The subdivider shall observe the following requirements and principles of land subdivision in the design of each subdivision or portion thereof.
A. 
In acting upon plats, the Planning Board shall require, among other conditions in the public interest, that the tract shall be adequately drained and the streets shall be of sufficient width and suitable grade and suitably located to accommodate the prospective traffic, to provide access for fire-fighting equipment to buildings and to be coordinated so as to compose a convenient system conforming to the Official Map, or if there is no Official Map, relating properly to the existing street system. Where the Planning Board, after hearing, has adopted portions of the Master Plan with proposals regarding the street system within the proposed subdivision, the Board may require that the streets shown conform in design and in width to the proposals shown on the Master Plan. No street of a width greater than 50 feet within the right-of-way lines may be required unless said street already has been shown on such Master Plan at the greater width or already has been shown in greater width on the Official Map.
B. 
The Planning Board shall further require that all lots shown on the plat shall be adaptable for the intended purposes without danger to health or peril from flood, fire, erosion or other menace.
C. 
If portions of the Master Plan contain proposals for drainage rights-of-way, schools, parks or playgrounds within the proposed subdivision or in its vicinity, or if standards for the allocation of portions of subdivisions for drainage rights-of-way, school sites, park and playground purposes have been adopted, before approving subdivisions the Planning Board may further require that such drainage rights-of-way, school sites, parks or playgrounds be shown in locations and of sizes suitable to their intended uses. The Planning Board shall be permitted to reserve the location and extent of school sites, public parks and playgrounds shown on the Master Plan or any part thereof for a period of one year after the approval of the final plat or within such further time as agreed to by the applying party. Unless during such one-year period or extension thereof the municipality shall have entered into a contract to purchase or instituted condemnation proceedings according to law for said school site, park or playground, the subdivider shall not be bound by the proposals for such areas shown on the Master Plan. This provision shall not apply to the streets and roads or drainage rights-of-way required for final approval of any plat and deemed essential to the public welfare.
A. 
The arrangement of streets not shown on the Master Plan or Official Map shall be such as to provide for the logical extension of existing streets and to provide for future access for remaining land areas.
B. 
Minor streets shall be so designed as to discourage through traffic.
C. 
Subdivisions abutting arterial streets shall provide a marginal service road or shall front buildings upon a minor street parallel to the arterial street and removed from it by the depth of a lot with a buffer strip for planting, or some other means of separation of through and local traffic as the Planning Board may determine appropriate.
D. 
The minimum right-of-way width shall be measured from lot line to lot line and shall be in accordance with the following schedule:
(1) 
Arterial streets: 80 feet.
(2) 
Collector streets: 60 feet.
(3) 
Minor streets: 50 feet.
(4) 
Marginal access streets: 40 feet.
(5) 
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 accommodate safely the maximum anticipated traffic, parking and loading needs.
E. 
No subdivision showing reserve strips controlling access to streets shall be approved.
F. 
Subdivisions that adjoin or include existing streets that do not conform to street widths as shown on the Master Plan or Official Map or that do not conform to the street width requirements of this chapter shall dedicate additional width along either one or both sides of such streets of substandard width. If the subdivision is along one side only, 1/2 of the required extra width shall be dedicated.
G. 
Grades of arterial and collector streets shall not exceed 4%. Grades on other streets shall not exceed 10%. However, the Planning Board shall have the right to require grades of not less than 10% where special conditions exist, provided such special conditions are set forth in writing upon the minutes of the Board. No street shall have a grade of less than 1/2 of 1%.
H. 
Street intersections shall be as nearly at right angles as circumstances will allow and in no case shall be less than 60°. The block corners at intersections shall be rounded at the curbline with a curve having a radius of not less than 20 feet.
I. 
A street intersection shall not be less than 125 feet removed from the nearest other street intersection.
J. 
The center line of a street shall cross an intersecting street as a straight line.
K. 
A tangent at least 100 feet long shall be introduced between reverse curves on arterial and collector streets.
L. 
When connecting street lines deflect from each other at any one point by more than 10°, they shall be connected by a curve with a center-line radius of not less than 100 feet for minor streets and 300 feet for arterial and collector streets.
M. 
All changes in grade shall be connected by vertical curves of sufficient length to provide a smooth transition and proper sight distance.
N. 
Streets designed to dead-end permanently more than 100 feet from an intersection shall provide a circular turnaround at the end with a right-of-way radius of 50 feet. Such streets shall not be longer than 400 feet from the intersection to their dead-end. Streets designed to dead-end temporarily shall be improved to the boundary of the subdivision.
O. 
No street shall have a name which duplicates the name of an existing street or is so simile; to the name of an existing street as to be easily confused with it. The continuation of an existing street shall have the same name.
A. 
Block length and width or acreage within bounding roads shall be such as to accommodate the size of lot required in the area by Chapter 341, Zoning, and to provide for convenient access, circulation, control and safety of street traffic.
B. 
In blocks over 1,000 feet long, pedestrian crosswalks may be required in locations deemed necessary by the Planning Board. Such crosswalks shall be 10 feet wide. Lots abutting such a crosswalk shall be treated as a corner lot.
C. 
For commercial, group housing or industrial use, the block size shall be sufficient in the judgment of the Planning Board to meet all area and yard requirements for such use.
A. 
All lots created by subdivision shall conform strictly to the requirements of Chapter 341, Zoning, as to area and dimensions and as to adequacy of space and grade to provide off-street parking requirements or other requirements specified by Chapter 341, Zoning.
B. 
Insofar as is practical, side lot lines shall be at right angles to straight streets and radial to curved streets.
C. 
Where extra width has been dedicated for widening of existing streets, lots shall begin at such extra-width line and all setbacks shall be measured from such line.
D. 
Each lot must front upon a public street at least 50 feet in width, except lots fronting on streets described in § 290-15D(4) and (5) of this article.
E. 
Where there is a question as to the suitability of a lot or lots for their intended use due to factors such as rock formations, drainage, flood conditions or similar causes, the Planning Board may, after adequate investigation, withhold approval of such areas.
A. 
In large-scale developments, easements along rear property lines or elsewhere for utility installations may be required by the Planning Board. Such easements shall be of the width and location determined by the Planning Board after consultation with the public utility companies or municipal departments concerned.
B. 
Where a subdivision is traversed by a watercourse, drainageway, channel or stream, there shall be provided a stormwater easement or drainage right-of-way conforming substantially with the lines of such watercourse, and such further width or construction, or both, as the Planning Board may deem adequate for the purpose.
Curbs, gutters, sidewalks, street pavements, fire hydrants, streetlights, shade trees, monuments, water mains, storm sewers, sanitary sewers and any other improvement that may be required shall be designed and constructed to conform to the specifications of the City Engineer.