[Amended 11-4-2020 by Ord. No. 48-2020]
The subdivision plat shall conform to design standards that will encourage good development patterns within the municipality. Where either an Official Map or Master Plan, or both, has or have been adopted, the subdivision shall conform to the proposals and conditions shown thereon. The streets, drainage, rights-of-way, school sites, public parks and playgrounds shown on an officially adopted Master Plan or Official Map shall be considered in approval of subdivision plats. All subdivisions shall be such as to lend themselves to the harmonious development of the municipality and enhance the public welfare, in accordance with following design standards.
A. Streets.
(1) The arrangement of streets not shown on the Master Plan or Official Map shall be such as to provide for the appropriate extension of existing streets.
(2) Minor streets shall be so designed as to discourage through traffic.
(3) Subdivisions abutting arterial streets shall provide a marginal service road or reverse frontage with a buffer strip for planting or some other means of separation of through and local traffic as the Planning Board may determine appropriate.
(4) The right-of-way width shall be measured from lot line to lot line and shall not be less than the following
(a) Arterial streets: 80 feet.
(b) Collector streets: 60 feet.
(c) Marginal access streets: 40 feet.
(d) The right-of-way width for internal roads and alleys in multifamily, commercial and industrial developments shall be determined on an individual basis and shall, in all cases, be of sufficient width and design to safely accommodate the maximum traffic, parking and loading needs and maximum access for firefighting equipment.
(5) No subdivision showing reverse strips and controlling access to a street shall be approved, except where the control and disposal of land comprising such strips have been placed in the governing body under conditions approved by the Planning Board.
(6) Subdivisions that adjoin or include existing streets that do not conform to widths as shown on the Master Plan or Official Map or the street width requirements of this chapter shall dedicate additional width along either one or both sides of said road. If the subdivision is along one side only, 1/2 of the required extra width shall be dedicated.
(7) Grades of arterial and collector streets shall not exceed 4%. Grades on other streets shall not exceed 10%. No street shall have a minimum grade of less than 1/2 of 1%.
(8) Street intersections shall be as nearly at right angles as possible and in no case shall be less than 60°. The block corners at intersections shall be rounded at the curb line with a curve having a radius of not less than 20 feet.
(9) Street jogs with center-line offsets of less than 125 feet shall be prohibited.
(10) A tangent at least 100 feet long shall be introduced between reverse curves on arterial and collector streets.
(11) When connecting street lines deflect from each other at any one point by more than 10° and not more than 45° they shall be connected by a curve with a radius of not less than 100 feet for minor streets and 300 feet for arterial and collector streets.
(12) All changes in grade shall be connected by vertical curves of sufficient radius to provide a smooth transition.
(13) Dead-end streets (cul-de-sac) shall not be longer than 600 feet and shall provide a turnaround at the end with a radius of not less than 50 feet and a tangent, whenever possible, to the right side of the street. If a dead-end street is of a temporary nature, a similar turnaround shall be provided, and provisions made for future extension of the street and reversion of the excess right-of-way to the adjoining properties.
(14) No street shall have a name, which will duplicate or so nearly duplicate as to be confused with the names of existing streets. The continuation of an existing street shall have the same name.
B. Blocks.
(1) Block length and width or acreage within bounding roads shall be such as to accommodate the size of the lot required in the area by this chapter and to provide for convenient access, circulation control and safety of street traffic.
(2) In blocks over 1,000 feet long, pedestrian crosswalks may be required in locations deemed necessary by the Board. Such walkways shall be 10 feet wide and be straight from street to street.
(3) For commercial, group housing or industrial use, block size shall be sufficient to meet all area and yard requirements for such use.
C. Lots.
(1) Lot dimensions and area shall not be less than the requirements of this chapter.
(2) Insofar as is practical, side lot lines shall be at right angles to straight streets and radial to curved streets.
(3) Each lot must front upon an approved street at least 50 feet in width, except lots fronting on streets described in paragraphs A(4)(c) and (d) of this section.
(4) Where extra width has been dedicated for the widening of existing streets, lots shall begin at such extra width line, and all setbacks shall be measured from such line.
(5) Where there is a question as to the suitability of a lot or lots for their intended use due to factors such as rock formation, flood conditions or similar circumstances, the Planning Board may, after adequate investigation, withhold approval of such lots.
D. Public use and service area.
(1) In large-scale development, easements along rear property lines or elsewhere for utility installation may be required. Such easements shall be at least 15 feet wide and located in consultation with the companies or municipal departments concerned.
(2) Where a subdivision is traversed by a watercourse, drainage way, channel or street, there shall be provided a stormwater easement or drainage right-of-way conforming substantially to the lines of such watercourse and such further width or construction, or both, as will be adequate for the purpose.
(3) Natural features, such as trees, brooks, hilltops and views, shall be preserved whenever possible in designing any subdivision containing such features.