A.
All residential streets other than main traffic arteries shall be designed so as to:
(1)
Provide for the continuation of the principal streets in the adjoining subdivisions where reasonably required for harmonious development.
(2)
Discourage other than local traffic.
(3)
Provide for the proper projection when adjoining property is not subdivided, subject to any required access control strip where reasonably required for harmonious development.
(4)
Provide adequate separation by way of street design from other developments where such is reasonably required to avoid undue traffic on local residential streets.
(5)
Provide a marginal access road or reverse frontage with a buffer strip for planting or some other means of separation where the subdivision abuts thoroughfares where such marginal access road or reverse frontage is reasonably required to avoid interference with the flow of traffic on the thoroughfare or to preserve the value of property abutting on such thoroughfare.
(6)
Give adequate recognition to existing topography.
(7)
Be not only conducive to the proper development of the immediate subdivision but also in a manner which will not adversely affect the neighborhood.
B.
If a street does not maintain a straight course or alignment between its intersections with another street or streets and if the center line of one straight section thereof, when projected, makes a deflection angle between 10° and 60°, inclusive, with an adjoining straight section thereof, such section shall be connected by a curved street section having a center-line radius of not less than 75 feet. If such deflection angle is in excess of 80°, the curved street section shall have a center-line radius not less than 50 feet.