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

Research Results

Ballast Degradation Characterized through Triaxial Testing

Transportation Technology Center, Inc. (TTCI) has supported the development of a large-scale triaxial test device for testing ballast size aggregate materials at the University of Illinois at Urbana-Champaign (UIUC). This new test equipment uses monotonic compression and repeated load testing to...

Prototype Next Generation Frog Foundation – Preliminary Evaluation

A frog foundation research project, jointly funded by the Federal Railroad Administration and Association of American Railroads, and conducted at the Facility for Accelerated Service Testing (FAST), tested a flexible frog crossing diamond prototype and it performed as intended.

2015 ROW Fatality & Trespass Prevention Workshop

Trespassing along railroad rights-of-way (ROW) is the leading cause of rail-related deaths. More than 500 preventable trespass fatalities and nearly as many injuries occur each year in the United States, and most of these incidents involve pedestrians. Based on the successful 2008[1] and 2012...