact. Some wheel/rail contact points and contact patch distributions are discussed and assessed, wheel and rail non-worn and worn profiles included.

  14. Midwest regional rail system : a transportation network for the 21 century : executive report

    DOT National Transportation Integrated Search

    2000-02-01

    The Midwest Regional Rail Initiative is an ongoing effort to develop an improved and expanded passenger rail system in the Midwest. Since 1996, the Midwest Regional Rail Initiative (MWRRI) advanced from a series of service concepts, including increas...

  15. 36 CFR Appendix F to Part 1191 - Modifications Adopted by the Department of Transportation

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... negotiate steps may have to travel compared to the general public. Modification to 406 of Appendix D 406... shall be 8 inches (205 mm) minimum above top of rail. In light rail, commuter rail, and intercity rail...

  16. Wheel/Rail Noise Control : A Critical Evaluation

    DOT National Transportation Integrated Search

    1981-01-01

    Noise and vibration are the major sources of environmental impact from urban rail transit operations, and is a concern for both new and existing systems. One of the primary sources of noise on rail transit systems is wheel/rail noise, or, the noise e...

  17. Wheel/Rail Noise and Vibration : Volume 1. Mechanics of Wheel Rail Noise Generation.

    DOT National Transportation Integrated Search

    1975-05-01

    The final reports are reported of a project to develop a basic understanding of urban transit wheel/rail noise control measures. Analytical models of impedance, response, radiation efficiency, and directivity of wheels and rails are presented and com...

  18. 75 FR 17462 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ... decision may be purchased by contacting the office of Public Assistance, Governmental Affairs, and...-2)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the second quarter 2010 Rail Cost...

  19. Rail transportation : Federal Railroad Administration's new approach to rail safety

    DOT National Transportation Integrated Search

    1997-07-01

    In 1980, the Congress passed the Staggers Rail Act, which fostered substantial changes in the railroad industry. By 1995, fewer large freight railroads accounted for most of the industry's revenue and train miles. At the same time, these freight rail...

  20. In-Service Performance and Costs of Methods to Control Urban Rail System Noise

    DOT National Transportation Integrated Search

    1979-12-01

    This study evaluates the acoustic and economic effectiveness of five methods of controlling wheel/rail noise and vibration on urban rail transit systems, namely: rail grinding, wheel truing, resilient wheels, ring-damped wheels, and welded vs. jointe...

  1. A compact ball screw based electromagnetic energy harvester for railroad application

    NASA Astrophysics Data System (ADS)

    Pan, Yu; Lin, Teng; Liu, Cheng; Yu, Jie; Zuo, Jianyong; Zuo, Lei

    2018-03-01

    To enable the smart technologies, such as the positive train controls, rail damage detection and track health monitoring on the railroad side, the electricity is required and in needed. In this paper, we proposed a novel ball-screw based electromagnetic energy harvester for railway track with mechanical-motion-rectifier (MMR) mechanism, to harvest the energy that usually dissipated and wasted during train induced track vibration. Ball screw based design reduces backlash during motion transmission, and MMR nonlinear characteristics with one way clutches makes the harvester convert the bi-direction track vibration into a generator's unidirectional rotation, which improves the transmission reliability and increases the energy harvesting efficiency. A systematic model combining train-rail-harvester was established to analyze the dynamic characteristic of the proposed railway energy, and lab and in-field tests were carried out to experimentally characterize the proposed energy harvester. In lab bench test showed the proposed harvester reached a 70% mechanical efficiency with a high sensitivity to the environment vibration. In filed test showed that a peak 7.8W phase power was achieved when a two marshaling type A metro train passed by with a 30 km/h.

