Every person riding a bicycle upon a roadway shall be granted all of the rights and shall be subject to all of the duties applicable to the driver of a vehicle by the laws of this state declaring rules of the road applicable to vehicles or by the traffic ordinances of this city applicable to the driver of a vehicle, except as to special regulations in this chapter and except as to those provisions of laws and ordinances which by their nature can have no application. (Ord. No. 633, § 1.)