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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 281 - 300 of 1162 results
  • Enhanced Automatic Train Control Braking Algorithm Research and Development Research Results
    Enhanced Automatic Train Control Braking Algorithm Research and Development [Research Results]
    United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
    2020-08-01 | PDF
    Transportation Technology Center, Inc., as part of a project sponsored by the Federal Railroad Administration, evaluated the safety and operational performance of the Enhanced Automatic Train Control (E-ATC) braking enforcement algorithm and found it exceeds previously established safety objectives, but also may introduce operational inefficiencies ...
  • Predicting FullyDeveloped Passenger Rail Car Fire Heat Release Rate
    Predicting Fully-Developed Passenger Rail Car Fire Heat Release Rate
    Yang, Fengchang ;
    Hodges, Jonathan
    2020-08-01 | PDF
    This report provides the results of the initial development of scaling laws for use in developing cost effective experimental measurements of a passenger rail car heat release rate (HRR) history as well as modeling approaches for predicting passenger rail car HRR. Scaling laws were successfully developed to predict the fire dynamics and material bu ...
  • Research Development and Technology Strategic Plan 20202024
    Research, Development and Technology Strategic Plan 2020–2024
    United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
    2020-07-01 | PDF
    The Railroad Research and Development program is managed by the Federal Railroad Administration’s Office of Research, Development and Technology (RD&T). Its mission is to improve railroad safety. This plan describes the strategies that RD&T will use to achieve this mission and support the U.S. Department of Transportation’s goals. The program’s mis ...
  • Inclusive and Universal Accessible Design Considerations for Next Generation of Passenger Railcars
    Inclusive and Universal Accessible Design Considerations for Next Generation of Passenger Railcars
    Hunter-Zaworski, Katharine M. ;
    Rutenberg, Uwe
    2020-07-01 | PDF
    Oregon State University (OSU), with Federal Railroad Administration support, investigated universal, inclusive, and accessible design for the next generation of passenger rail cars. Working with the Next Generation Equipment Committee, OSU developed recommendations for improved accessibility on the next generation of intercity bi-level and single-l ...
  • FullScale Shell Impact Test of a DOT113 Tank Car Surrogate Research Results
    Full-Scale Shell Impact Test of a DOT-113 Tank Car Surrogate [Research Results]
    United States. Department of Transportation. Federal Railroad Administration
    2020-07-01 | PDF
    On June 11, 2020, the Federal Railroad Administration (FRA) conducted a full-scale shell impact test (Test 11) of a surrogate DOT-113 specification tank car at the Transportation Technology Center (TTC) in Pueblo, CO. This test was the second DOT-113 impact test in a planned series of four. A DOT-113 is a double-walled tank car (i.e., tank-within-a ...
  • Load Shedding Phase II III Concept Passenger Rail Equipment
    Load Shedding - Phase II & III: Concept Passenger Rail Equipment
    Guntaka, Anuradha ;
    Martin, Kenneth L.
    2020-07-01 | PDF
    An investigation occurred by Sharma & Associates, Inc. (SA) of the feasibility of temporarily shedding electrical demand associated with passenger car heating ventilation and air conditioning (HVAC) systems during periods of peak traction demand, with the goal of right-sizing the main engine on a passenger locomotive. Architecture of a concept to m ...
  • Feasibility of Load Shedding to Improve Efficiency and Reduce Energy Consumption on Passenger Locomotives Phase I
    Feasibility of Load Shedding to Improve Efficiency and Reduce Energy Consumption on Passenger Locomotives, Phase I
    Guntaka, Anuradha ;
    Martin, Kenneth L.
    2020-07-01 | PDF
    This report discusses the feasibility of temporarily shedding electrical demand associated with heating and ventilation air conditioning (HVAC) systems of passenger cars during periods of peak traction, with the goal of right-sizing the main engine on a passenger locomotive. Industrial approaches to load shedding were reviewed to evaluate whether t ...
