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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 441 - 460 of 1163 results
  • Slab Track at Facility for Accelerated Service Testing Performance and Serviceability
    Slab Track at Facility for Accelerated Service Testing: Performance and Serviceability
    Rakoczy, Anna M. ;
    Dick, Stephen
    2018-02-01 | PDF
    The Transportation Technology Center, Inc., with funding by the Portland Cement Association and the Federal Railroad Administration, documented the available records associated with the performance of the concrete slab track section in the High Tonnage Loop at the Facility for Accelerated Service Testing (FAST) at the Transportation Technology Cent ...
  • Performance of Rail Fastening Systems on an OpenDeck Bridge
    Performance of Rail Fastening Systems on an Open-Deck Bridge
    Jimenez, Rafael ;
    Baillargeon, Jay
    2018-02-01 | PDF
    Transportation Technology Center, Inc. (TTCI) monitored the performance of rail fasteners on an open-deck bridge and its approaches, located at Norfolk Southern Corporation’s (NS's) eastern mega site. The project was co-sponsored by the Federal Railroad Administration (FRA) and the Association of American Railroads (AAR). The three rail fastening t ...
  • Talking about Rail Suicide Why the Words You Use Matters
    Talking about Rail Suicide: Why the Words You Use Matters
    Gabree, Scott H.
    ORCID ICON IMG
    2018-01-09 | PDF
    Reports findings on rail suicide prevention, focusing on the media reports rail suicides and its impact on the public.
  • Development and Evaluation of a Moving Map Display for Rail Applications
    Development and Evaluation of a Moving Map Display for Rail Applications
    Liu, Andrew ;
    Oman, Charles M.
    2017-11-01 | PDF
    This report describes the development and evaluation of a prototype real-time moving map display to support engineer situation awareness and safety performance for future U.S. high-speed rail applications. The development started with a hybrid Cognitive Task Analysis to develop Information and Functional Requirements for the display. Using basic de ...
  • Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors Volume 1 Project Summary Report
    Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors : Volume 1, Project Summary Report
    Edwards, J. Riley ;
    Dersch, Marcus S.
    2017-11-01 | PDF
    Rail corridors often experience a wide variety of passenger and freight train loads, track geometry characteristics, and environmental conditions. These factors must be considered when developing an “optimized” concrete crosstie and fastening system capable of performing under a wide range of service conditions.This project used basic and applied r ...
    Supporting Files
  • PassengerFreight train collision September 12 2008 Chatsworth CA
    Passenger/Freight train collision September 12, 2008, Chatsworth, CA
    Jeong, David ;
    Severson, Kristine
    2017-09-29 | PDF
    On September 12, 2008, a passenger train and freight train collided head-on in the Chatsworth district of Los Angeles, CA. Each train was initially travelling at more than 40 mph. Twenty-five people were killed and approximately 138 were injured, many severely. With assistance from emergency responders, local authorities, and accident survivors, bo ...
    Supporting Files
  • PassengerFreight train collision September 12 2008 Chatsworth CA main report and appendices
    Passenger/Freight train collision September 12, 2008, Chatsworth, CA : main report and appendices
    Jeong, David ;
    Severson, Kristine
    2017-09-29 | PDF
    On September 12, 2008, a passenger train and freight train collided head-on in the Chatsworth district of Los Angeles, CA. Each train was initially travelling at more than 40 mph. Twenty-five people were killed and approximately 138 were injured, many severely. With assistance from emergency responders, local authorities, and accident survivors, bo ...
  • Ground Penetrating Radar Technology Evaluation and Implementation Phase 2
    Ground Penetrating Radar Technology Evaluation and Implementation : Phase 2
    Brown, Mike ;
    Li, Dingqing
    2017-09-28 | PDF
    This report summarizes the results from Phase 2 of the ground penetrating radar (GPR) technologies evaluation performed by the Transportation Technology Center, Inc. at the revenue service monitoring sites on the Union Pacific Railroad and Amtrak. The scope of work included evaluation of ballast fouling and moisture sensitivity of two commercial GP ...
  • Asphalt Underlayment HighwayRailway AtGrade Crossings Designs Applications and LongTerm Performance Evaluations
    Asphalt Underlayment Highway/Railway At-Grade Crossings: Designs, Applications, and Long-Term Performance Evaluations
    Rose, Jerry G. ;
    Malloy, Brett R.
    2017-09-28 | PDF
    Historically, highway/railway at-grade crossings have been expected to deteriorate at a faster rate and require reconstruction at more frequent intervals than the adjacent pavement and open-track. Structurally, railways and highways are typically designed very differently, but must co-exist within the common area of the crossing. When the roughness ...
  • Causes and prevention of splittingbursting failure of concrete crossties a computational study
    Causes and prevention of splitting/bursting failure of concrete crossties: a computational study
    Yu, Hailing
    ORCID ICON IMG
    2017-09-17 | PDF
    Concrete splitting/bursting is a well-known failure mode of concrete crossties that can compromise the crosstie integrity and raise railroad maintenance and track safety concerns. This paper presents a computational study aimed at better understanding the main contributing factors to this failure mode. Finite element models are developed for concre ...
