[Ord. No. 2018-11 § 4]
The following improvements shall be installed by the subdivider before final approval is granted, or such approval shall be conditioned upon the subdivider's furnishing of guarantees for the installation and maintenance of said improvements in accordance with Section 10B-133:
(a) 
Streets. All new streets shall be graded and surfaced in keeping with the specifications and standards approved by the Governing Body and on file in the office of the municipal engineer, and in accordance with the NJDOT Standard Specifications for Road and Bridge Construction (latest edition with all baseline document change incorporated). The minimum pavement section shall be two inches of bituminous concrete surface course, Mix I-5; over five inches of bituminous stabilized base course, Mix I-2; over five inches of compacted dense graded aggregate base course; over compacted subgrade to 95% standard proctor density.
Right of way and cartway widths shall be in accordance with the standards found in the Princeton Community Master Plan Appendix B-1.
(b) 
Street signs. Appropriate street signs meeting the MUTCD standards approved by the municipal engineer as to size and location shall be installed at the intersection of all streets.
(c) 
Shade trees. Shade trees shall be planted along each side of every new street at intervals, in types, sizes and locations according to standards adopted by the Governing Body on file in the office of the municipal engineer.
(d) 
Topsoil protection. No topsoil shall be removed from the site or used as spoil. Topsoil moved during the course of construction shall be redistributed within the area of the subdivision.
(e) 
Monuments. Monuments shall be of the size and shape required by N.J.S.A. 46:26A-1 et seq. and shall be placed in accordance therewith.
(f) 
Storm drains, sanitary sewers and utilities. Storm drains and sewers, culverts, sanitary sewers, septic tanks and all utilities shall be installed in each subdivision in accordance with standards approved by the municipal engineer and acceptable to the Governing Body. All such installations shall be connected with an approved system and shall be adequate for all present and probable future development of the subdivision.
(g) 
Curbs. Curbs shall be constructed and installed along all streets in accordance with the specifications adopted by the Governing Body and on file in the offices of the municipal clerk and the municipal engineer, as such specifications may be amended from time to time by the Governing Body; provided, that the Planning Board may waive this requirement as to curbs along streets or parts of streets where the street grade is 3.5% or less, but only if the Board finds that curbs are unnecessary, with regard to the proper channeling of waters, the elevation of adjoining lands, the permeability of adjacent soils and the ability of such soils to absorb water from street surfaces.
(h) 
Wired-served utilities. Distribution supply lines, services and street lighting supply facilities for electricity, telephone and other wire-served utilities shall be installed underground and in accordance with the specifications of the serving utility company and with the provisions of the applicable standard terms and conditions incorporated as a part of the company's tariff, as such are then on file with the state board of public utility commissioners; provided, that the utility company approves such installation. The subdivider shall request such installation of the serving utility company and shall submit to the Planning Board a written instrument from such company evidencing its disposition of such request. If approved and if so directed by the Planning Board, the subdivider shall arrange with the utility company for such underground installation. In connection with underground installations, the subdivider shall install street lighting standards of a type and in the manner approved by the Planning Board.
(i) 
Sidewalks. Sidewalks shall be constructed on both sides of any new road. On existing roads sidewalks shall be constructed and installed in conformance with the master plan except in cases where the Planning Board finds that such a sidewalk will neither (a) extend an existing sidewalk or one whose construction is imminent, nor (b) serve a substantial existing need regardless of connection to other sidewalks. In all cases where the Planning Board finds that sidewalks need not be constructed, the developer shall provide an in-lieu payment equal to the cost to the municipality of constructing the sidewalk. Sidewalks shall be constructed and installed in such other cases (whether or not shown on the master plan) where the Planning Board shall determine that the public safety or convenience will thereby be served by reason of:
(1) 
The actual or prospective density of population in the subdivision and surrounding areas:
(2) 
The size and character of the streets in the subdivision and their relation to the existing or prospective traffic pattern of the municipality; or
(3) 
The relationship of the subdivision to actual or prospective public service areas such as business districts, park or recreation areas or school sites and the actual or reasonable anticipated pedestrian or bicycle traffic generated or to be generated thereby.
Where sidewalks are required, sidewalks shall be a minimum of five feet wide and located as approved by the Board. Sidewalks shall be 4,500 psi concrete or an equivalent approved by the Board and shall be constructed in accordance with NJDOT specifications.
(j) 
Bicycle paths. Bicycle paths shall be constructed in conformance with the master plan except in cases where the Planning Board finds that such a bicycle path will neither (a) extend an existing bicycle path or one whose construction is imminent, nor (b) serve a substantial existing need regardless of connection to other bicycle paths. In all cases where the Planning Board finds that the bicycle path need not be constructed, the developer shall provide an in-lieu payment equal to the cost to the municipality of constructing the bicycle path. Bicycle paths shall be constructed and installed in such other cases (whether or not shown on the master plan) where the Planning Board shall determine that the public safety or convenience will thereby be served by reason of:
(1) 
The actual or prospective density of population in the subdivision and surrounding areas;
(2) 
The size and character of the streets in the subdivision and their relation to the existing or prospective traffic pattern of the municipality; or
(3) 
The relationship of the subdivision to actual or prospective public service areas such as business districts, park or recreation areas or school sites and the actual or reasonable anticipated pedestrian or bicycle traffic generated or to be generated thereby.
[Ord. No. 2018-11 § 4]
(a) 
All of the improvements listed in the preceding section shall be subject to inspection and approval by the municipal engineer, who shall be notified by the developer at least one business day prior to the start of construction. No underground installation shall be covered until inspected and approved.
(b) 
The cost of inspection by the municipal engineer shall be deemed part of the cost of such improvements and shall be borne by the developer and paid to the municipality in accordance with the provisions of Section 10B-32(d).