Traffic control devices, geometrics, visibility, and route guidance
By: Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
Series: Transportation research record ;; 737
Publisher: National Academy of Sciences
Published: 1979
Place of publication: Washington, D.C
Language: eng
Number of pages: 121
Subjects: Electronic traffic controls.; Roads -- Lighting.; Traffic safety.; Roads -- Interchanges and intersections -- Design and construction.
Notes: Includes bibliographical references.