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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 301 - 320 of 1163 results
  • Developing Low Service Temperature Steels for Railroads Truck Castings
    Developing Low Service Temperature Steels for Railroads Truck Castings
    Stewart, Monique Ferguson
    2020-05-01 | PDF
    At low temperatures, plain carbon steels, such as the types used in truck castings, can fracture in a brittle manner, with no visible deformation. The ability of a material to deform without fracture is its toughness or ductility. Figure 1 shows a broken side frame. The addition of elements such as nickel can help steel maintain its toughness at lo ...
  • Fire Tests of Reduced Scale Rail Car Floor Assemblies Research Results
    Fire Tests of Reduced Scale Rail Car Floor Assemblies [Research Results]
    Shurland, Melissa
    2020-05-01 | PDF
    The Federal Railroad Administration contracted Jensen Hughes (JH) to conduct tests to validate the methodology for reducing the size of a test specimen for rail car floor fire resistance compliance test. The tests were conducted on May 20–24, 2019, at Southwest Research Institute (SwRI). Full-scale and reduced-scale floor assemblies were tested wit ...
  • Preventing Stop Signal Overruns Good Practices for Passenger Railroads
    Preventing Stop Signal Overruns: Good Practices for Passenger Railroads
    Safar, Hadar ;
    France, Megan
    2020-05-01 | PDF
    Passing a stop signal without proper authority, also known as a stop signal overrun (SSO), can have serious consequences for safety, such as collisions, derailments, and injury to employees working on or near the track. The Federal Railroad Administration (FRA) has identified factors that contribute to trains passing stop signals, and possible meas ...
  • Experimental Results of RAWCAD Static Test
    Experimental Results of RAWCAD Static Test
    Stewart, Monique Ferguson ;
    Witte, Matthew
    2020-05-01 | PDF
    From September 7, 2018, to December 16, 2019, the Federal Railroad Administration supported the performance of semi static tests on two cracked axles as part of the Resonant Acoustic Wayside Automated Cracked Axle Detection (RAWCAD) project. The performance of detection algorithms for distinguishing frequency shift in cracked axles was evaluated at ...
  • Concepts for Interoperable Lifecycle Management of Positive Train Control PTC
    Concepts for Interoperable Lifecycle Management of Positive Train Control (PTC)
    Brosseau, Joseph ;
    Martinez, Paul
    2020-05-01 | PDF
    Transportation Technology Center, Inc. (TTCI) developed initial concepts for a Positive Train Control (PTC) Interoperable Lifecycle Management (ILM) system to support established and evolving industry processes to manage, coordinate, and document changes to PTC throughout its lifecycle. As part of the project, TTCI engaged industry groups establish ...
  • ReducedScale Rail Car Floor Fire Test Specimen Feasibility Study
    Reduced-Scale Rail Car Floor Fire Test Specimen Feasibility Study
    Shurland, Melissa
    2020-05-01 | PDF
    The Federal Railroad Administration (FRA) contracted with Jensen Hughes (JH) to conduct research on the feasibility of reducing the size of the test article for floor fire resistance testing. Rail car assemblies manufactured in the United States are currently required to demonstrate (per Title 49 Code of Federal Regulations Part 238) their fire res ...
  • Investigating the Prominent Failure Mode of Cut Spikes Used in Elastic Fastening Systems
    Investigating the Prominent Failure Mode of Cut Spikes Used in Elastic Fastening Systems
    United States. Department of Transportation. Federal Railroad Administration
    2020-05-01 | PDF
    Under the sponsorship of the Federal Railroad Administration, researchers conducted finite element (FE) analyses at the Volpe National Transportation Systems Center from April 2018 to July 2019 to understand the underlying mechanisms contributing to the main observed failure modes of cut spikes used with elastic fastening systems for wood ties. One ...
  • Measuring the Displacement Environment Between a Locomotive and Trailing Car
    Measuring the Displacement Environment Between a Locomotive and Trailing Car
    Transportation Technology Center, Inc.  ...
    2020-05-01 | PDF
    The Federal Railroad Administration (FRA) funded a project conducted by Transportation Technology Center, Inc.’s (TTCI) Association of American Railroads’ (AAR) Natural Gas Fuel Tender (NGFT) Technical Advisory Group (TAG) in developing industry standards for NGFT tenders. The objective was to measure and understand the triaxial displacement enviro ...
  • ReferenceFree Estimates of Railroad Bridge Displacement Under Revenue Service Traffic
    Reference-Free Estimates of Railroad Bridge Displacement Under Revenue Service Traffic
    Spencer, B.F. ;
    Gomez, F.
    2020-05-01 | PDF
    A top bridge research priority for railroad owners is to determine bridge displacements under in-service train loadings. Recent studies have demonstrated that displacement data assists railroad owners in prioritizing maintenance, repair, and replacement policies. However, displacement measurements are expensive to collect because of the need for st ...
  • Revenue Service Evaluation of a Truck Component Inspection System
    Revenue Service Evaluation of a Truck Component Inspection System
    Witte, Matthew ;
    Meddah, Abe
    2020-04-22 | PDF
    The Federal Railroad Administration, in collaboration with the Association of American Railroads and project coordinator Transportation Technology Center, Inc., has sponsored a revenue service test of an automated, machine vision inspection system for evaluating truck components on railcars. The system was from KLD Labs of Hauppauge, NY, and instal ...
