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Federal Railroad Administration

rosaP Repository & Open Science Access Portal

The Federal Railroad Administration (FRA) promotes safe and environmentally sound rail transportation. The FRA conducts research and development tests to evaluate projects in support of its safety mission and to enhance the railroad system as a national transportation resource. Public education campaigns on highway-rail grade crossing safety and the danger of trespassing on rail property are also administered by FRA. Bookmark this collection https://rosap.ntl.bts.gov/collection_fra or https://doi.org/10.21949/1530835.

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Showing 801 - 820 of 1173 results
  • A Comparative Risk Assessment of Remote Control Locomotive Operations Versus Conventional Yard Switching Operations Research Results
    A Comparative Risk Assessment of Remote Control Locomotive Operations Versus Conventional Yard Switching Operations: Research Results
    Raslear, Thomas ;
    Conklin, John
    2006-01-01 | PDF
    This study involved a comparative risk assessment of U.S. remote control locomotive (RCL) and conventional yard switching operations. First, a hierarchical task analysis provided a description of yard switching tasks. Based on the task analysis, a preliminary hazard analysis and human reliability assessment were performed. For each method of operat ...
  • Development of a Detailed Nonlinear Finite Element Analysis Model of Colliding Trains
    Development of a Detailed Nonlinear Finite Element Analysis Model of Colliding Trains
    Martinez, Eloy
    2005-12-01 | PDF
    A simulation model of a train-to-train collision has been developed using explicit/dynamic finite element analysis (FEA). The ABAQUS/Explicit dynamic finite element code was used. In comparison to other vehicle collision studies, this study is the first in which the interactions of colliding passenger rail equipment have been modeled using detailed ...
  • Evaluation of options for improving Amtraks passenger accountability system
    Evaluation of options for improving Amtrak’s passenger accountability system
    Mauri, Ronald ;
    Mergel, Joseph
    2005-12-01 | PDF
    In investigating the derailment of Amtrak's Auto Train on April 18, 2002, the National Transportation Safety Board (NTSB) reported that an accurate count of persons on the train at the time of the accident was not available at the accident scene. NTSB noted that emergency response would be improved with accurate count data at the accident scene and ...
  • Development of Crush Zones for Passenger Railcars Research Results
    Development of Crush Zones for Passenger Railcars: Research Results
    Martinez, Eloy E.
    2005-12-01 | PDF
    Crash Energy Management (CEM) has been developed as a means to protect occupants in train-to-train collisions. As part of CEM, sacrificial crush zones are designed into unoccupied locations in cars. These crush zones are designed to deform with a lower initial force and increased average force. With such crush zones, energy absorption is shared by ...
  • Investigation of Cracks in Acela Coach Car Brake Discs Test and Analysis Volume I Final Report
    Investigation of Cracks in Acela Coach Car Brake Discs: Test and Analysis, Volume I, Final Report
    Sherrock, Eric T. ;
    Owings, Raymond
    2005-11-30 | PDF
    In April 2005, visual and laboratory tests identified cracks in the spokes of several brake discs on coach cars within Amtrak's Acela trainsets, the high-speed trainsets operating on the Northeast Corridor. Amtrak halted operations of the Acela fleet until an assessment of the cracked spokes could be made. With the support of the Federal Railroad A ...
  • Investigation of Cracks in Acela Coach Car Brake Discs Test and Analysis Volume II Appendices
    Investigation of Cracks in Acela Coach Car Brake Discs: Test and Analysis, Volume II, Appendices
    Sherrock, Eric T. ;
    Owings, Raymond
    2005-11-30 | PDF
    In April 2005, visual and laboratory tests identified cracks in the spokes of several brake discs on coach cars within Amtrak’s Acela trainsets, the high-speed trainsets operating on the Northeast Corridor. Amtrak halted operations of the Acela fleet until an assessment of the cracked spokes could be made. With the support of the Federal Railroad A ...
  • Investigation of the effects of sliding on wheel tread damage
    Investigation of the effects of sliding on wheel tread damage
    Talamini, Brandon ;
    Gordon, Jeff
    2005-11-05 | PDF
    Wheel tread spalling is the main source of damage to wheel treads anda primary cause for wheel removals from service. Severe frictionalheating of the wheel-rail contact patch during sliding causes theformation of martensite, a hard, brittle microstructure. The martensitepatches break away from the more resilient bulk of the wheel treadwhen subjecte ...
  • Crashworthiness requirements for commuter rail passenger seats
    Crashworthiness requirements for commuter rail passenger seats
    Severson, Kristine J. ;
    Tyrell, David C.
    2005-11-05 | PDF
    Occupant experiments using instrumented crash test dummies seated in commuter rail seats have been conducted on board full-scale impact tests of rail cars. The tests have been conducted using both conventional cars and cars modified to incorporate crash energy management (CEM). Test results indicate that an improved commuter seat design could signi ...
  • Fatigue performance of AAR class A railroad wheel steel at ambient and elevated temperatures
    Fatigue performance of AAR class A railroad wheel steel at ambient and elevated temperatures
    McKeighan, P C ;
    McMaster, F J
    2005-11-05 | PDF
    This paper reports on tests to measure the effect of temperature on fatigue performance of railroad wheel steel. Classical stress-life (S-N) curves were developed for AAR Class B wheel steel with specimens removed from the tread areas of an as-forged railcar wheel. The specimen geometry was a standard hourglass fatigue test specimen with a low stre ...
