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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 1162 results
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Work Schedules and Sleep Patterns of Railroad Signalmen Research Results
    Work Schedules and Sleep Patterns of Railroad Signalmen [Research Results]
    Raslear, Thomas
    2005-04-01 | PDF
    The Federal Railroad Administration (FRA) Office of Research and Development sponsored a project to study the work schedules and sleep patterns of U.S. railroad signalmen and examined the relationship between these schedules and level of alertness of the individuals working the schedules. This study methodology was a survey of a random sample of cu ...
  • Human Factors Root Cause Analysis of AccidentIncidents Involving Remote Control Locomotive Operations Research Results
    Human Factors Root Cause Analysis of Accident/Incidents Involving Remote Control Locomotive Operations [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development
    2005-04-01 | PDF
    The Federal Railroad Administration (FRA) Office of Research and Development sponsored a project to learn more about human factors root cause analysis (RCA) of six train accidents/incidents - collisions, derailments, and employee injuries - involving remote control locomotive (RCL) operations in U.S. railroad switching yards. Descriptive data from ...
  • Review of severe deformation recommended practice through analyses comparison of two cab car end frame designs
    Review of severe deformation recommended practice through analyses - comparison of two cab car end frame designs
    Martinez, Eloy ;
    Tyrell, David
    2005-03-16 | PDF
    Non-linear large deformation analyses have been conductedto evaluate the performance of the cab car corner and collisionposts of the Federal Railroad Administration's (FRA)sponsored state-of-the-art (SOA) end frame design and theBombardier M7 design under quasi-static and dynamic testconditions. Pre-test analysis predictions of the dynamicperforman ...
  • The influence of train type car weight and train length on passenger train crashworthiness
    The influence of train type, car weight, and train length on passenger train crashworthiness
    Priante, Michelle ;
    Tyrell, David
    2005-03-16
    Crash energy management (CEM) is a type of equipmentdesign that is intended to protect occupant space during acollision. Structures at the front and back of each car act ascrumple zones that absorb the collision energy. CEM isintended to distribute the damage from a collision throughout aconsist to unoccupied areas. This paper describes how factors ...
801 - 820 / 1162