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You searched for: Creator Indiana. State Highway Commission (1919-1953) Remove constraint Creator: Indiana. State Highway Commission (1919-1953) Holding Location B-WELLS Remove constraint Holding Location: B-WELLS Subject Geographic Subject: Calumet Region (Ill. and Ind.) Remove constraint Subject: Geographic Subject: Calumet Region (Ill. and Ind.) Subject Topical Subject: Traffic surveys Remove constraint Subject: Topical Subject: Traffic surveys

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  • Region of Chicago--Indiana section : truck traffic in 24 hours on a typical week-day during August, 1931
  • Region of Chicago--Indiana section : highway traffic in 24 hours on a typical week-day during August, 1931