(a) The Arkansas Department of Transportation shall paint and maintain white stripes not less than four inches (4") in width on both edges of all hard-surfaced primary and secondary state roads with a pavement width of twenty feet (20') or more and carrying one thousand (1,000) or more vehicles daily, which roads are constructed in this state.
(b) The provisions of this section shall not apply to any noncontrolled-access roads in urban areas and any other state highway determined by an engineering study not to warrant such striping.