A. All entrance and exit driveways shall be located to afford maximum safety to traffic, to provide for safe and convenient ingress and egress to and from the site and to minimize conflict with the flow of traffic.
B. Where a site occupies a corner of two (2) intersecting roads, no driveway entrance or exit shall be located nearer to the intersection than a point, as measured along the traveled cartway center line, a distance of eighty (80) feet from the intersection point of the center lines of the traveled cartwayS, unless otherwise approved by the Board of Supervisors. In the case of four-lane roadways, measurement shall be made from the center line of the lanes traveling one (1) direction (i.e., center line of northbound lanes, etc.).
C. No entrance or exit driveway shall be located on a rotary, a ramp of an interchange or within twenty (20) feet of the beginning of any ramp or other portion of an interchange.
D. In any nonresidential district, where two (2) or more driveways or two (2) or more access points (curb cuts) for a single driveway connect a single site to any one (1) road, a minimum clear distance of two hundred (200) feet measured along the right-of-way line shall separate the closest edges of any two (2) such driveways or access points. Where such development fronts on an arterial street, access to parking and service areas, where practicable, shall be provided by a single access to the arterial street.
E. In any residential district, where development fronts on any arterial or collector STREET and two (2) or more driveways or two (2) or more access points (curb cuts) for a single driveway connect a single site to any one (1) road, a minimum clear distance of two hundred (200) feet measured along the right-of-way line shall separate the closest edges of such driveways or points of access.
F. All driveways shall be constructed in such a manner as not to impair drainage within the highway right-of-way, alter the stability of the roadway subgrade or materially change the drainage of adjacent areas. Where open shoulders or berms exist, the grade of a paved access driveway(s) shall slope away from the highway pavement at the same rate as the existing shoulder (unless advised to the contrary by the Township Engineer) for the prevailing width of the shoulder. The gradient of a driveway beyond this point (within the highway right-of-way) shall not be less than one-half (1/2) inch per foot.
G. Driveway ramps may extend from the face of the curb up to the outer edge of the sidewalk area in those cases where a planted area occurs between multiple driveways. The rate of slope for such driveway ramps preferably should not exceed one (1) inch per foot. Where conditions are such that the one (1) inch per foot slope is not obtainable, the sidewalk area of the driveway may be lowered sufficiently to obtain the allowable ramp slope and the sidewalk may be warped up to meet the normal sidewalk grade at a rate of slope not to exceed three-eighths (3/8) inch per foot.
H. Where a drainage ditch or swale exists, adequate pipe shall be installed under the driveway (by the permittee) in accordance with PENNDOT specifications. Minimum diameter of such drainage pipe shall be fifteen (15) inches unless otherwise specified by the TOWNSHIP Engineer. Under no circumstances shall the diameter of such drainage pipe be less than twelve (12) inches. [Amended 5/12/2008 by Ord. No. 390]
I. In residential districts, where a lot abuts two (2) or more streets, access to the lot shall be provided to the street where there is lesser potential for traffic congestion.
J. Driveway angle.
1. Two-way operation. DRIVEWAYS used for two-way operation shall intersect the road at an angle to as near ninety degrees (90°) as site conditions will permit and in no case will be less than seventy-five degrees (75°).
2. One-way operation. DRIVEWAYS used by vehicles in one (1) direction of travel (right turn only) shall not form an angle smaller than forty-five degrees (45°) with a road unless acceleration and deceleration lanes are provided.
K. Sight distances.
1. Any exit DRIVEWAY or driveway lane shall be so designed in profile and grading and located to provide the following minimum sight distance measured in each direction to the greatest degree possible. The measurements shall be from that portion of the exit driveway that is immediately outside the edge of the road right-of-way at a height of thirty (30) inches above the driveway surface.
|
Allowable Road Speed (mph) |
|
Required Sight Distance (feet) |
|
|
|
|
|
25 |
|
150 |
|
|
|
|
|
30 |
|
200 |
|
|
|
|
|
35 |
|
250 |
|
|
|
|
|
40 |
|
300 |
|
|
|
|
|
45 |
|
350 |
|
|
|
|
|
50 |
|
400 |
|
|
|
|
|
55 |
|
450 |
L. Interior drives shall be paved with an all-weather surface and drain in conformance with the requirements of this Chapter.