  • Positive Train Control Braking Algorithm Evaluation Methodology Enhancement
    Positive Train Control Braking Algorithm Evaluation Methodology Enhancement
    Pate, Shad ;
    Anaya, Rachel
    2020-07-01 | PDF
    This report describes the investigation and implementation of changes performed by Transportation Technology Center, Inc. (TTCI) to improve the efficiency and capabilities of the current Positive Train Control (PTC) braking algorithm evaluation methodology for freight operations. Improvements included: Simulated cases with an addition of PTC enforc ...
  • Pressure Distributions and Magnitudes at the TieBallast Interface
    Pressure Distributions and Magnitudes at the Tie/Ballast Interface
    Rose, Jerry G. ;
    Malloy, Brett R.
    2020-06-15 | PDF
    The final report for NURail project: NURail2016-UKY-R12 consists of six distinct documents related to the project titled: “Pressure distributions and magnitudes at the tie/ballast interface.”a.Pages 2 – 26: “Asphalt Underlayment Highway/Railway At-Grade Crossings: Designs, Applications, and Long-TermPerformance Evaluations” by Jerry G. Rose and Bre ...
  • Reliability and Endurance Testing of Locomotive Waste Heat Recovery System
    Reliability and Endurance Testing of Locomotive Waste Heat Recovery System
    Filippone, Claudio
    2020-06-01 | PDF
    From August 20, 2012, to September 30, 2015, the Federal Railroad Administration (FRA) sponsored this research for the optimization and testing of a non-invasive locomotive retrofit technology, Locomotive Waste Heat Recovery System (WHRS) dedicated to capturing and converting locomotive waste thermal energy. Optimization and testing activities were ...
  • Performance of Tank Car Pressure Relief Devices Under Fire Conditions Research Results
    Performance of Tank Car Pressure Relief Devices Under Fire Conditions [Research Results]
    Gonzalez, Francisco, III
    2020-06-01 | PDF
    The Federal Railroad Administration (FRA) conducted a series of fire tests on one-third scale models of a non-pressure tank car to evaluate the performance of Pressure Relief Devices (PRDs) under fire conditions. PRDs help to limit the pressure buildup in tank cars under fire conditions, thereby reducing the potential for a tank explosion. Based on ...
  • Train Energy and Dynamics Simulator TEDS Revenue Service Validation Volume I Unit Train
    Train Energy and Dynamics Simulator (TEDS) Revenue Service Validation: Volume I Unit Train
    Booth, Graydon F. ;
    Buel, Tanner
    2020-06-01 | PDF
    The Train Energy and Dynamics Simulator (TEDS) is simulation software, funded by the Federal Railroad Administration (FRA) and developed by Sharma & Associates, Inc. (SA), to study train operation safety and performance as affected by equipment, train makeup, train handling, track conditions, operating practices and environmental conditions. This r ...
  • Cyber Security Risk Management for Connected Railroads
    Cyber Security Risk Management for Connected Railroads
    Liu, Xiang ;
    Wijesekera, Duminda
    2020-06-01 | PDF
    This research develops a cyber security risk analysis methodology for communications-based connected railroad technologies. The methodology can be tailored to specific use cases and system designs. By implementing the methodological framework, the study can identify potential cyber attack threats, vulnerabilities, and consequences for each case, an ...
  • Railway Operations Class
    Railway Operations Class
    Clarke, David B.
    2020-05-31 | PDF
    Increasing the number and diversity of rail-focused courses is an important step in rebuilding America’s railway education infrastructure. Currently, most college level rail courses are on railway civil engineering topics. The Universities of Tennessee and South Carolina jointly developed a college class on railway operations. Providing engineering ...
  • Enhanced Automatic Train Control Braking Algorithm Research and Development
    Enhanced Automatic Train Control Braking Algorithm Research and Development
    Dasher, Jeremy ;
    Anaya, Rachel
    2020-05-08 | PDF
    The primary objective of the project was the evaluation of the braking enforcement methodology used by the railroads that have implemented an E-ATC PTC system. The methodology developed under this project can be used by the industry to verify that the braking enforcement algorithms meet established safety and operational efficiency objectives. The ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
281 - 300 / 1162