Equipment; traffic counts; traffic diagrams for determining relative periods for signals at main and secondary road intersections; coordinated control; main road "stop" signs; "stop" and "go" signals; pedestrian-operated signals.
Signalling requirements for road traffic
Civ Eng (Lond)
Civil Engineering (London) ; 28 , n 319
1933
3 pages
Aufsatz (Zeitschrift)
Englisch
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