Conversions: 1 mi/h 1.609 km/h, 1 ft 0.305 m.
Notes:
(A) There may be some rural locations that are urban in character. An example would be a village where
adjacent development and other conditions resemble an urban area. In such cases, urban design criteria may be
used.
(B) The number of lanes should be determined by a capacity analysis.
(C) May be 11 ft on nonfederal projects if design year ADT includes less than 25 (B) and (C) truck units.
(D) An 11-ft lane width may be retained on reconstructed highways if the alignment and safety records are
satisfactory.
Source: Location and Design Manual, Vol. 1, Roadway Design, Ohio Department of Transportation, with
permission.