Heavy Traffic On The Dan Ryan Expressway In Chicago Illinois. It Is The Busiest In The United States With 254,700 Vehicles Daily, According To Figures Released In March, 1975, By The Federal Department Of Transportation.

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Size: 2928px × 1953px
Photo credit: © Hum Historical / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1970s, cars, chicago, city, congestion, early, exhaust, expressways, photo, pollution, road, roads, streets, traffic, trucks