1113.05 HORIZONTAL ALIGNMENT.
   The radius of curvature on the centerline of streets shall not be less than the following:
 
 
Street Classification
Minimum Radius of Curvature
Arterial street
500 feet
Collector street
300 feet
Local street
100 feet
   When there is an angle of deflection of more than one (1) degree between two (2) centerline tangent sections of a street, a curve of adequate radius shall connect them. Between reverse curves a minimum tangent of 100 feet shall be introduced. Minimum horizontal visibility, measured on the centerline, shall be:
 
 
Street Classification
Minimum Horizontal Visibility
Arterial street
500 feet
Collector street
300 feet
Local street
150 feet