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.

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

eLibrary

Interim Report: Influence of Contact Patch Resistance on Loss of Shunt

The railroad signal community and the grade crossing equipment suppliers have reported an increase in the occurrence of loss of shunt on railroad grade crossing island circuits, as confirmed through an October 1990 Association of American Railroads’ (AAR) survey of railroad signal officers. Loss...

Nationwide Study of Train Whistle Bans

A national study examined the accident histories of grade crossings with whistle bans. Findings suggest that whistle bans increase the risk of accidents at crossings.

Vehicle Proximity Alert System : Prototype 1

As part of FRA Task Order 114, the Association of American Railroads (AAR) Transportation Technology Center (TTC), Pueblo, Colorado, completed testing of Vehicle Proximity Alert System (VP AS) system 1. VP AS systems are designed to give priority vehicle operators (emergency, police, school...

Short Line Safety Institute: Safety Culture Growth Across Two Railroads

The Federal Railroad Administration (FRA) recognizes the importance and function of a strong safety culture to railroad safety. Since 2014, FRA’s Office of Research, Development and Technology (RD&T) has supported the American Short Line and Regional Railroad Association (ASLRRA) in its...

The Effectiveness of Railroad Horn Systems

The U.S. Department of Transportation, Research and Special Programs Administration, Volpe National Transportation Systems Center, in support of the Federal Railroad Administration is conducting a research program with the goal of reducing the number of accidents and resulting casualties at...