  2. Energy Absorbing Seat System for an Agricultural Aircraft

    NASA Technical Reports Server (NTRS)

    Kellas, Sotiris; Jones, Lisa E. (Technical Monitor)

    2002-01-01

    A task was initiated to improve the energy absorption capability of an existing aircraft seat through cost-effective retrofitting, while keeping seat-weight increase to a minimum. This task was undertaken as an extension of NASA ongoing safety research and commitment to general aviation customer needs. Only vertical crash scenarios have been considered in this task which required the energy absorbing system to protect the seat occupant in a range of crash speeds up to 31 ft/sec. It was anticipated that, the forward and/or side crash accelerations could be attenuated with the aid of airbags, the technology of which is currently available in automobiles and military helicopters. Steps which were followed include, preliminary crush load determination, conceptual design of cost effective energy absorbers, fabrication and testing (static and dynamic) of energy absorbers, system analysis, design and fabrication of dummy seat/rail assembly, dynamic testing of dummy seat/rail assembly, and finally, testing of actual modified seat system with a dummy occupant. A total of ten full scale tests have been performed including three of the actual aircraft seat. Results from full-scale tests indicated that occupant loads were attenuated successfully to survivable levels.

  3. How They (Should Have) Built the Pyramids

    NASA Astrophysics Data System (ADS)

    Gallagher, Gregory; West, Joseph; Waters, Kevin

    2014-03-01

    A novel ``polygon method'' is proposed for moving large stone blocks. The method is implemented by the attachment of rods of analytically chosen radii to the block by means of rope. The chosen rods are placed on each side of the square-prism block in order to transform the square prism into a prism of higher order polygon, i.e. octagon, dodecagon etc. Experimental results are presented and compared to other methods proposed by the authors, including a dragging method and a rail method which includes the idea of dragging the block on rails made from arbitrarily chosen rod-shaped ``tracks,'' and to independent work by another group which utilized wooden attachments providing a cylindrical shape. It is found that the polygon method when used on small scale stone blocks across level open ground has an equivalent of a coefficient of friction order of 0.1. For full scale pyramid blocks, the wooden ``rods'' would need to be of order 30 cm in diameter, certainly within reason, given the diameter of wooden masts used on ships in that region during the relevant time period in Egypt. This project also inspired a ``spin-off'' project in which the behavior or rolling polygons is investigated and preliminary data is presented.

  4. Proceedings : Seminar on the use of Composite Third Rail in Electrified Transit and Commuter Rail Systems

    DOT National Transportation Integrated Search

    1978-11-01

    The seminar was organized at the request of UMTA to disseminate accurate information on, and experience with, composite (aluminum and steel) third, or contact rail, in wayside power distribution systems of electrified urban rail properties. The semin...

  5. Wheel/Rail Noise and Vibration : Volume 2. Applications to Control of Wheel/Rail Noise.

    DOT National Transportation Integrated Search

    1975-05-01

    The final reports are reported of a project to develop a basic understanding of urban transit wheel/rail noise control measures. Analytical models of impedance, response, radiation efficiency, and directivity of wheels and rails are presented and com...

  6. 76 FR 59483 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-26

    ... the decision may be purchased by contacting the Office of Public Assistance, Governmental Affairs, and...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the fourth quarter 2011 Rail Cost Adjustment...

  7. Effect of Wheel/Rail Loads on Concrete Tie Stresses and Rail Rollover.

    DOT National Transportation Integrated Search

    2011-09-21

    As a result of vertical and lateral wheel/rail forces, high contact stresses can develop at the interface between the rail base and tie. Under certain conditions, these stresses can exceed the strength of the concrete tie and result in deterioration ...

  8. 77 FR 68722 - National Highway-Rail Crossing Inventory Reporting Requirements

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ...-0007, Notice No. 2] RIN 2130-AC26 National Highway-Rail Crossing Inventory Reporting Requirements... Notice of Proposed Rulemaking (NPRM) on National Highway-Rail Crossing Inventory Reporting Requirements... National Highway-Rail Crossing Inventory (Crossing Inventory). This notice announces the scheduling of the...

  9. 77 FR 48591 - State Rail Plan Guidance

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ... Plan Guidance AGENCY: Federal Railroad Administration (FRA), Department of Transportation (DOT). ACTION: Request for Public Comment on Proposed State Rail Plan Guidance. SUMMARY: FRA is publishing this notice to... plans. State rail plans are documents that are required under Section 303 of the Passenger Rail...

