N.J. Admin. Code § Tit. 16, ch. 47 app D
D-1 Number of Driveways
a. All lots or sites eligible for access to a State highway may be approved for one or more two-way driveways, as set forth in paragraph b. Lots or sites located on AL 2 State highways with the ability to have non- State highway access to a street other than the State highway shall not have access to the State highway. On divided State highways, two one-way driveways may be substituted for a two-way driveway. On undivided State highways, two one-way driveways may be substituted for a two-way driveway with Department approval based on safety or operational considerations.
b. The number of driveways on a State highway shall be determined as follows:
1. For nonconforming lots, the maximum number of two-way driveways shall be one.
2. For a conforming lot or site, the number of two-way driveways shall be determined as follows:
i. For a lot or site requiring a minor permit, one shall be allowed.
ii. For a lot or site requiring a major permit, a maximum of two may be allowed if, as determined by the Department, the second driveway will benefit the safety and efficiency of the State highway and meets the requirements of paragraph b3 below.
iii. For a lot or site requiring a major with planning review permit, two or three may be allowed if the second and third driveways, as determined by the Department, will benefit the safety and efficiency of the State highway and meet the requirements of paragraph b3 below.
3. Requirements for more than a single two-way driveway for a lot or site requiring major or major with planning review permits are as follows:
i. Two may be allowed on a midblock lot or site which has a minimum of three times the spacing distance between the centerlines of each of the next adjacent non-single family residential lots. See Figure D-1. (L## + R## > 3 x S)
ii. Three may be allowed on a midblock lot or site that has a minimum of four times the spacing distance between the centerline of each of the next adjacent non-single family residential lots. See Figure D-1.(L## + R## > 4 x S)
iii. A maximum of two may be allowed on a corner lot or site that has at least three times the spacing distance between the centerline of the next adjacent non-single family residential lot on one side and on the other side to:
(a) The centerline of the adjacent side street; or
(b) The centerline of the side street frontage measured along the lot or site frontage, when non-State highway access is provided to that side street.
4. An emergency driveway shall not be counted as a driveway for the purpose of determining the number of driveways.
D-2 Location of driveways
a. The location of driveways shall be established using the Design Standards and Driveway
Design Parameters found at NJ.A.C. 16:47 Appendix E and safety considerations based on sight distance and other geometric requirements. b. Driveways, whether on a conforming or nonconforming lot or site, shall also be subject to the following requirements:
1. Whenever possible, unsignalized driveways on divided State highways for major traffic generators involving left-turns to a lot or site from a State highway and egress from a lot or site to a State highway should be located at existing median breaks. In such cases, the driveway should be lined up with the median break or be located 330 feet from the median opening. For new median openings, traffic signal spacing requirements must be met. (See N.J.A.C. 16:47 Appendix G.)
2. Whenever possible, on undivided State highways, access on both sides of the road shall be aligned. Where this is not possible, it is desirable to have the centerlines of driveways offset at least 200 feet.
3. No driveway shall be located along an acceleration, deceleration, or exclusive right-turn or left-turn lane where the lane is at its full width. This prohibition does not apply:
i. Along two-way left-turn lanes;
ii. To a right-turn-in only driveway from a divided State highway within the limits of a left-turn lane;
iii. To driveways on the opposite side of a State highway within the limits of a right-turn lane;
iv. To access to a lot zoned or used for a single family residential unit;
v. To the portion of a deceleration lane for a reverse loop jughandle that precedes a street intersection; or
vi. Along collector-distributor lanes.
4. No driveway shall be located along a ramp or a jughandle.
5. No new driveway shall be located within the inscribed circle area of a roundabout unless it is designed as an approach to the roundabout. No new driveway shall be located opposite the splitter island of a roundabout or within 50 feet of the end of the splitter island of a roundabout. Existing driveways located within the inscribed circle area of a proposed roundabout or within 50 feet of the end of the splitter island of a proposed roundabout will be evaluated on a case-by-case basis for safety and operational efficiency.
D-3 Location of new interchanges
a. A new interchange on a State highway segment shall be at least one mile from the nearest interchange on an urban State highway or at least two miles from the nearest interchange on a rural State highway. Designations for urban and rural State highways shall be found by using N.J.A.C. 16:47 Appendices A and B-2. The distance between interchanges shall be measured from the center point of each interchange which is defined as the midpoint of the extremities of the ramp system for the interchange.
b. A new interchange shall be separated from a signalized intersection by at least the minimum traffic signal spacing requirements found at N.J.A.C. 16:47 Appendix G. The distance shall be measured from the center point of the interchange to the center point of the intersection.
c. A new interchange may be permitted when at least one of the following conditions is met:
1. Two divided multi-lane accessible principal arterials cross;
2. If a traffic signal is installed at the location proposed for the interchange and the green time available would be less than 50 percent for accessible principal arterials or less than 40 percent for minor arterials;
3. A new at-grade signalized intersection at the same location would not provide LOS C or better for the through movement of the State highway during any peak period when the closest signalized intersections on the State highway on either side of the location are currently operating at LOS C or better for the through movement on the State highway;
4. An existing at-grade signalized intersection at the proposed location operates at overall LOS F during any peak period and there is no reasonable improvement that can be made to provide sufficient capacity;
5. The minimum through band widths for State highway traffic signal progression, as described in NJ.A.C. 16:47 Appendix G, cannot be maintained; or
6. A proposed major traffic generator will be served by an existing street intersection and it would not be feasible to provide effective traffic signal progression along the State highway for both the through traffic and the traffic which would be generated by the development.
d. Interchanges proposed to serve major traffic generators may be permitted only if a regional benefit to traffic movements can be demonstrated, and at least one of the following three conditions is met:
1. The major traffic generator is located along a State highway where left-turns or access directly onto the State highway are either prohibited by this chapter or would otherwise be undesirable as determined by the Department;
2. The traffic flows entering or leaving the traffic generator would reduce the highway green time per cycle for any traffic signal which would serve the traffic generator to less than 50 percent for accessible principal arterials and less than 40 percent for minor arterials; or
3. The location that would otherwise be signalized does not meet the traffic signal spacing criteria set forth in NJ.A.C. 16:47 Appendix G and signalization of the driveway or street would impede the progressive flow along the State highway.
N.J. Admin. Code Tit. 16, ch. 47 app D