A. The layout and construction of driveways, pump islands, etc., in connection with service stations, parking lots and similar installations shall in general comply with the standard street plan relative to service station layouts as compiled by the city engineer and designated as Engineering department General Specification, 1958. The location and size of driveways into stores, public garages, warehouses and similar places of business shall be as approved by the city engineer pursuant to the requirements of Chapter 12.40.

B. In no case, however, shall any such driveway be so arranged as to allow the loading or servicing of any vehicle on a public sidewalk.

C. The city engineer may vary the general requirements for driveways if in his opinion such a variance would facilitate a better movement of traffic or provide better protection to pedestrians.