Cover image for Safety features of stop signs at rail-highway grade crossings
Safety features of stop signs at rail-highway grade crossings
Title:
Safety features of stop signs at rail-highway grade crossings
Author:
Sanders, James H.
Personal Author:
Publication Information:
Washington : Dept. of Transportation, Federal Highway Administration, Offices of Research & Development ; Springfield, Va. : for sale by the National Technical Information Service, 1978.
Physical Description:
2 v. : ill. ; 28 cm.
Series:
Report - Federal Highway Administration ; no. FHWA-RD-78-40.

Report - Federal Highway Administration ; no. FHWA-RD-78-41.

Report ; no. FHWA-RD-78-40.

Report ; no. FHWA-RD-78-41.
General Note:
Performed by BioTechnology, Inc., under contract no. DOT-FH-11-9192.

Final reports; v. 1. April 1978, v. 2. March 1978.
Contents:
v. 1. Executive summary.--v. 2. Technical report.
Holds: Copies: