1. The City Council is hereby authorized to determine the location of passenger and freight curb loading zones, and shall have appropriate signs placed, indicating the same and stating the hours during which the provisions of this section are applicable. By the same authority, such loading zones may be changed or discontinued.
2. When such a loading zone is established upon the request of any person, firm or corporation, the City Council shall not have signs placed until the applicant has paid to the City Clerk an amount of money estimated by said City Council to be adequate to reimburse the city for all costs of establishing the signing of the same.
3. No person shall stop, stand or park a vehicle for any purpose or length of time other than for the expeditious unloading and delivery or pickup and loading of materials in any place marked as a freight curb loading zone, during hours when the provisions applicable to such zones are in effect.