  10. Data Analysis and Instrumentation Requirements for Evaluating Rail Joints and Rail Fasteners in Urban Track

    DOT National Transportation Integrated Search

    1975-02-01

    Rail fasteners for concrete ties and direct fixation and bolted rail joints have been identified as key components for improving track performance. However, the lack of statistical load data limits the development of improved design criteria and eval...

  11. Pedestrian/bicyclist warning devices and signs at highway-rail and pathway-rail grade crossings.

    DOT National Transportation Integrated Search

    2013-04-01

    Federal reporting shows a relatively constant number of pedestrian and bicycle fatalities at highway-rail and : pathway-rail grade crossings over the past 10 years. This is in contrast to a marked decrease in trainvehicle : collisions at highway-r...

  12. 49 CFR 1580.101 - Rail security coordinator.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... the corporate level. (d) Each freight railroad carrier, rail hazardous materials shipper, and rail hazardous materials receiver required to have an RSC must provide to TSA the names, title, phone number(s... any of this information changes. (e) Each freight railroad carrier, rail hazardous materials shipper...

  13. 49 CFR 1580.101 - Rail security coordinator.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... the corporate level. (d) Each freight railroad carrier, rail hazardous materials shipper, and rail hazardous materials receiver required to have an RSC must provide to TSA the names, title, phone number(s... any of this information changes. (e) Each freight railroad carrier, rail hazardous materials shipper...

  14. 49 CFR 1580.101 - Rail security coordinator.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... the corporate level. (d) Each freight railroad carrier, rail hazardous materials shipper, and rail hazardous materials receiver required to have an RSC must provide to TSA the names, title, phone number(s... any of this information changes. (e) Each freight railroad carrier, rail hazardous materials shipper...

  15. New Hampshire state rail plan 2001

    DOT National Transportation Integrated Search

    2001-04-01

    This report is the 2001 update to the New Hampshire Statewide Rail Plan, which was last updated in 1991 and amended in 1993. The Rail Plan presents an overview of the current status of the New Hampshire Rail System, who operates it and how it is util...

  16. Natal plumage characters in rails

    USGS Publications Warehouse

    Wetherbee, D.K.; Meanley, B.

    1965-01-01

    The downy young of the Clapper Rail (Rallus longirostris), King Rail (Rallus elegans), and Virginia Rail (Rallus limicola) are described as totally black in all literature examined by us. Wetherbee (Bird-Banding, 32: 141-159, 1961) noted that some neonates of Virginia Rail from Storrs, Connecticut, had patches of white down below the wings. "Neonatal" pertains to the developmental condition or characters at hatching distinct from the much abused term "natal" which in ornithology pertains to the condition or characters from hatching to acquisition of teleoptile plumage. The presence of similar patches of white down was observed by us in the Clapper Rails at Chincoteague, Virginia (Figure 1). An examination of many hundreds of specimens from the ranges of most of the subspecies of Clapper Rails, including the strongly contrasting R. longirostris saturatus from Louisiana, revealed the almost invariable presence of at least 1 and sometimes as many as 30 white neossoptiles in the anterior abdominal regions of the ventral pterylae. Conversely, no King Rail neonate examined by us has shown a white neossoptile.

  17. Vibro-Acoustic Forecasts for STS (Space Transportation System) Launches at V23, Vandenberg AFB: Results Summary and the Payload Preparation Room

    DTIC Science & Technology

    1985-05-08

    Displacement Time Series Forecasts for Channels 2 Through 8 and (b) Channels 9 Through 16 33 17. Sample PSD Plots for ( a ) Levels 99 and 119 East Cell Rail...for Sensors at ( a ) Levels 99 and 119 on the West Cell Rail, (b) Level 69 on the East and West Cell Rail Footings, and (c) Level 99 on the West Cell Rail...17. Sample PSD Plots for ( a ) Levels 99 and 119 East Cell Rail Locations, (b) level 69 Sensors on the East and West Cell Rail Footings, and (c) Level

  18. Control Measurements of Crane Rails Performed by Terrestrial Laser Scanning

    PubMed Central

    Kregar, Klemen; Možina, Jan; Ambrožič, Tomaž; Kogoj, Dušan; Marjetič, Aleš; Štebe, Gašper; Savšek, Simona