  • Amtrak performance tracking APT system methodology summary
    Amtrak performance tracking (APT) system : methodology summary
    Bucci, Gregory ;
    Hyde, David
    2017-09-15 | PDF
    The Volpe Center collaborated with Amtrak and the Federal Railroad Administration (FRA) to develop a cost accounting system named Amtrak Performance Tracking (APT) used by Amtrak to manage, allocate, and report its costs. APT’s initial development was detailed in a 2009 FRA Report to Congress and again in a 2016 update. This report is a summary of ...
  • Passenger car crippling endload test and analyses
    Passenger car crippling end-load test and analyses
    Klopp, Adam ;
    Rakoczy, Przemyslaw
    2017-09-01 | PDF
    The Transportation Technology Center, Inc. (TTCI) performed a series of full-scale tests and a finite element analysis (FEA) in a case study that may become a model for manufacturers seeking to use the waiver process of Tier I crashworthiness and occupant protection standards to qualify railcars with alternative designs. The test series included an ...
  • Signaling System and Advanced Civil Speed Enforcement System Upgrade to Transit Test Track at the Transportation Technology Center
    Signaling System and Advanced Civil Speed Enforcement System Upgrade to Transit Test Track at the Transportation Technology Center
    Gacnik, Jill ;
    Sheehan, Ryan
    2017-09-01 | PDF
    The Federal Railroad Administration (FRA) and the Transportation Technology Center, Inc. (TTCI) have upgraded the Positive Train Control (PTC) Test Bed at the Transportation Technology Center (TTC) in Pueblo, CO, by adding cab signaling and Advanced Civil Speed Enforcement System (ACSES) infrastructure to the Transit Test Track (TTT). The project w ...
    Supporting Files
  • A Survey of WheelRail Friction
    A Survey of Wheel/Rail Friction
    Magel, Eric E.
    2017-09-01 | PDF
    Friction has a huge influence on the vehicle/track interaction and yet it remains poorly understood, its consideration an afterthought in many simulation activities. This survey of friction summarizes current understanding and identifies gaps requiring further development. Classical friction theory and modern approaches to modelling are reviewed, a ...
  • Abdomen Impact Testing of the Hybrid III Rail Safety H3RS Anthropomorphic Test Device ATD
    Abdomen Impact Testing of the Hybrid III Rail Safety (H3-RS) Anthropomorphic Test Device (ATD)
    Hynd, David ;
    Carroll, J.A.
    2017-09-01 | PDF
    The Hybrid III Rail Safety (H3-RS) anthropomorphic test device (ATD) is a crash test dummy that was developed in the UK to evaluate abdomen and lower thorax injuries that occur when passengers impact workstation tables during train accidents. The H3-RS is similar to the standard Hybrid III 50th percentile male ATD used in car crash test regulations ...
  • Bridge Approach Remedies Implemented at Western Mega Site
    Bridge Approach Remedies Implemented at Western Mega Site
    Maal, Luis ;
    Carr, Gary
    2017-09-01 | PDF
    As part of the heavy axle load (HAL) revenue service mega site testing program, the Transportation Technology Center, Inc. (TTCI) has worked closely with the Union Pacific Railroad (UP) to address bridge approach problems under HAL operations. The testing program targeted two bridge locations at the western mega site (located near Ogallala, NE, on ...
  • Monitoring Longitudinal Rail Stress Using Diffuse Ultrasonic Backscatter
    Monitoring Longitudinal Rail Stress Using Diffuse Ultrasonic Backscatter
    Turner, Joseph A.
    2017-09-01 | PDF
    In this report, research was conducted at the University of Nebraska-Lincoln pertaining to the use of ultrasound scattering from polycrystalline grains to estimate and monitor stress in rail. The report presents a comprehensive discussion of the theoretical model of the scattering process, including all measurement parameters, such as the propertie ...
  • Measurement of Wheel Load Environment of AAR M976 Approved Truck
    Measurement of Wheel Load Environment of AAR M-976 Approved Truck
    Cakdi, Sabri ;
    Tournay, Harry
    2017-09-01 | PDF
    Measurement of Wheel Load Environment of AAR M-976 Approved Truck study (FRA Task Order 319) is the continuation of the Measurement of Wheel Load Environment of a 3-piece Truck study (Task Order 245) completed in November 2010 that increased understanding of the conditions under which wheel rolling contact fatigue (RCF) damage accumulates. In this ...
  • Hybrid Locomotive for Energy Savings and Reduced Emissions
    Hybrid Locomotive for Energy Savings and Reduced Emissions
    Ballew, Brent ;
    Barbee, Gibson
    2017-08-01 | PDF
    Norfolk Southern Corporation (NS) and Pennsylvania State University tested several different battery systems in hybrid locomotives. Advanced lithium-ion battery technology was the only kind that displayed the capacity to perform in heavy switching or local service. Testing proved hybrid locomotives could reduce emissions and save fuel, sometimes in ...
  • Blunt Impact Tests of Retired Passenger Locomotive Fuel Tanks
    Blunt Impact Tests of Retired Passenger Locomotive Fuel Tanks
    Carolan, Michael ;
    Rakoczy, Przemyslaw
    2017-08-01 | PDF
    The Transportation Technology Center, Inc. conducted impact tests on three locomotive fuel tanks as part of the Federal Railroad Administration’s locomotive fuel tank crashworthiness improvement program. Three fuel tanks, two from EMD F40PH locomotives and one from an EMD F40 locomotive, served as test specimens. A 14,075-pound impact cart equipped ...
441 - 460 / 1163