Traffic control and guidance
Subtitle: 4 reports prepared for the 53rd annual meeting of the Highway Research Board.
Contributors: National Research Council (U.S.). Transportation Research Board.
Series: Transportation research record ;; 503
Publisher: Transportation Research Board, National Research Council
Published: 1974
Place of publication: Washington
Language: eng
Number of pages: 48
Subjects: Traffic engineering -- Addresses, essays, lectures
Notes: Includes bibliographical references.