Traffic control for freeway maintenance.

Bibliographic Details
Corporate Authors:	National Research Council (U.S.). Highway Research Board, American Association of State Highway Officials, United States. Bureau of Public Roads
Format:	Book
Language:	English
Published:	[Washington], [publisher not identified] ; 1969.
Series:	Publication (National Research Council (U.S.)) ; no. 1743. Synthesis of highway practice ; 1.
Subjects:	Roads > Maintenance and repair > Safety measures. Traffic signs and signals.

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