313.43  Lateral or detour routes in cities.
  Any city located on the primary road system and in which the primary road extension as officially designated does not pass through the main part or business district of such city, may designate and mark a lateral or detour route in order to facilitate such primary road traffic as may desire to get into and out of such business district.
[C31, 35, §4755-c2; C39, §4755.34; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §313.43]