Traffic control, signals and other devices
Subtitle: highway safety, road user characteristics, traffic control and operations
By: Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
Series: Transportation research record ;; 597
Publisher: National Academy of Sciences
Published: 1976
Place of publication: Washington
Language: eng
Number of pages: 45
Subjects: Electronic traffic controls.; Traffic engineering.; Traffic safety.
Notes: Includes bibliographical references.