Traffic control devices, visibility, and geometrics
By: Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
Series: Transportation research record ;; 681
Publisher: National Academy of Sciences
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 94
Subjects: Traffic signs and signals -- Congresses.; Visibility -- Congresses.; Roads -- Design and construction -- Congresses.; Traffic safety -- Congresses.
Notes: Includes bibliographical references.
Seventeen reports prepared for the 57th annual meeting of the Transportation Research Board.