The Department of Planning shall review and approve the internal traffic and pedestrian circulation system, landscaping, parking areas and additional characteristics of site design as deemed appropriate. Landscaping may include re-contouring, building of earth berms, vegetative covering, screening or other material alteration of the site as deemed appropriate to enhance areas outside the public right-of-way or to preserve the integrity of adjacent properties. Internal circulation shall include the location, nature, extent, construction and design of internal driveway lanes (including multiple-family access streets), parking lots, driveways to or through parking lots and any other facilities that provide vehicular access to buildings, structures and improvements upon a given lot or tract.