  • Development of a passenger wheel standard
    Development of a passenger wheel standard
    Gordon, Jeff ;
    Stone, D.
    2005-11-05 | PDF
    The American Public Transit Association (APTA) is seeking to develop specifications to ensure that wheels used in passenger applications perform safely under the service conditions to which they are exposed. To this end, an approach has been developed which will address this need at two levels. First, a variant on the Association of American Railro ...
  • Design of a workstation table with improved crashworthiness performance
    Design of a workstation table with improved crashworthiness performance
    Parent, Daniel ;
    Tyrell, David C.
    2005-11-05 | PDF
    Work is currently underway to develop strategies to protect rail passengers seated at workstation tables during a collision or derailment. Investigations have shown that during a collision, these tables can present a hostile secondary impact environment to the occupants. This effort includes the design, fabrication, and testing of an improved works ...
  • A crush zone design for an existing passenger rail cab car
    A crush zone design for an existing passenger rail cab car
    Martinez, Eloy ;
    Tyrell, David
    2005-11-05 | PDF
    A Crash Energy Management (CEM) cab car crush zonedesign has been developed for retrofit onto an existing BuddM1 cab car. This design is to be used in the upcoming fullscaletrain-to-train test of a CEM consist impacting a standingfreight consist of comparable weight. The cab car crush zonedesign is based upon the coach car crush zone design that ha ...
  • Railroad Safety Statistics Annual Report 2004
    Railroad Safety Statistics Annual Report 2004
    United States. Department of Transportation. Federal Railroad Administration
    2005-11-01 | PDF
    This edition of the Railroad Safety Statistics compiles previous safety bulletins prepared by the Federal Railroad Administration (FRA). These include: the Accident/Incident Bulletin; theHighway-Rail Crossing Accident/Incident And Inventory Bulletin; and the Trespasser Bulletin. The consolidation of accident/incident statistics previously contained ...
  • Ground Penetrating Radar for Railroad Track Substructure Evaluation
    Ground Penetrating Radar for Railroad Track Substructure Evaluation
    Hyslip, J. P. ;
    Olhoeft, G. R.
    2005-10-18 | PDF
    This report presents the results of the first three phases of a multiphase project to adapt Ground Penetrating Radar (GPR) to railroads for use in developing useful indices of substructure condition and performance. Included are brief discussions of some basic GPR principles, as well as data processing and modeling techniques that are applicable to ...
  • NonDestructive Evaluation of Railway Track Using Ground Penetrating Radar Research Results
    Non-Destructive Evaluation of Railway Track Using Ground Penetrating Radar [Research Results]
    United States. Department of Transportation. Federal Railroad Administration
    2005-10-01 | PDF
    The Federal Railroad Administration (FRA) Office of Research and Development sponsored a study under the Track and Structures Program for evaluating railway track conditions using ground-penetrating radar (GPR). The track conditions targeted by the GPR research contribute to its overall performance and the safety of railway operations including the ...
  • Railroad Safety Statistics Annual Report 2003
    Railroad Safety Statistics Annual Report 2003
    United States. Department of Transportation. Federal Railroad Administration
    2005-10-01 | PDF
    This edition of the Railroad Safety Statistics compiles previous safety bulletins prepared by the Federal Railroad Administration (FRA). These include: the Accident/Incident Bulletin; the Highway-Rail Crossing Accident/Incident And Inventory Bulletin; and the Trespasser Bulletin. The consolidation of accident/incident statistics previously containe ...
  • Report to Congress Costs and Benefits of Magnetic Levitation
    Report to Congress: Costs and Benefits of Magnetic Levitation
    United States. Department of Transportation. Federal Railroad Administration
    2005-09-01 | PDF
    This report to Congress examines the costs and benefits of magnetic levitation (Maglev) technology as a transportation mode in comparison to other high-speed ground transportation options, particularly incremental and new high-speed rail systems. It provides a comprehensive overview of Maglev technology, including its operational principles, deploy ...
  • Fiberglass Wrapped Tie Performance Evaluation Report
    Fiberglass Wrapped Tie Performance Evaluation Report
    LoPresti, Joe
    2005-08-01 | PDF
    Forty-two fiberglass fabric wrapped, solid-sawn wood ties during 300 million gross tons (MGT) of heavy axle load (HAL) traffic and eight fiberglass fabric wrapped ties with metal cover plates were recently evaluated during 125 MGT of HAL traffic at the Transportation Technology Center in Pueblo, Colorado. This observational test was a followup to W ...
  • Preview information in cab displays for highspeed locomotives
    Preview information in cab displays for high-speed locomotives
    Einhorn, J. ;
    Sheridan, T.
    2005-07-01 | PDF
    This research examined the usefulness of preview information in the control of high-speed trains. Experiments were run on ahuman-in-the-loop locomotive simulator. The primary goal was to examine whether the proposed information-aiding displaysimproved safety and efficiency of train operation over an existing display. Safety was measured by monitori ...
  • Locomotive Crew Egress Research Results 20054
    Locomotive Crew Egress [Research Results] [2005-4]
    Punwani, John
    2005-04-01 | PDF
    The Federal Railroad Administration (FRA) Office of Research and Development initiated a research project to develop and evaluate innovative concepts for locomotive crew egress in the event of a crash that makes the normal means of egress unusable. Locomotive operating crews and rescue workers need improved means of cab egress and access in the eve ...
801 - 820 / 1173