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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 161 - 180 of 1162 results
  • Implementing SLSIProvided Opportunities Supports Safety Culture Growth Research Results
    Implementing SLSI-Provided Opportunities Supports Safety Culture Growth [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
    2022-04-01 | PDF
    Open-bay seating is a common configuration in U.S. passenger railcars. The current version of the American Public Transportation Association’s safety standard on passenger seating (APTA PR-CS-S-016-99, Rev. 3) requires open-bay seats to be tested if more than 50 percent of a car’s seating is configured as open-bay. The objective of this research st ...
  • Investigation of Wheel and Rail Rolling Contact Fatigue Using a FullScale Simulator
    Investigation of Wheel and Rail Rolling Contact Fatigue Using a Full-Scale Simulator
    Tournay, Harry ;
    Shu, Xinggao
    2022-03-01 | PDF
    With support from FRA, Transportation Technology Center Inc. (TTCI) developed a full-scale rolling contact fatigue simulator (RCFS) to research the root causes of wheel and rail surface damage. This damage comprises surface pitting, cracking, wear, and material flow and is a function of both the vertical wheel load (and normal contact stresses) and ...
  • Effect of Concrete Composition on Splitting Cracks in Prestressed Concrete Railroad Ties Research Results
    Effect of Concrete Composition on Splitting Cracks in Prestressed Concrete Railroad Ties [Research Results]
    Stuart, Cameron ;
    Peterman, Robert J.
    2022-03-01 | PDF
    This research was part of a larger project, “Developing Qualification Tests to Ensure Proper Selection and Interaction of Pretensioned Concrete Railroad Tie Materials.” Kansas State University (KSU) conducted this research under contract with the Federal Railroad Administration from 2015 through 2019. This report highlights advances in methods to e ...
  • Field Validation of Vertical Tie Reaction Force Measurement Using Rail Strain Gauges Research Results
    Field Validation of Vertical Tie Reaction Force Measurement Using Rail Strain Gauges [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
    2022-03-01 | PDF
    On October 2021 in Chambersburg, PA, the Federal Railroad Administration (FRA) tasked ENSCO Inc. and Oklahoma State University (OSU) to verify the concept and assess how different track and loading configurations can affect the accuracy of the measurements. This document provides a summary of the results for statically applied loads.
  • Electronically Controlled Pneumatic Brake Device with Pneumatic Brake Emulation Field Demonstration
    Electronically Controlled Pneumatic Brake Device with Pneumatic Brake Emulation – Field Demonstration
    Sharma & Associates, Inc.
    2022-03-01 | PDF
    Electronically Controlled Pneumatic (ECP) brake technology can improve both safety and braking performance of trains. One of the technical barriers is the interchange requirement of a freight car. This barrier can be addressed either by an overlay ECP or an ECP emulator. Under a previous effort, Sharma & Associates (SA) procured three sets of emula ...
  • Review of Tank Car Side Impact Test Research and Analyses of 20072019
    Review of Tank Car Side Impact Test Research and Analyses of 2007–2019
    Krishnamurthy, Aswani ;
    Trevithick, Shawn
    2022-03-01 | PDF
    The Federal Railroad Administration (FRA) has a long-standing research program to examine the puncture resistance of railroad tank cars used in the transportation of hazardous materials within the U.S. Since 2007. FRA conducted 11 tank car shell impact tests at the Transportation Technology Center, Inc. (TTC) in Pueblo, CO, with the Volpe National ...
  • Acoustical Warning Device for Locomotive Horns
    Acoustical Warning Device for Locomotive Horns
    Campbell, Tom ;
    Parida, Basant
    2022-02-01 | PDF
    This report summarizes the research and development of a variable directivity Acoustic Warning Device (AWD) used as a locomotive horn. A Global Positioning System (GPS) was developed to control an arrangement of directional loudspeakers. Loudspeakers are arranged on the locomotive so that sound is directed forward when the horn is initially sounded ...
  • Proceedings of FRA Workshops on Environmentally Sustainable Energy Technologies Powering Future of Rai
    Proceedings of FRA Workshops on Environmentally Sustainable Energy Technologies Powering Future of Rai
    Schlunk, Andrea ;
    Shurland, Melissa
    2022-02-01 | PDF
    The transportation sector is seeking to reduce its emissions in a cost-effective and safe manner in response to the climate crisis. The Federal Railroad Administration (FRA) conducted a workshop for domestic and international experts to discuss experiences and challenges regarding alternative fuels, advanced propulsive technology research and imple ...
  • InVehicle Auditory Alerts Literature Review
    In-Vehicle Auditory Alerts Literature Review
    Jeon, Myounghoon ;
    Lautala, Pasi
    2022-02-01 | PDF
    This literature review covers over 70 documents related to standards, research, and use cases on the design of in-vehicle auditory alerts (IVAAs) for highway-rail grade crossings (HRGCs). Although standards exist for auditory warnings in vehicles and they have been used for years, there are only a few examples of their use at HRGCs. Furthermore, th ...
  • Mechanical Properties of TC128B Steel during Multiple Stages of Tank Car Fabrication
    Mechanical Properties of TC-128B Steel during Multiple Stages of Tank Car Fabrication
    Sullivan, Laura ;
    Carolan, Michael
    2022-02-01 | PDF
    This report describes a testing program examining the effects of different stages of tank car fabrication on the mechanical properties of TC-128B steel. This work focused on two procedures: cold-working associated with rolling a flat plate of steel into the cylindrical tank shell and post-weld heat treatment (PWHT). The Volpe National Transportatio ...
