(a) Each owner or holder of a certificate of public convenience and necessity shall provide a stand, depot or terminal at his place of business for off-street parking or garage space of sufficient size to accommodate each vehicle authorized by such certificate. For the purpose of this section, 200 square feet of lot or floor area, together with approved means of ingress and egress thereto, shall be deemed to be a minimum parking area or garage space for one vehicle.

(b) No taxistand shall be permitted on the streets within the city. It shall be unlawful for public vehicles to appropriate any portion of any city street as a location for storage, respite, convocation, assembly or staging when they are not employed in the carriage of persons or property or when awaiting or soliciting such employment without first having obtained a permit from the city manager.