  • Locomotive Crash Energy Management VehicletoVehicle Impact Test Results
    Locomotive Crash Energy Management Vehicle-to-Vehicle Impact Test Results
    Llana, Patricia ;
    Jacobsen, Karina
    2020-04-22 | PDF
    Research to develop new technologies for increasing the safety of passengers and crew in rail equipment is being directed by the Federal Railroad Administration’s (FRA’s) Office of Research, Development, and Technology. Two crash energy management (CEM) components that can be integrated into the end structure of a locomotive have been developed: a ...
  • Extended Field Trials of LRAIL for Automated Track Change Detection
    Extended Field Trials of LRAIL for Automated Track Change Detection
    Fox-Ivey, Richard ;
    Nguyen, Thanh V.
    2020-04-01 | PDF
    LRAIL is a 3-dimensional laser inspection system that combines high-speed laser triangulation sensors and artificial intelligence to automatically inspect the condition of, and detect safety-related changes in, railway infrastructure. For this project, LRAIL technology was installed on a specialized hi-rail inspection trailer and data were captured ...
  • Monitoring and Modeling of Differential Movement at Railway Transitions
    Monitoring and Modeling of Differential Movement at Railway Transitions
    Stark, Timothy D. ;
    Wilk, Stephen T.
    2020-04-01 | PDF
    The Federal Railroad Administration sponsored a research team from the University of Illinois at Urbana-Champaign to conduct laboratory and field research of railroad bridge transitions between September 2011 and December 2015. In this report, researchers present an interpretation of Amtrak and Norfolk Southern (NS) railway transitions and 3-dimens ...
  • Consistent Trespasser Intent Determination Criteria Pilot Project
    Consistent Trespasser Intent Determination Criteria Pilot Project
    Chase, Stephanie G. ;
    Hiltunen, Danielle
    2020-04-01 | PDF
    This document describes a pilot project that evaluated the potential for developing standardized criteria that railroads can use to determine the probable intent (i.e., suicide or accident) of individuals involved in trespasser strikes on railroad right-of-way in the United States. These criteria are designed to help railroads better understand sui ...
  • Evaluation of PTC Braking Enforcement Algorithms for Passenger and Commuter Trains
    Evaluation of PTC Braking Enforcement Algorithms for Passenger and Commuter Trains
    Dasher, Jeremy ;
    Morrison, Kenny
    2020-04-01 | PDF
    Software algorithms used in Positive Train Control (PTC) systems designed to predict passenger train stopping distance and enforce a penalty brake application must be evaluated to verify their performance, which can be challenging due to variations in operational and equipment characteristics. The Federal Railroad Administration contracted Transpor ...
  • External Perception for Locomotives Systems and Algorithm Development
    External Perception for Locomotives: Systems and Algorithm Development
    Brown, Daniel ;
    Jafek, Ben
    2020-04-01 | PDF
    The Federal Railroad Administration sponsored a research team from Aurora Flight Sciences to develop the External Perception for Locomotives (ExP-L) system, which uses the FRA Cab Technology Integration Lab (CTIL) to demonstrate prototype object operator augmentation. The system can detect and localize objects of interest in and around the track, i ...
  • Trespass Risk in Quiet Zones
    Trespass Risk in Quiet Zones
    Ngamdung, Tashi ;
    da Silva, Marco P.
    2020-03-31 | PDF
    The U.S. Department of Transportation (DOT) John A. Volpe National Transportation Systems Center, under the direction of the DOT’s Federal Railroad Administration (FRA), Office of Research, Development and Technology, studied the effects of the implementation of quiet zones on trespass accidents along the national rail network. This study focused o ...
  • An Investigation of the Effects of Positive Train Control Systems on Track Maintenance
    An Investigation of the Effects of Positive Train Control Systems on Track Maintenance
    McHenry, Mike ;
    Brown, Michael
    2020-03-09 | PDF
    The Federal Railroad Administration (FRA) contracted Transportation Technology Center, Inc. (TTCI) to conduct a broad analysis of the impacts of Positive Train Control (PTC) systems and technology on track maintenance. This research was conducted between September 2019 and September 2020. This report documents the activities of the effort, includin ...
  • Development of Prototype Commuter Rail Passenger Seats for Use in CEM Passenger Rail Cars
    Development of Prototype Commuter Rail Passenger Seats for Use in CEM Passenger Rail Cars
    Rancatore, Robert J ;
    Stringfellow, Richard G
    2020-03-08 | PDF
    In support of the Federal Railroad Administration’s Equipment Safety Research Program, the Volpe Center has been conducting research to improve occupant protection during accidents for rail car passengers. This report describes a project conducted to develop and test a prototype design for a more crashworthy three-person seat that reduces passenger ...
  • Railroad Wireless Communications Roadmap
    Railroad Wireless Communications Roadmap
    Ramos, Aaron ;
    Gacnik, Jill
    2020-03-01 | PDF
    The Federal Railroad Administration (FRA) sponsored a project conducted by Transportation Technology Center, Inc. (TTCI) to analyze railroad wireless communication needs and future uses. TTCI examined the railroads’ general wireless communication needs and future uses, and analyzed in further detail the railroads’ wireless needs in a representative ...
301 - 320 / 1163