Iowa permanent continuous automatic traffic recorders, 1981-1990
By: prepared by Office of Transportation Inventory in cooperation with United States Department of Transportation, Federal Highway Administration.
Contributors: Iowa. Office of Transportation Inventory.; United States. Federal Highway Administration.
Publisher: Iowa Dept. of Transportation
Published: 1991
Place of publication: [Ames, Iowa]
Language: eng
Number of pages: 22
Subjects: Traffic surveys -- Iowa.; Traffic flow -- Iowa.
Notes: "February 1991."