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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 421 - 440 of 1162 results
  • Blunt Impact Testing of a Diesel Multiple Unit Fuel Tank
    Blunt Impact Testing of a Diesel Multiple Unit Fuel Tank
    Gordon, Travis ;
    Carolan, Michael
    2018-07-16 | PDF
    Transportation Technology Center, Inc. (TTCI) performed a dynamic impact test of a diesel multiple unit (DMU) fuel tank at the Transportation Technology Center (TTC) in Pueblo, CO, where an impact vehicle weighing approximately 14,000 pounds equipped with a rigid 12-inch by 12-inch impactor head struck the bottom surface of a DMU fuel tank. At 11.2 ...
  • Validation of Puncture Simulations of Railroad Tank Cars Using FullScale Impact Test Data
    Validation of Puncture Simulations of Railroad Tank Cars Using Full-Scale Impact Test Data
    Carolan, Michael ;
    Perlman, Benjamin
    2018-05-16 | PDF
    The U.S. Department of Transportation’s Federal Railroad Administration (FRA) has sponsored a series of full-scale dynamic shell impact tests to railroad tank cars. Currently, there are no required finite element (FE) model validation criteria or procedures in the field of railroad tank car puncture testing and simulation. Within the shell impact t ...
  • Locomotive Crash Energy Management Coupling Tests 2018
    Locomotive Crash Energy Management Coupling Tests [2018]
    Llana, Patricia ;
    Jacobsen, Karina
    2018-04-18 | PDF
    This paper describes the results of the CEM equippedlocomotive coupling tests. In this set of tests, a movingCEM locomotive was coupled to a standing cab car. The primaryobjective was to demonstrate the robustness of the PBC designand determine the impact speed at which PBC triggering occurs.The coupling speed was increased for each subsequent test ...
  • Railroad Rails Containing ElectrodeInduced Pitting from Pressure Electric Welding
    Railroad Rails Containing Electrode-Induced Pitting from Pressure Electric Welding
    Luck, Blain R. ;
    Vigilante, Gregory N.
    2018-04-18 | PDF
    This paper describes the forensic evaluations of threerailroad rails containing electrode-induced pitting. Theseevaluations include: magnetic particle inspection tonondestructively detect cracks emanating from the pitting;fractography to study the fracture surfaces of the cracks;metallography to study the microstructure; analysis of chemicalcomposi ...
  • Rail Base Corrosion and Cracking Prevention Phase 2
    Rail Base Corrosion and Cracking Prevention: Phase 2
    Ritter, George W. ;
    Stuart, Cameron
    2018-04-09 | PDF
    EWI was engaged by the Federal Railroad Administration to research rail treatments to prevent rail base corrosion in corrosive environments. A coating system was selected in Phase 1 and recommended for field trials. In Phase 2, four railroads sponsored the acquisition of coated rail sets and three installed them in-track. The coating suffered from ...
  • Northeast Corridor PTC Radio Frequency Network Design
    Northeast Corridor PTC Radio Frequency Network Design
    Vieira, Paulo ;
    Gonzalez-Ruiz, Alejandro
    2018-04-01 | PDF
    In 2014, the Federal Railroad Administration (FRA) funded Transportation Technology Center, Inc.’s (TTCI) development of the 220 MHz radio frequency (RF) network design for the Interoperable Train Control (ITC) compliant Positive Train Control (PTC) systems along the Northeast Corridor (NEC), in the area between Boston and Washington, DC. This repo ...
  • Feasibility of Track Energy Metric Research Results
    Feasibility of Track Energy Metric : Research Results
    Ensco, Inc.
    2018-04-01 | PDF
    Identifying track locations with rapid degradation potential and derailment risks due to structural failure is important for the railroad industry. Among the tools used to identify degradation are Track Quality Indexes (TQIs), a track geometry-based metric to characterize overall track quality. However, TQIs generally do not reflect the effect of s ...
  • FullScale Shell Impact of a DOT105 Tank Car
    Full-Scale Shell Impact of a DOT-105 Tank Car
    United States. Federal Railroad Administration. Office of Railroad Policy and Development
    2018-04-01 | PDF
    On April 27, 2016, the Federal Railroad Administration (FRA) conducted a full-scale shell impact test of a DOT105A500W (DOT-105) tank car at the Transportation Technology Center (TTC) in Pueblo, CO. The shell of the car was struck at its mid-length by a 297,000 pound ram car equipped with a 12-inch by 12-inch impactor. The objective of this test wa ...
  • PTC Radio Frequency Network Design for Dense Urban Areas
    PTC Radio Frequency Network Design for Dense Urban Areas
    Vieira, Paulo ;
    Paudel, Yudhisthir
    2018-04-01 | PDF
    Transportation Technology Center, Inc., with funding from the Federal Railroad Administration, developed the radio frequency (RF) network design of the 220 MHz Positive Train Control (PTC) RF network for three selected dense urban areas: Chicago, Kansas City, and Dallas/Fort Worth. This included: 1) Generating the RF network design plan, including ...
