Off-Street parking and loading requirements and regulations are established in order to achieve, among others, the following purposes:
(a) To prevent congestion so that streets can be utilized more fully for movement of vehicular traffic;
(b) To promote the safety and convenience of pedestrians and shoppers by locating parking areas so as to lessen car movements in the vicinity of intensive pedestrian traffic;
(c) To protect adjoining residential neighborhoods from on-street parking;
(d) To promote the general convenience, welfare and prosperity of business, service, research, production and manufacturing developments which depend upon off-street parking and loading facilities.