Activated advance warning for railroad grade crossings
Subtitle: final report
By: [Robert J. Ruden, Albert Burg, John P. McGuire (JGM Associates, Inc.)]
Contributors: Burg, Albert; McGuire, John P.; United States. Federal Highway Administration. Traffic Systems Division; JGM Associates
Series: Report / Federal Highway Administration -- no. FHWA/RD-80/003; Report (United States. Federal Highway Administration) -- no. FHWA/RD-80/003.
Publisher: U.S. Federal Highway Administration, Traffic Systems Division; Available through NTIS
Published: 1982
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Number of pages: 184
Subjects: Railroads; Crossings; Accidents; Traffic signs and signals
Notes: Cover title.

"July 1982."

Contract no. DOT-FH-11-9346.

Includes bibliographical references.