In general, routes continue Chicago system outward from city limits; Edens Expressway to north has been completed for distance of 14 mi and Calumet Tri-State route extends 9 mi to south; other sections are in various stages of design and construction; map.
Cook county expressway plan
Traffic Eng
Traffic Engineering ; 22 , n 12
1952
Aufsatz (Zeitschrift)
Englisch
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