Conversions: 1 mi/h 1.609 km/h, 1 ft 0.305 m.
Note: Values less than 2.0 ft may be disregarded. Multiply table values by 1.5 for three lanes and by 2.0
for four lanes.
Source: Location and Design Manual, Vol. 1, Roadway Design, Ohio Department of Transportation,
with permission.