Traffic control devices and rail-highway crossings.
Contributors: National Research Council (U.S.). Transportation Research Board.
Series: Transportation research record ;; 1069
Publisher: Transportation Research Board, National Research Council
Published: 1986
Place of publication: Washington, D.C
Language: eng
Number of pages: 125
Subjects: Traffic signs and signals -- Congresses.; Railroads -- Crossings -- Congresses.
Notes: Includes bibliographies.