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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 81 - 100 of 1162 results
  • The Impact of Commute Times on the Fatigue and Safety of Locomotive Engineers and Conductors
    The Impact of Commute Times on the Fatigue and Safety of Locomotive Engineers and Conductors
    Dunn, Naomi J. ;
    Soccolich, Susan
    2023-06-01 | PDF
    An online survey was developed by the Virginia Tech Transportation Institute and distributed by the Brotherhood of Locomotive Engineers and Trainmen (BLET) and the Sheet Metal, Air, and Rail Transportation workers –Transportation Division (SMART-TD) labor unions to their members. The purpose of the survey was to better understand the factors that c ...
  • Case Studies to Develop a HighwayRail Grade Crossing Analysis Framework Using Microsimulation
    Case Studies to Develop a Highway-Rail Grade Crossing Analysis Framework Using Microsimulation
    Creasey, F. Thomas ;
    Choi, Janet
    2023-06-01 | PDF
    There are approximately 126,700 highway-rail at-grade crossings in the U.S. A portion of those involve high-volume public streets where crossing events result in measurable traffic backups and delays to the extent that mitigation efforts are needed. Conventional traffic analysis methods such as those in the Highway Capacity Manual are limited in th ...
  • Office Safety Checker for Moving Block Train Control Systems Research Results
    Office Safety Checker for Moving Block Train Control Systems [Research Results]
    Withers, Jared ;
    Wilson, Moyah
    2023-05-01 | PDF
    As part of a research project sponsored by the Federal Railroad Administration (FRA) between June 2020 and May 2022, Transportation Technology Center, Inc. (TTCI) developed and analyzed a concept for the Office Safety Checker (OSC) component of the Moving Block Office (MBO), a segment of a moving block train control system concept.
  • Short Line Safety Institute 2022 Systematic Review Research Results
    Short Line Safety Institute: 2022 Systematic Review [Research Results]
    Kidda, Starr ;
    Leone, Julia
    2023-05-01 | PDF
    The Short Line Safety Institute (SLSI) is dedicated to the continuous improvement of safety and safety culture across all short line and regional railroads in the United States. Strengthening a railroad’s safety culture may result in less frequent or severe accidents and create a safer working environment. SLSI defines safety culture as the shared ...
  • Locomotive Horn Detectability at CloselySpaced HighwayRail Grade Crossings
    Locomotive Horn Detectability at Closely-Spaced Highway-Rail Grade Crossings
    Rapoza, Amanda ;
    Boeker, Eric
    2023-05-01 | PDF
    Researchers assessed the feasibility of altering the locomotive horn sounding pattern of repetition at each crossing in a series of closely-spaced grade crossings by exploring the specific geometries and warning requirements for motorists in advance of such crossings. Acoustic modeling on five example scenarios showed that the locomotive horn would ...
  • Developing Safe and Efficient Driving and Routing Strategies at Railroad Grade Crossings based on HighwayRailway Connectivity
    Developing Safe and Efficient Driving and Routing Strategies at Railroad Grade Crossings based on Highway-Railway Connectivity
    Zhang, Kuilin ;
    Lautala, Pasi
    2023-05-01 | PDF
    This report documents the research involved in developing safe and efficient driving and routing strategies at highway-rail grade crossings (i.e., highway-rail intersections) based on highway-rail connectivity for economic evaluation, driver behavior analysis, and Eco-Driving and Eco-Routing strategies. From September 2019 to December 2022, a resea ...
  • Finite Element Model Validation of THOR50M ATD for APTA Table Test Research Results
    Finite Element Model Validation of THOR-50M ATD for APTA Table Test [Research Results]
    Gordon, Jeff ;
    Severson, Kristine
    2023-05-01 | PDF
    The Federal Railroad Administration (FRA) sponsored Volpe Center researchers to validate a publicly available finite element (FE) model of the Test device for Human Occupant Restraint 50th Percentile Male (THOR-50M) anthropomorphic test device (ATD) in LS-DYNA. The model used selected data from a series of 28 pendulum impact tests [1] to the ATD’s ...
  • Finite Element Analysis of APTA Passenger Rail 8G Injury Seat Test Research Results
    Finite Element Analysis of APTA Passenger Rail 8G Injury Seat Test [Research Results]
    Gordon, Jeff ;
    Severson, Kristine
    2023-05-01 | PDF
    The Federal Railroad Administration (FRA) sponsored researchers at the Volpe Center to perform finite element analyses (FEA) of 8g dynamic crash tests using a commuter rail 2-passenger seat design with different sized Hybrid-III anthropomorphic test devices (ATDs) including: (1) 50th percentile male (H3-50M), (2) 5th percentile female (H3-5F), and ...
  • Finite Element Analysis of APTA Passenger Rail 8G Structural Seat Test Research Results
    Finite Element Analysis of APTA Passenger Rail 8G Structural Seat Test [Research Results]
    Gordon, Jeff ;
    Severson, Kristine
    2023-05-01 | PDF
    The Federal Railroad Administration (FRA) sponsored researchers at the Volpe Center to perform finite element analyses (FEA) of 8g dynamic crash tests with a commuter rail 2-passenger seat design and Hybrid-III family anthropomorphic test devices (ATDs).
  • Improved Collision Protection for Train Passengers Seated in Wheelchairs Evaluation of Active and Passive Strategies
    Improved Collision Protection for Train Passengers Seated in Wheelchairs: Evaluation of Active and Passive Strategies
    Hunter-Zaworski, Katharine M.