  • Next Generation Track Circuits
    Next Generation Track Circuits
    Brosseau, Joe ;
    Kindt, Joel
    2018-04-01 | PDF
    The Federal Railroad Administration (FRA) sponsored a project, performed by the Transportation Technology Center, Inc. (TTCI), to investigate next generation track circuit concepts that could support future methods of train control. Future train control concepts are being investigated in which train separation will be controlled by alternative tech ...
  • PTC Test Facility Assessment and Laboratory Development Phase I
    PTC Test Facility Assessment and Laboratory Development : Phase I
    Brosseau, Joe ;
    Polivka, Alan
    2018-04-01 | PDF
    From May 1, 2016, through August 31, 2016, the Transportation Technology Center (TTC) assessed Class I Positive Train Control (PTC) test facilities, and held discussions with commuter and short line railroad representatives to recommend a project approach to implement an industry test laboratory for Interoperable Train Control (ITC) at TTC.
  • Autonomous Track Geometry Measurement Technology Design Development and Testing
    Autonomous Track Geometry Measurement Technology Design, Development, and Testing
    Saadat, Soheil ;
    Sherrock, Eric
    2018-03-01 | PDF
    The Federal Railroad Administration (FRA) Office of Research, Development and Technology has long advocated for the development and advancement of autonomous track geometry measurement systems (ATGMS) and related technologies to improve rail safety by increasing the availability of track geometry data. FRA’s ATGMS research program has demonstrated ...
  • Impact Test of a Diesel Multiple Unit Fuel Tank Research Results
    Impact Test of a Diesel Multiple Unit Fuel Tank : Research Results
    United States. Federal Railroad Administration. Office of Railroad Policy and Development  ...
    2018-03-01 | PDF
    On June 28, 2016, the Federal Railroad Administration’s (FRA) Office of Research, Development and Technology performed a dynamic impact test of a fuel tank from a Diesel Multiple Unit (DMU) rail vehicle with support from the Department of Transportation’s John A. Volpe National Transportation System Center. The test was performed at the Transportat ...
  • PTC Radio Desense Mitigation Research Phase 2 Filter Identification and Testing
    PTC Radio Desense Mitigation Research Phase 2: Filter Identification and Testing
    Nast, Thomas ;
    Hall, Thomas
    2018-03-01 | PDF
    The Federal Railroad Administration (FRA) sponsored a project, conducted by the Transportation Technology Center, Inc. (TTCI), to identify and evaluate 220 MHz radio filter technologies that are capable of meeting requirements developed for mitigation of 220 MHz Positive Train Control (PTC) radio desense for locomotives operating on and around the ...
    Supporting Files
  • Performance of No 20 Frogs of Various Designs in Revenue Service
    Performance of No. 20 Frogs of Various Designs in Revenue Service
    Jimenez, Rafael
    2018-02-01 | PDF
    Transportation Technology Center, Inc. (TTCI) tested and evaluated the performance of four No. 20 fixed-point frogs on the Norfolk Southern Railway (NS) track as part of the jointly funded Association of American Railroads (AAR) and Federal Railroad Administration (FRA) Heavy Axle Load (HAL) Revenue Service Test Program.
  • Unmanned Aircraft System Applications in International Railroads
    Unmanned Aircraft System Applications in International Railroads
    Sherrock, Eric ;
    Neubecker, Kelly
    2018-02-01 | PDF
    This report summarizes the current uses and issues associated with Unmanned Aircraft Systems (UAS) in railroad applications, and provides the use cases employed by railroads. The report highlights global UAS market outlooks as well as regulations that influence the use of this technology around the world. The report also provides an overview of iss ...
  • FullScale Shell Impact Test of a DOT117 Tank Car
    Full-Scale Shell Impact Test of a DOT-117 Tank Car
    United States. Federal Railroad Administration. Office of Railroad Policy and Development
    2018-02-01 | PDF
    On September 28, 2016, the Federal Railroad Administration (FRA) conducted a full-scale shell impact test of a DOT-117A100W (DOT-117) tank car at the Transportation Technology Center (TTC) in Pueblo CO. The shell of the car was struck at the mid-length by a 297,000 pound ram car, which was equipped with a 12-inch by 12-inch impactor. TTC test colle ...
  • Nuclear Magnetic Resonance Trackbed Moisture Sensor System
    Nuclear Magnetic Resonance Trackbed Moisture Sensor System
    Walsh, David O. ;
    Barrett, Brian
    2018-02-01 | PDF
    In this initial phase, conducted from March 2015 through December 2016, Vista Clara and its subcontractor Zetica Rail successfully developed and tested a man-portable, non-invasive spot-check nuclear magnetic resonance (NMR) moisture sensor that directly measured moisture on water content in railway ballast materials. All technical objectives were ...
  • 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 ...
  • Railroad Track Inspector Wearable Technology Interface
    Railroad Track Inspector Wearable Technology Interface
    Jones, Michael ;
    Kohli, Vijay
    2018-02-01 | PDF
    Conducting railroad track safety inspections requires constant vigilance to detect defects that could have dangerous consequences. It also requires information to be received and sent during the execution of the inspection task. A Wearable Technology Interface (WTI) could prove helpful in supporting hands-free, eyes-ontask communications for railro ...
421 - 440 / 1162