    2017-01-01

    This article presents a method for measuring the geometry of crane rails with terrestrial laser scanning (TLS). Two sets of crane rails were divided into segments, their planes were adjusted, and the characteristic rail lines were defined. We used their profiles to define the positional and altitude deviations of the rails, the span and height difference between the two rails, and we also verified that they complied with the Eurocode 3 standard. We tested the method on crane rails at the hydroelectric power plant in Krško and the thermal power plant in Brestanica. We used two scanning techniques: “pure” TLS (Riegel VZ-400) and “hybrid” TLS (Leica MS50) scanning. This article’s original contribution lies in the detailed presentation of the computations used to define the characteristic lines of the rails without using the numeric procedures from existing software packages. We also analysed the influence of segment length and point density on the rail geometry results, and compared the two laser scanning techniques. We also compared the results obtained by terrestrial laser scanning with the results obtained from the classic polar method, which served as a reference point for its precision. PMID:28726755

  19. 75 FR 7426 - Periodic Reporting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-19

    ... change in transportation cost system sampling. The proposal involves distributing rail costs using inter...) sampling, and proposes instead to distribute rail costs using the Inter-BC highway distribution factors. \\1... rail sampling, and to use the TRACS inter-BMC distribtion in place of the Rail distribution key in Cost...

  20. Linear friction welding for constructing and repairing rail for high speed and intercity passenger service rail : final report.

    DOT National Transportation Integrated Search

    2016-08-01

    This project developed a solid-state welding process based on linear friction welding (LFW) technology. While resistance flash welding or : thermite techniques are tried and true methods for joining rails and performing partial rail replacement repai...

  1. 77 FR 37958 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the third quarter 2012 rail cost adjustment...

  2. 75 FR 35877 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... available on our Web site, http://www.stb.dot.gov . Copies of the decision may be purchased by contacting...-3)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the third quarter 2010 rail cost...

  3. 75 FR 58019 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-23

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the fourth quarter 2010 Rail Cost Adjustment...

  4. 75 FR 80895 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the first quarter 2011 Rail Cost Adjustment...

  5. 76 FR 16037 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-22

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the second quarter 2011 Rail Cost Adjustment...

  6. 78 FR 37660 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board approves the third quarter 2013 Rail Cost Adjustment Factor...

  7. 76 FR 37191 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... our Web site, http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the third quarter 2011 Rail Cost Adjustment...

  8. 78 FR 59093 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the fourth quarter 2013 rail cost adjustment factor (RCAF) and cost index filed by the Association of American Railroads. The fourth quarter 2013 RCAF...

  9. 78 FR 17764 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-22

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board, DOT. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the second quarter 2013 Rail Cost Adjustment...

  10. Bridge rail and approach railing for low-volume roads in Iowa : tech transfer summary, March 2010.

    DOT National Transportation Integrated Search

    2010-03-01

    The primary objective of the research summarized below was to describe the state of the practice regarding the nations bridge rails and approach guardrails and to perform a statewide crash analysis involving bridge rails and approach guardrails on...

  11. Pulmonary embolism after long duration rail travel: economy class syndrome or rail coach syndrome.

    PubMed

    Mittal, S K; Chopra, S; Calton, R

    2011-07-01

    Pulmonary embolism after long duration air travel is well described. However it can also occur following a long duration rail or road transport. We present a case of 43 year old male who developed deep venous thrombosis and acute pulmonary embolism after a long rail journey. We propose to call it as rail coach syndrome and stress the need for taking the same preventive measures as recommended for airline passengers.

  12. Transit scheduling: Basic and advanced manuals. Final report

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

    Pine, R.; Niemeyer, J.; Chisholm, R.

