(a) Except when necessary to avoid conflict with other traffic, or in compliance with law or the directions of a police officer or official traffic-control device, no person shall:
(1) Stop, stand or park a vehicle:
a. On the roadway side of any vehicle stopped or parked at the edge or curb of a street;
b. On a sidewalk;
c. Within an intersection;
d. On a crosswalk;
e. Between a safety zone and the adjacent curb or within 30 feet of points on the curb immediately opposite the ends of a safety zone, unless a different length is indicated by signs or markings;
f. Alongside or opposite any street excavation or obstruction when stopping, standing or parking would obstruct traffic;
g. Upon any bridge or other elevated structure, upon a highway or within a highway tunnel;
h. On any railroad tracks;
i. At any place where official signs prohibit stopping.
(2) Stand or park a vehicle, whether occupied or not, except momentarily to pick up or discharge a passenger or passengers:
a. In front of a public or private driveway;
b. Within 15 feet of a fire hydrant;
c. Within 20 feet of a crosswalk at an intersection;
d. Within 30 feet upon the approach to any flashing signal, stop sign, yield sign or traffic-control signal located at the side of a roadway;
e. Within 20 feet of the driveway entrance to any fire station and on the side of a street opposite the entrance to any fire station within 75 feet of said entrance (when properly signposted);
f. At any place where official signs prohibit standing.
(3) Park a vehicle, whether occupied or not, except temporarily for the purpose of and while actually engaged in loading or unloading merchandise or passengers:
a. Within 50 feet of the nearest rail or a railroad crossing;
b. At any place where official signs prohibit parking.
(b) No person shall move a vehicle not lawfully under his control into any such prohibited area or away from a curb such a distance as is unlawful.