Traffic characteristics on Illinois highways
By: State of Illinois, Department of Transportation, Office of Planning, Programming, and Environmental Review
Contributors: Illinois. Department of Transportation. Office of Planning, Programming, and Environmental Review; United States. Federal Highway Administration; Illinois. Department of Transportation. Office of Planning, Programming, and Environmental Science; Illinois. Department of Transportation. Office of Policy and Planning; Illinois. Department of Transportation. Office of Planning and Programming
Publisher: The Office
Place of publication: [Springfield]
Language: eng
Subjects: Traffic surveys; Periodicals
Notes: Prepared in cooperation with U.S. Federal Highway Administration, <1971-1980>

Issued by: State of Illinois, Dept. of Public Works and Buildings, Division of Highways, Bureau of Planning, <1963->; State of Illinois, Dept. of Transportation, Office of Planning, Programming, and Environmental Review, <1971->; State of Illinois, Dept. of Transportation, Office of Planning, Programming, and Environmental Science, <1974->; State of Illinois, Dept. of Transportation. Office of Policy and Planning, <1976->; State of Illinois, Dept. of Transportation, Office of Planning and Programming, <1980->