    1998-12-01

    This manual will be of interest to new transit schedulers, experienced schedulers, transit planners, operating staff, and others who need to be conversant with the scheduling process. The materials clearly describe all steps in the bus and light rail scheduling process, under TCRP Project A-11, Transit Scheduling: A Manual with Materials, research was undertaken by Transportation Management and Design of Solana Beach, California, to prepare a transit scheduling manual that incorporates modern training techniques for bus and light rail transit scheduling. The manual consists of two sections: a basic treatment and an advanced section. The basic-level section is in anmore » instructional format designed primarily for novice schedulers and other transit staff. The advance section covers more complex scheduling requirements. Each section may be used sequentially or independently and is designed to integrate with agency apprenticeship and on-the-job training.« less

  13. Static stall alleviation using a rail plasma actuator

    NASA Astrophysics Data System (ADS)

    Choi, Young-Joon; Gray, Miles; Sirohi, Jayant; Raja, Laxminarayan L.

    2018-07-01

    An experimental study was conducted to investigate the ability of a rail plasma actuator (RailPAc) to alleviate static stall on an airfoil. The RailPAc device consists of parallel rails flush mounted on the upper surface of a VR-12 airfoil, with a high-current (∼1.3 kA) arc bridging the gap between the rails. A Lorentz force (∼0.3 N lasting  ∼1 ms) generated on the arc propels it along the airfoil chord and transfers momentum to the surrounding flow. Experiments were conducted in a low speed wind tunnel at two different Reynolds numbers ( and ) and various static angles of attack (up to  ∼30°). Particle image velocimetry (PIV) was used to measure the flow over the passive and actuated airfoil, while the airfoil lift was measured using a force balance. The experiments showed that the RailPAc promotes flow reattachment and can suppress static stall over a wide range of angles of attack. Operation of a single RailPAc resulted in  ∼40 improvement in post-stall lift and  ∼4° increase in stall angle compared to a passive airfoil with an unpowered RailPAc. The results provide insight into the actuation mechanism and demonstrate, for the first time, the ability of the RailPAc to alleviate static stall on an airfoil.

  14. Modelling of dynamic contact length in rail grinding process

    NASA Astrophysics Data System (ADS)

    Zhi, Shaodan; Li, Jianyong; Zarembski, A. M.

    2014-09-01

    Rails endure frequent dynamic loads from the passing trains for supporting trains and guiding wheels. The accumulated stress concentrations will cause the plastic deformation of rail towards generating corrugations, contact fatigue cracks and also other defects, resulting in more dangerous status even the derailment risks. So the rail grinding technology has been invented with rotating grinding stones pressed on the rail with defects removal. Such rail grinding works are directed by experiences rather than scientifically guidance, lacking of flexible and scientific operating methods. With grinding control unit holding the grinding stones, the rail grinding process has the characteristics not only the surface grinding but also the running railway vehicles. First of all, it's important to analyze the contact length between the grinding stone and the rail, because the contact length is a critical parameter to measure the grinding capabilities of stones. Moreover, it's needed to build up models of railway vehicle unit bonded with the grinding stone to represent the rail grinding car. Therefore the theoretical model for contact length is developed based on the geometrical analysis. And the calculating models are improved considering the grinding car's dynamic behaviors during the grinding process. Eventually, results are obtained based on the models by taking both the operation parameters and the structure parameters into the calculation, which are suitable for revealing the process of rail grinding by combining the grinding mechanism and the railway vehicle systems.

  15. Investigation of rail irregularity effects on wheel/rail dynamic force in slab track: Comparison of two and three dimensional models

    NASA Astrophysics Data System (ADS)

    Sadeghi, Javad; Khajehdezfuly, Amin; Esmaeili, Morteza; Poorveis, Davood

    2016-07-01

    Rail irregularity is one of the most significant load amplification factors in railway track systems. In this paper, the capability and effectiveness of the two main railway slab tracks modeling techniques in prediction of the influences of rail irregularities on the Wheel/Rail Dynamic Force (WRDF) were investigated. For this purpose, two 2D and 3D numerical models of vehicle/discontinuous slab track interaction were developed. The validation of the numerical models was made by comparing the results of the models with those obtained from comprehensive field tests carried out in this research. The effects of the harmonic and non-harmonic rail irregularities on the WRDF obtained from 3D and 2D models were investigated. The results indicate that the difference between WRDF obtained from 2D and 3D models is negligible when the irregularities on the right and left rails are the same. However, as the difference between irregularities of the right and left rails increases, the results obtained from 2D and 3D models are considerably different. The results indicate that 2D models have limitations in prediction of WRDF; that is, a 3D modeling technique is required to predict WRDF when there is uneven or non-harmonic irregularity with large amplitudes. The size and extent of the influences of rail irregularities on the wheel/rail forces were discussed leading to provide a better understanding of the rail-wheel contact behavior and the required techniques for predicting WRDF.

