Motorist aid systems.
Contributors: Highway Research Board.; National Research Council.; National Academy of Sciences.
Series: National Cooperative Highway Research Program -- 7
Publisher: Highway Research Board
Published: 1971
Place of publication: Washington, D.C
Language: eng
Number of pages: 28
Notes: Research sponsored by the American Association of State Highway Officials in cooperation with the Federal Highway Administration.

Project 20-5 FY '70.

Includes bibliographic references.