When such truck traffic routes or truck routes are established and designated by appropriate signs, it is unlawful for the operator of any moving van, dump truck, tank truck, used or designed for the purpose of transporting petroleum products, or any vehicle designed or used for the transportation of commodities or materials which vehicle exceeds a maximum gross weight of ten thousand pounds to operate the vehicle upon any street other than upon and over a truck traffic route or truck route for any purpose other than to make a pickup or delivery, or to service or secure repairs to the vehicle. In traveling to or from the: point of delivery, pickup service to or repair of the vehicle, the operator of the vehicle shall drive as far as possible upon and over a truck traffic route or truck route.
(Ord. 259 § 2, 1974)