Methods used by Traction and Subway Commission in checking travel for unified system. (2500 w.) (77999)
Chicago traffic, value and finances
Elec Ry Jl
1917
Charts
Article (Journal)
English
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Chicago regional traffic survey
Engineering Index Backfile | 1932
Chicago regional traffic survey
Engineering Index Backfile | 1932
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The Chicago traffic signal system
Engineering Index Backfile | 1928
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