In connection with development of highway design standards, traffic Department of California Div of Highways conducted state wide speed survey on state highways during Oct 1956; data on car, truck, and bus traffic shown on charts representing result of 35,439 individual observations of vehicular speeds under free flowing traffic conditions.
Higher speeds on modern highways
Automotive Industries
Automotive Industries ; 116 , n 9
1957
2 pages
Aufsatz (Zeitschrift)
Englisch
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