Traffic signals

National Research Council, Highway Research Board, USA

Annual meeting. Highway Research Board ; 52 ; 1973 ; Washington, DC

Highway research record ; 445

1973

46 S.

Ill., graph. Darst.
Includes bibliographical references
Digital preservation by Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek

0309021766

Conference Proceedings

Print

English

Traffic signs and signals , Electronic traffic controls

DDC:  388.3/12 / 625.7/08 s