    2023-04-14 | PDF
    The project evaluates wheeled mobility device (WhMD) securement and occupant restraint on passenger trains. Researchers tested three off-the-shelf wheelchair securement systems in a train-to-train collision as a proof-of-concept to mitigate the effects of second impact velocity. The tests evaluated the performance of the securement devices regardin ...
  • Automated Track Change Detection Technology for Enhanced Railroad Safety Assessment
    Automated Track Change Detection Technology for Enhanced Railroad Safety Assessment
    Harrington, Ryan ;
    de Oliveira Lima, Arthur
    2023-04-01 | PDF
    The Rail Transportation and Engineering Center at the University of Illinois at Urbana-Champaign and Railmetrics, Inc. evaluated the use of 3D laser scanning, Deep Convolutional Neural Networks (DCNNs), and change detection technology for railway track safety inspections. Researchers evaluated the potential use of these combined technologies to pro ...
  • Intelligent Wireless Power Transfer IWPT for Safe Electric Power Charging of Rolling Stock
    Intelligent Wireless Power Transfer (IWPT) for Safe Electric Power Charging of Rolling Stock
    Zhao, Tiefu ;
    Braxtan, Nicole
    2023-04-01 | PDF
    To improve the safety of the electric power charging system for rolling stock, including both propulsion and ancillary use of stored electric power, this project proposes the use of Intelligent Wireless Power Transfer (IWPT) technology for power charging. The proposed IWPT technology removes humans from the process of locomotive battery charging, t ...
  • Comparison of Measured and Simulated Longitudinal Coupler Force on Tank Cars
    Comparison of Measured and Simulated Longitudinal Coupler Force on Tank Cars
    Martin, Timothy
    ORCID ICON IMG
    2023-04-01 | PDF
    Fractures in the stub sills of tank cars pose a significant problem for the rail industry due to the potential for damage to the tank structure and eventual release of the contents. Previous FRA research revealed that high magnitude coupling forces that occur in yard operations have the potential to exceed the yield limits of mild steel. FRA, Union ...
  • LowCost Coupler Force Calculation from Impact Testing
    Low-Cost Coupler Force Calculation from Impact Testing
    Martin, Timothy
    ORCID ICON IMG
    2023-04-01 | PDF
    Fractures in the stub sills of tank cars pose a significant problem for the rail industry due to the potential for damage to the tank structure and eventual release of the contents. Previous FRA research revealed that high magnitude coupling forces that occur in yard operations have the potential to exceed yield limits of mild steel. FRA, Union Tan ...
  • Locomotive Crash Energy Management TraintoTrain Impact Test Research Results
    Locomotive Crash Energy Management: Train-to-Train Impact Test [Research Results]
    Gordon, Jeff
    2023-03-01 | 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, integrated into the end structure of a locomotive, have been developed: a push-back ...
  • HumanAutomation Teaming in Track Inspection
    Human-Automation Teaming in Track Inspection
    France-Peterson, Megan ;
    Multer, Jordan
    2023-03-01 | PDF
    This report provides a foundational overview of how the rail industry can approach the design of human-automation teams (HATs), with the goal of improving safety and efficiency in the track inspection process. The authors present a general process for designing HATs, then explore how this design process can be applied to track inspection. The repor ...
  • Wireless Digital Train Line for Passenger Trains Phase 3
    Wireless Digital Train Line for Passenger Trains – Phase 3
    Sharif, Hamid ;
    Hempel, Michael
    2023-02-01 | PDF
    In an extensive third phase of a Federal Railroad Administration-funded research project running from August 2020 through July 2022, a team at the Advanced Telecommunications Engineering Laboratory at the University of Nebraska-Lincoln designed, developed, and evaluated wireless communications architectures for rail services in North America, with ...
  • Evaluation of ScenarioBased Training for Railroad Transportation Employees
    Evaluation of Scenario-Based Training for Railroad Transportation Employees
    Young, Jared ;
    Multer, Jordan
    2023-02-01 | PDF
    In 2015, a peer review team (PRT) comprised of labor, craft employees, and railroad managers developed railroad scenario-based training (SBT). The PRT was responsible for reviewing close call reports and developing recommendations to address unsafe conditions on the railroad. The objective of SBT is to improve the coordination of teams to operate s ...
  • Railroad Bridge Inspection Using DroneBased Digital Image Correlation Research Results
    Railroad Bridge Inspection Using Drone-Based Digital Image Correlation [Research Results]
    Stuart, Cameron ;
    Vitzilaios, Nikolaos
    2023-02-01 | PDF
    Continuous railroad operations on aging railway infrastructure requires systematic and effective inspection. Visual inspections are time consuming and can lead to inconsistent results. In a research project conducted between April 2021 and June 2022, the University of South Carolina (UofSC) developed and tested a new uncrewed aircraft system (UAS, ...
  • Fire Test of an UNT75 Portable Tank on a Flat Car Phase II Research Results
    Fire Test of an UN-T75 Portable Tank on a Flat Car Phase II [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
    2023-01-01 | PDF
    The Federal Railroad Administration (FRA) contracted Southwest Research Institute (SwRI) to evaluate the fire performance of an alternative fuel storage tank using analytical methods and fire testing. The objective of this project was to expose an LNG rail storage tank to fire conditions and observe the performance of the pressure relief valve (PRV ...
81 - 100 / 1162