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eLibrary Search

The FRA eLibrary contains all the documents that are found throughout the FRA Public Website. Multiple pages on the website may link to the same eLibrary item based on its set of metatdata.

Can I find All FRA Documents in the Library?
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  • Document resides on an external site for the record of source, links to the document are provided in context but not in the library as FRA does not maintain this record. This document lives on another website.
  • Document has not yet been assigned keywords.
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  • Document is public affairs & policy related, such as press releases, speeches, testimony, or fact sheet. These press-related documents can now be found in the FRA Newsroom.
  • Document is related to rules and notices. This information can now be found on the Rulemakings search and the Notices search, respectively.
Refine Your Search

To search an exact document title or key phrase, place quotations around the text. Example: "U.S. Government Grade Crossing Research & Stakeholder Engagement" Entering keywords without quotations will search the eLibrary for all occurrences of the keywords.

3 Jun 2024

Technical Reports

Ballast Fouling Measurement Tool – Phase II

Author
Charles P. Oden, Carlton L. Ho, Aaron J. Rubin

Subject Research, Track

Keywords: Ground-penetrating radar, ballast, fouling, moisture

Abstract:

Researchers developed a second-generation RAdar Ballast Inspection Tool (RABIT) using ground-penetrating radar (GPR) for use by track inspectors. This system is much lighter (...

Report Number
DOT/FRA/ORD-24/22
Office
RDI-21

3 Jun 2024

Technical Reports

Mitigation of Differential Movement at Railway Transitions for U.S. High-Speed Passenger Rail and Joint Passenger/Freight Corridors

Author
Erol Tutumluer; Debakanta Mishra; James H. Hyslip; Huseyin Boler; Wenting Hou

Subject Research, Track

Keywords: Railway transitions; bridge approach; differential movement; high-speed passenger rail; freight rail; ballast; tie-ballast gap; settlement; transient response; numerical modeling

Abstract:

To address the need to minimize differential movement at railway transitions for joint high-speed passenger and freight routes in the U.S., this research study identified and...

Report Number
DOT/FRA/ORD-24/21
Office
RDI-21

23 May 2024

Reference Materials

Emergency Notification Systems Information Card

Author
Federal Railroad Administration

Subject Emergency Notification Systems

Keywords: ENS, grade crossing

8 Oct 2019

Technical Reports

Acoustical Warning Devices as Emergency Warning Systems, Phase 1

Author
Federal Railroad Administration

Subject Emergency Notification Systems, Grade Crossing Technology

Keywords: Emergency warning, train horn, trespassers, music masking sounds, reaction time, acoustic warning device

Abstract:

Acoustical warning devices are designed to warn trespassers of an approaching train. This study evaluated the urgency and detectibility of potential warning sounds.

Report Number
DOT/FRA/ORD-19/40
Office
RDI-23

17 Dec 2015

Reference Materials

ENS Penalty Schedule

Subject Emergency Notification Systems

Keywords: ENS, Penalty Schedule