Citation

Gilleran BF. ITE J. 2006; 76(5): 22-25.

Affiliation

Office of Safety of the Federal Railroad Administration, Washington, DC, USA

Copyright

(Copyright © 2006, Institute of Transportation Engineers)

DOI

unavailable

PMID

unavailable

Abstract

The U.S. highway system frequently shadows the existing railroad network, resulting in numerous highway-rail grade crossing close to highway intersection. Highway traffic signals are used with active warning devices at some of these crossings. In some cases, the highway signal has been installed in front of the railroad warning devices. This is known as a pre-signal.

Language: en