  16. 76 FR 81011 - Notice of Final Federal Agency Actions on Proposed Light Rail Project in Washington

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-27

    ... on Proposed Light Rail Project in Washington AGENCY: Federal Highway Administration (FHWA... Light Rail Transit Project in King County Washington. These actions grant licenses, permits, and... Light Rail Transit Project, King County, WA. Federal Lead Agency: Federal Transit Administration (FTA...

  17. In-Service Performance and Costs of Methods for Control of Urban Rail System Noise : Experimental Design

    DOT National Transportation Integrated Search

    1976-05-01

    This report presents an experimental design for a project to evaluate four techniques for reducing wheel-rail noise on urban rail transit systems: (a) resilient wheels, (b) damped wheels, (c) wheel truing, and (d) rail griding. The design presents th...

  18. 75 FR 32240 - Draft Tier II Environmental Impact Statement: Southeast High Speed Rail Corridor-Richmond, VA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-07

    ... Rail and Public Transportation (DRPT) are co-lead State agencies. The Environmental Protection Agency... 27699-1553, or SEHSR Comments, Virginia Department of Rail and Public Transportation, 600 East Main... Ms. Christine Fix, Virginia Department of Rail & Public Transportation, 600 East Main Street, Suite...

  19. 78 FR 33393 - Petition Requesting a Ban or Standard on Adult Portable Bed Rails

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... Standard on Adult Portable Bed Rails AGENCY: Consumer Product Safety Commission. ACTION: Notice. SUMMARY... adult portable bed rails pose an unreasonable risk of injury and initiate related rulemaking under... that adult portable bed rails pose an unreasonable risk of injury and initiate related rulemaking under...

  20. 46 CFR 177.900 - Deck rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at... simultaneously. (c) Where space limitations make deck rails impractical for areas designed for crew use only...) high. (4) While engaged in big game angling, the minimum rail height may be reduced to not less than...

  1. 46 CFR 177.900 - Deck rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at... simultaneously. (c) Where space limitations make deck rails impractical for areas designed for crew use only...) high. (4) While engaged in big game angling, the minimum rail height may be reduced to not less than...

  2. 46 CFR 177.900 - Deck rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at... simultaneously. (c) Where space limitations make deck rails impractical for areas designed for crew use only...) high. (4) While engaged in big game angling, the minimum rail height may be reduced to not less than...

  3. 46 CFR 177.900 - Deck rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at... simultaneously. (c) Where space limitations make deck rails impractical for areas designed for crew use only...) high. (4) While engaged in big game angling, the minimum rail height may be reduced to not less than...

  4. 46 CFR 177.900 - Deck rails.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at... simultaneously. (c) Where space limitations make deck rails impractical for areas designed for crew use only...) high. (4) While engaged in big game angling, the minimum rail height may be reduced to not less than...

  5. 30 CFR 56.9102 - Movement of independently operating rail equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Movement of independently operating rail... MINES Loading, Hauling, and Dumping Traffic Safety § 56.9102 Movement of independently operating rail equipment. Movement of two or more pieces of rail equipment operating independently on the same track shall...

  6. 30 CFR 57.9102 - Movement of independently operating rail equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Movement of independently operating rail... NONMETAL MINES Loading, Hauling, and Dumping Traffic Safety § 57.9102 Movement of independently operating rail equipment. Movement of two or more pieces of rail equipment operating independently on the same...

  7. 75 FR 16564 - High-Speed Intercity Passenger Rail (HSIPR) Program

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-01

    ... services to avoid shipping delays. Application forms are available at http://www.fra.dot.gov/Pages/2243..., and 501--Intercity Passenger Rail Service Corridor Capital Assistance (codified at 49 U.S.C. chapter... High Speed Rail Corridors and Intercity Passenger Rail Service.'' This document incorporates interim...

