In all residential zones, development bounded by any arterial or collector street shall control access to said streets by having all driveways intersect minor streets. Where the size, shape, location, or some other unique circumstance may dictate no other alternative than to have a driveway enter an arterial or collector street, the lot shall provide on-site turnaround facilities so it is not necessary to back any vehicle onto an arterial or collector street, and abutting lots shall share a common access drive. All lots requiring reverse frontage shall have an additional 25 feet of depth to allow for the establishment of the buffers outlined below unless such buffers are established in a reserve strip controlled by the Township or county. That portion of the development abutting an arterial or collector street right-of-way shall either be planted with nursery grown trees to a depth of not more than a twenty-five-foot buffer strip along the right-of-way line and for the full length of the development so that in a reasonable period of time a buffer area will exist between the development and the highway, or, where topography permits, earthen berms may be created at a sufficient height to establish a buffer between the development and the highway. Berms shall not be less than five feet in height, they shall be stabilized by ground cover to prevent soil erosion and shall be planted with evergreens and deciduous trees according to a landscaping plan so as to be designed to have no adverse effect on nearby properties. All trees shall be of nursery stock having a caliper of not less than 2 1/2 inches measured three feet above ground level and be of an approved species grown under the same climatic conditions as at the location of the development. They shall be of symmetrical growth, free of insect pests and disease, suitable for street use, and durable under the maintenance contemplated.