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.
Minor streets shall be so designed as to discourage
through traffic.
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.
D. Marginal access streets: 40 feet.
E. The right-of-way width for internal roads and alleys
in multifamily, commercial and industrial development shall be determined
on an individual basis by the Planning Board, 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 fire-fighting
equipment and shall be designed and located in accordance with the
requirements of the City Engineer.
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 the road.
If the subdivision is along one side only, 1/2 of the required extra
width shall be dedicated.
Street intersections shall be as nearly at right
angles as is possible 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. Also, only one point
of access and one point of egress may be allowed each property except
where large frontages are present. In those latter cases, the City
Engineer shall advise the Planning Board as to the safety requirements
involved.
Corner clearances shall be maintained within
that area bounded by the lines of the intersecting street and a diagonal
joining the points on each street line distant 20 feet from the point
of intersection or, in the case of a rounded corner, at the point
of tangency. Within this area, no structure, wall, embankment, terrace,
porch, piazza, fence, hedge, vegetation or other obstruction, other
than shade trees trimmed to a distance of at least 10 feet above the
curbline, shall be permitted above a height of two feet above the
horizontal plane through the curbline.
Unless necessary to provide access to a lot
in separate ownership existing before the date of this chapter, no
driveway access to property or additional street intersection may
be permitted within sight triangles as specified herein.
Street jogs with center-line offsets of less
than 125 feet shall be prohibited.
A tangent at least 100 feet long shall be introduced
between reverse curves on arterial and collector streets.
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.
Dead-end streets (culs-de-sac) shall not be
longer than 600 feet and shall provide a turnaround at the end with
a radius of not less than 60 feet and 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.
No street shall have a name which will duplicate
as to be confused with the names of existing streets. The continuation
of an existing street shall have the same name.
Street pavement width for new streets shall
include the distance between curblines and for residential streets
shall be at least 36 feet in width. Street pavement width for urban
business and primary streets shall be as recommended by the City Engineer.
No subdivision showing reserve strips controlling
access to streets shall be approved except where the control and disposal
of land comprising such strips has been placed in the City Council
under conditions approved by the Planning Board.
No street shall have a minimum grade of less
than 0.5%.