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

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

Automated System for Concrete Railroad Crosstie Transfer Length Measurement

Document Series
Research Results
Federal Railroad Administration
Report Number
RR 21-17
Subject Track
Infrastructure, railroad ties, strain sensor, optical, transfer length, shape factor, prestressed concrete, high speed rail

Kansas State University researchers produced two, fully functional, longitudinal strain measurement and transfer length assessment devices that address specific needs of the industry. The devices are: (1) an automated computer-controlled traversing device and (2) a 6-camera stationary strain field measurement system. In addition to controlled laboratory testing, they extensively field-tested both devices in actual tie plants. Performance results are compared here both in terms of longitudinal strain profile measurement capability and in the devices’ ability to accurately assess transfer length.

Last updated: Thursday, September 2, 2021