Traffic control devices for highways, work zones, and railroad grade crossings, 1990.
Contributors: National Research Council (U.S.). Transportation Research Board. Meeting
Series: Transportation research record ;; 1254
Publisher: Transportation Research Board, National Research Council
Published: 1990
Place of publication: Washington, D.C
Language: eng
Number of pages: 90
Subjects: Traffic signs and signals.; Roads -- Design and construction -- Safety measures.; Roads -- Maintenance and repair -- Safety measures.; Railroads -- Crossings -- Safety measures.
Notes: Includes bibliographical references.
Reports prepared for the 69th annual meeting of the Transportation Research Board, Jan. 1990.