Access to the site may be provided via the internal circulation of a subdivision, shopping center, an office complex, or similar group of buildings having access in accordance with an approved access plan. No additional direct access shall be provided to the site from a public street intended to carry through traffic over and above those entrances, which may exist to provide access to the shopping center, office complex or similar group of buildings. Access through the side or rear setback is encouraged, if the access is safe, internal, and generally perpendicular to the setback.