Authors: C.L. DuVivier, L.M. Rogers, W. Sheffeld, H.J. Foster

Date of Publication:  December 1977

Sponsoring Agency:  U.S. Dept. of Transportation - Federal Highway Administration, Office of Research and Development

Performing Organization: Storch Engineers

Report No: FRA/ORD-77/45.I

Abstract:

The results of a recent study of railroad-highway grade crossing warning system technology are presented.  Emphasis in the investigation was placed on the determination of the potential for significant reduction in equipment, installation and maintenance costs through improvements sought within a framework of the basic (track circuit) system concepts now prevalent.  This study conprises a comprehensive survey of current practices and hardware, an analysis of all major cost elements, and a consideration of potentially beneficial technical changes.  The effort is concentrated on the equipment involved in train detection and the activation of warning devices.  Special attention is given to European practices.  The applicability of European signal relays and of mercury-wetted reed relays to the North American situation is analysed.
 

No. of Pages:  177