  8. Near-rail yard air quality--assessment through field measurements and computational fluid dynamics modeling

    EPA Science Inventory

    Compared to truck transport, goods movement by rail produces generally lower air pollutant emissions (e.g., particulate matter, carbon dioxide) per ton of freight transported. Emissions associated with rail transport are also confined to rail corridors which may lower the risk of...

  9. Evaluation of intrusion detection technologies for high speed rail grade crossings : final report.

    DOT National Transportation Integrated Search

    2003-12-01

    The rail industry is in the process of developing a prototype system for high speed rail. One of the concerns when using high speed rail is the danger of obstructions on the track. This level of danger is much higher than with traditional railway veh...

  10. 29 CFR 1918.36 - Weather deck rails.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false Weather deck rails. 1918.36 Section 1918.36 Labor... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR LONGSHORING Working Surfaces § 1918.36 Weather deck rails. Removable weather deck rails shall be kept in place except when cargo operations require them to be removed...

  11. 29 CFR 1918.36 - Weather deck rails.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 7 2012-07-01 2012-07-01 false Weather deck rails. 1918.36 Section 1918.36 Labor... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR LONGSHORING Working Surfaces § 1918.36 Weather deck rails. Removable weather deck rails shall be kept in place except when cargo operations require them to be removed...

  12. 29 CFR 1918.36 - Weather deck rails.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 7 2014-07-01 2014-07-01 false Weather deck rails. 1918.36 Section 1918.36 Labor... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR LONGSHORING Working Surfaces § 1918.36 Weather deck rails. Removable weather deck rails shall be kept in place except when cargo operations require them to be removed...

  13. 29 CFR 1918.36 - Weather deck rails.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 7 2013-07-01 2013-07-01 false Weather deck rails. 1918.36 Section 1918.36 Labor... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR LONGSHORING Working Surfaces § 1918.36 Weather deck rails. Removable weather deck rails shall be kept in place except when cargo operations require them to be removed...

  14. 29 CFR 1918.36 - Weather deck rails.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 7 2011-07-01 2011-07-01 false Weather deck rails. 1918.36 Section 1918.36 Labor... (CONTINUED) SAFETY AND HEALTH REGULATIONS FOR LONGSHORING Working Surfaces § 1918.36 Weather deck rails. Removable weather deck rails shall be kept in place except when cargo operations require them to be removed...

  15. 76 FR 80448 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-23

    ...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the first quarter 2012 rail cost adjustment factor (RCAF... decision, which is available on our Web site, http://www.stb.dot.gov . Copies of the decision may be...

  16. 77 FR 58910 - Quarterly Rail Cost Adjustment Factor

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ..., http://www.stb.dot.gov . Copies of the decision may be purchased by contacting the Office of Public...)] Quarterly Rail Cost Adjustment Factor AGENCY: Surface Transportation Board. ACTION: Approval of rail cost adjustment factor. SUMMARY: The Board has approved the fourth quarter 2012 rail cost adjustment factor (RCAF...

  17. 49 CFR 174.82 - General requirements for the handling of placarded rail cars, transport vehicles, freight...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... rail cars, transport vehicles, freight containers, and bulk packages. 174.82 Section 174.82... Placarded Rail Cars, Transport Vehicles and Freight Containers § 174.82 General requirements for the handling of placarded rail cars, transport vehicles, freight containers, and bulk packages. (a) Unless...

  18. 46 CFR 116.920 - Storm rails.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Storm rails. 116.920 Section 116.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150... and Guards § 116.920 Storm rails. Suitable storm rails or hand grabs must be installed where necessary...

  19. 46 CFR 116.920 - Storm rails.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Storm rails. 116.920 Section 116.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150... and Guards § 116.920 Storm rails. Suitable storm rails or hand grabs must be installed where necessary...

  20. 46 CFR 116.920 - Storm rails.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Storm rails. 116.920 Section 116.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150... and Guards § 116.920 Storm rails. Suitable storm rails or hand grabs must be installed where necessary...

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