Review of year's developments; traffic signals improve; "no parking" successful; pedestrian control; improved highway design; uniform traffic rules.
Traffic control developments in 1929
Roads Streets
Roads and Streets ; 70 , n 2
1930
Aufsatz (Zeitschrift)
Englisch
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Transport developments in 1929
Engineering Index Backfile | 1930
|Engineering Index Backfile | 1930
Engineering Index Backfile | 1930
Some transportation developments in 1929
Engineering Index Backfile | 1930
Electric equipment developments during 1929
Engineering Index Backfile | 1930
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