  • Unsaturated Characteristics of Fouled Ballast to Support In Situ Identification of Fouling Using Ground Penetrating Radar Phase I
    Unsaturated Characteristics of Fouled Ballast to Support In Situ Identification of Fouling Using Ground Penetrating Radar – Phase I
    Kulesza, Stacey ;
    Barry, Michelle L
    2022-02-01 | PDF
    This research established a protocol for sample preparation and testing between a large suction water characteristic curve (SWCC) device and a large-scale direct shear (LSDS) device using clean ballast and fouling material collected from mainline track. This allowed for comparisons of strength and volumetric behavior at volumetric water contents fr ...
  • Performance of Tank Pressure Relief Devices Under Derailment Fire Conditions
    Performance of Tank Pressure Relief Devices Under Derailment Fire Conditions
    Prabhakaran, Anand ;
    Booth, Graydon F.
    2022-02-01 | PDF
    Tank cars use pressure relief devices (PRDs) to protect the tank from overpressure situations, such as those resulting from derailment related fire exposure. However, these devices are not tested/certified under such high temperature conditions. The intent of this research program was to characterize PRD performance under these critical conditions ...
  • Evaluation of Egress Models for Passenger Rail Cars for Emergency and NonEmergency Scenarios
    Evaluation of Egress Models for Passenger Rail Cars for Emergency and Non-Emergency Scenarios
    Ingram, Brandon ;
    Datta, Mishuk
    2022-02-01 | PDF
    The ability to accurately predict and analyze passenger evacuations from rail cars is an important component of the Federal Railroad Administration’s (FRA) mission to enable the safe, reliable, and efficient movement of people and goods throughout the United States. Multiple commercial software packages are available for modeling pedestrian behavio ...
  • VehicletoInfrastructure Rail Crossing Violation Warning Phase II Appendix B to RCVW Phase II Final Report Field Test Evaluation Report
    Vehicle-to-Infrastructure Rail Crossing Violation Warning – Phase II Appendix B to RCVW – Phase II Final Report Field Test & Evaluation Report
    Sanchez-Badillo, Alejandro ;
    Baumgardner, Gregory
    2022-02-01 | PDF
    This Field Test Report and Evaluation document describes the test procedures, findings, and results obtained during the final field test of the RCVW system conducted at the Transportation Research Center Facilities located at East Liberty, OH.
  • Rail Crossing Violation Warning Application Phase II
    Rail Crossing Violation Warning Application – Phase II
    Sanchez-Badillo, Alejandro ;
    Baumgardner, Gregory
    2022-02-01 | PDF
    Phase 2 of the Rail Crossing Violation Warning (RCVW) application provides the means for equipped connected vehicles (CV) on approach to a highway-rail intersection (HRI) to be warned of an imminent violation of an HRI active warning/protective system through the interconnection of a CV Roadside-Based Subsystem (RBS) with track-circuit based train ...
  • Railroad Trespass Detection Using Deep LearningBased Computer Vision Research Results
    Railroad Trespass Detection Using Deep Learning-Based Computer Vision [Research Results]
    Jacobini, Francesco Bedini ;
    Ngamdung, Tashi
    2022-02-01 | PDF
    The U.S. Department of Transportation John A. Volpe National Transportation Systems Center (Volpe), under the direction of the Federal Railroad Administration (FRA) Office of Research, Development, and Technology, developed an AI software application for automating the detection of grade crossing violations and trespass activities from static camer ...
  • Concrete Tie Performance in Degraded Track Conditions Research Results
    Concrete Tie Performance in Degraded Track Conditions [Research Results]
    Stuart, Cameron ;
    Dersch, Marcus S.
    2022-01-01 | PDF
    FRA and RailTEC at the University of Illinois at Urbana-Champaign examined the performance of degraded concrete crossties installed on U.S. high-speed rail and joint passenger/freight rail corridors. Research showed that center binding conditions often led to flexural cracks in concrete crossties. This research resulted in revisions to the AREMA Ma ...
  • Interoperable EmployeeInCharge Portable Remote Terminal EICPRT Research Results
    Interoperable Employee-In-Charge Portable Remote Terminal (EIC-PRT) [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development  ...
    2022-01-01 | PDF
    Collaborating with the North American railroad industry, TTCI developed systems engineering documents defining the EIC-PRT system, including interoperable requirements for the EIC-PRT, EIC server, and onboard segments. Additionally, TTCI and its subcontractors developed a prototype roadway worker terminal application per the interoperable requireme ...
  • High Speed Rail Cost of Compliance for Noise Mitigation Procedures
    High Speed Rail: Cost of Compliance for Noise Mitigation Procedures
    Paul, James ;
    Neeraj, Vyom
    2022-01-01 | PDF
    This report includes the results of follow-on research related to high speed rail noise. The earlier study, entitled High Speed Rail Noise Standards and Regulations, surveyed noise standards and regulations currently in place within the US, EU, Japan, and China as well as methods employed to mitigate noise impacts. It was found that the identified ...
  • Fouled Ballast Waiver Operations and Results
    Fouled Ballast Waiver Operations and Results
    Bruzek, Radim ;
    Stark, Timothy D.
    2022-01-01 | PDF
    Current regulations require locations of noncompliant ballast to be remediated within 30 days or to be taken out of service, regardless of track class. In 2013, the Association of American Railroads (AAR) applied for a waiver to the current regulations that proposed a track class specific approach to managing noncompliant ballast. In 2015, the Fede ...
161 - 180 / 1162