USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

eLibrary Search

Your Selections:

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?
Some "documents" may not appear here for the following reasons:

  • 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.
  • Document is historical and has been removed from library to avoid confusion with current publications.
  • 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.

28 Jun 2022

Other Reports

State Inventory Contacts - Grade Crossing Inventory

Author
Federal Railroad Administration

Subject Highway-Rail Grade Crossings

Keywords: crossing, inventory, state, contact

Office
RRS

16 Jun 2022

Research Results

Short Line Safety Institute: Identifying Safety Culture Trends in the Industry

Author
Federal Railroad Administration

Subject Human Factors

Keywords: Freight railroads, regional railroads, short line railroads, safety culture assessment, safety culture measurement, state of rail industry, human factors

Report Number
RR 22-09
Office
RPD-34

3 May 2022

Technical Reports

Centralized Interlocking for Moving Block Research Project

Author
Federal Railroad Administration

Subject Positive Train Control

Keywords: Centralized interlocking, CIXL, Quasi-Moving Block, QMB, Full Moving Block, FMB, Interoperable Train Control, ITC, Positive Train Control, PTC, Communications-Based Train Control, CBTC, train control

Report Number
DOT/FRA/ORD-22/18
Office
RPD-33

12 Apr 2022

Technical Reports

Intelligent Crossing Assessment and Traffic Sharing System (i-CATSS)

Author
Federal Railroad Administration

Subject Grade Crossing Technology, Highway-Rail Grade Crossings

Keywords: Crossing safety, crossing monitoring, first responders, delay time, train signal, artificial intelligence, train control

Abstract:

Researchers developed i-CATSS to detect and predict highway-rail blockages and provide first responders with real-time information of traffic conditions at crossings.

Report Number
DOT/FRA/ORD-22/15
Office
RPD-33

11 Feb 2022

Technical Reports

Acoustical Warning Device for Locomotive Horns

Author
Federal Railroad Administration

Subject Grade Crossing Technology

Keywords: Acoustic Warning Device, AWD, air horn, variable directivity, grade crossing, sound beam steering, speaker array, locomotive, detectability, noise reduction

Abstract:

This summarizes the R&D of a variable directivity Acoustic Warning Device (AWD) used as a locomotive horn and a GPS to control an arrangement of directional loudspeakers....

Report Number
DOT/FRA/ORD-22/08
Office
RPD-32