Off-street parking facilities shall be subject to the following general provisions:
A.
The collective provision of off-street parking areas by two or more buildings or uses located on adjacent lots is permitted, provided that the total of such facilities shall not be less than the sum required of the various buildings or uses computed separately, and further provided that the land upon which the collective facilities are located is owned by one or more of the collective users.
B.
All parking areas and appurtenant passageways and driveways serving business uses shall be illuminated adequately during the hours between sunset and sunrise when the use is in operation. Adequate shielding shall be provided by business users to protect adjacent residential zones from the glare of such illumination and from that of automobile headlights.
C.
None of the off-street parking facilities that are required in this chapter shall be required for any existing building or use, unless said building or use shall be enlarged, rebuilt, reconstructed, altered or remodeled.
D.
When the computation of the number of required parking spaces results in a fraction, such fractions shall be resolved to the next highest whole number.
E.
Access aisles and driveways to parking areas shall be not less than eight feet in width in R-10, R-15, R-30 and R-40 Zones and not less than 12 feet in width in all other zones. Aisles and driveways within parking areas shall have a minimum width of: