Iowa Speed Study 1972 prepared by Iowa State Highway Commission, July 1972

(1972) Iowa Speed Study 1972 prepared by Iowa State Highway Commission, July 1972. Transportation, Department of

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Abstract

The Iowa State Highway Commission conducted speed studies during the month of July 1972, at 24 locations. Normally 25 locations are surveyed, but because of road construction, one station was omitted. Twenty of the stations are located on Primary highways and five are situated on the Interstate System. At four of the locations, data was also obtained during the nighttime. In the past, data had been collected semi-annually through 1967; and in 1968, studies were made at each station during the months of May, July and October. The general locations of the 25 annual speed check stations are illustrated on an Iowa map, shown on Page 4. Since the area at Station 81 was becoming urbanized, it was relocated south to a more rural location at the Port Neal Landing interchange.