(a) All commercial tractors, trailers, semitrailers and pole trailers and trucks in excess of 7,000 pounds gross weight shall be operated in the lane nearest the right-hand edge of the roadway upon all through highways when parking is prohibited in such traffic lane, otherwise in the lane of traffic immediately left thereof, provided that no such vehicle shall overtake and pass any other moving vehicle traveling in the same direction in the right-hand lane of any through highway, unless otherwise directed by a police officer or traffic control device or unless the lane nearest the right-hand edge of the roadway is otherwise marked.
(b) The provisions of this section shall not apply when commercial tractors, trailers, semitrailers and pole trailers and trucks in excess of 7,000 pounds gross weight are making an approach for a left turn or when the lane nearest the right-hand edge of the roadway or the lane immediately left thereof upon any through highway is not available for travel.
(Ord. 40-1960. Passed 2-15-60.)