(a) 
The Traffic Engineer is authorized to determine the location of loading zones and passenger loading zones and shall place and maintain appropriate signs or markings indicating the same and stating the hours during which the provisions of this article and the Vehicle Code are applicable.
(b) 
Loading zones shall be indicated by yellow paint upon the top of all curbs in said zones. Yellow shall mean no stopping, standing or parking at any time between 7:00 a.m. and 6:00 p.m. of any day except Sundays and holidays for any purpose other than the loading or unloading of passengers or freight; provided, that the loading or unloading of passengers shall not consume more than 30 minutes and the loading or unloading of freight more than 20 minutes.
(c) 
Passenger loading zones shall be indicated by white paint upon the top of all curbs in said zones. White shall mean no stopping, standing or parking for any purpose other than loading or unloading of passengers, or for the purpose of depositing mail in an adjacent mailbox, which shall not exceed three minutes and such restrictions shall apply between 7:00 a.m. and 6:00 p.m. on any day except Sundays and holidays and except as follows: When such zone is in front of a hotel or in front of a mailbox, the restrictions shall apply at all times. When such zone is in front of a theater, the restrictions shall apply at all times except when such theater is closed.
(Ord. 34 § 4-3.1201, 1980)
(a) 
Permission granted in this article to stop or stand a vehicle for purposes of loading or unloading of freight shall not extend beyond the time necessary therefor, and in no event for more than 20 minutes.
(b) 
Permission granted in this article to stop or park for purposes of loading or unloading of passengers shall include the loading or unloading of personal baggage, but shall not extend beyond the time necessary therefor and in no event for more than three minutes.
(c) 
Within the total time limits above specified, the provisions of this section shall be enforced so as to accommodate necessary and reasonable loading or unloading but without permitting abuse of privileges granted by this chapter.
(Ord. 34 § 4-3.1202, 1980)
No person shall stop, stand or park a vehicle for any purpose other than the loading or unloading of passengers or freight in any alley.
(Ord. 34 § 4-3.1203, 1980)
The Traffic Engineer is authorized to establish bus stops, bus stands, taxicab stands and stand for other passenger common-carrier motor vehicles on such streets, in such places and in such number as he or she shall determine to be of the greatest benefit and convenience to the public, and every such bus stop, bus stand, taxicab stand or other stand shall be designated by appropriate official traffic-control devices.
(Ord. 34 § 4-3.1204, 1980)
No person shall stop, stand or park a vehicle other than a bus in a bus stop, or other than a taxicab in a taxicab stand, when any such stop or stand has been officially designated and appropriately signed, except that the driver of a passenger vehicle may temporarily stop therein for the purpose of and while actually engaged in loading or unloading passengers when such stopping does not interfere with any bus or taxicab waiting to enter or about to enter such zone.
(Ord. 34 § 4-3.1205, 1980)