The following minimum standards shall be required
for all streets other than county or state roads and highways constructed
in the Township. Such standards shall apply to the construction of
new streets and to the improvement of existing streets abutting the
portion of the tract to be subdivided or the site to be developed.
A. Horizontal alignment. Horizontal alignment shall have:
|
|
Dimension
|
---|
|
Street Class
|
Minimum Center Line Radius (feet)
(feet)
|
Minimum Tangent Between Reverse Curves
(feet)
|
Intersection Radius (curb returns)*
(feet)
|
---|
|
Major Collector
|
600
|
200
|
40
|
|
Minor Collector
|
500
|
160
|
30
|
|
Local
|
300
|
120
|
25
|
|
* Note: Minimum intersection radius shall be
determined by the highest street class in the intersection, and the
right-of-way line shall be concentric thereto.
|
B. Vertical alignment.
(1) Vertical alignment shall have:
(b)
Maximum grade of 6%; 8% on local streets.
(c)
Maximum grade for less than 200 feet may exceed the provisions of Subsection
B(1)(b).
(d)
Maximum grade within 100 feet of a right-of-way
intersection of 4%.
(2) All changes in grade shall be connected by vertical
curves.
(3) The length (L) in feet of a vertical curve shall be
related to the algebraic difference in the percent of grade (A) and
a constant, according to the following formula:
|
L = KA
|
---|
|
The minimum K values shall be as follows:
|
|
Street Class
|
Crest Curve
|
Sag Curve
|
---|
|
Major collector
|
145
|
100
|
|
Minor collector
|
65
|
60
|
|
Local
|
28
|
35
|
|
Intersection (stop conditions)
|
3
|
3
|
C. Stopping sight distances. Stopping sight distances,
based on the height of the driver's eye being three and three-quarters
feet above the road surface and the height of the object being five-tenths
feet above the road surface, shall be at least:
|
Street Class
|
Sight Distance
(feet)
|
|
---|
|
Major collector
|
350
|
|
|
Minor collector
|
275
|
|
|
Local
|
200
|
|
D. Street patterns. Street pattern shall conform with
the following provisions:
(1) The street and highway layout shall conform to the
Master Plan and the Official Map and shall provide appropriately located
street taps or stub streets to adjacent areas.
(2) Where a higher level of government requires a wider
street, that standard shall be met. Otherwise, the following shall
be minimum widths:
Street Class
|
Right-of-Way
(feet)
|
Maximum Average Daily Traffic Volume
|
Design Speed
(mph)
|
Pavement Width
(feet)
|
---|
Major Collectors
|
80
|
Above 8,000
|
50
|
48
|
Minor Collectors
|
60
|
800 to 8,000
|
40
|
36
|
Locals:
|
|
|
|
|
|
Class I
|
50
|
Less than 800
|
30
|
30
|
|
Class II
|
50
|
Less than 800
|
30
|
26
|
Alleys
|
(not permitted)
|
(3) The street pattern within a subdivision shall be orderly.
(4) Local streets shall be laid out so that their use
for through traffic will be discouraged. Particular attention should
be given to eliminating possible bypasses around traffic signals and
major intersections.
(5) In any business zone, a street or service road paralleling
Route 57 shall be installed and improved to municipal road standards
to assist in the distribution of traffic to signalized intersections
minimizing left turn conflicts.
[Amended by Ord. No. 10-93]
E. Block dimensions.
(1) Maximum length shall be 2,000 feet.
(2) Minimum width shall relate to the zoning district
requirements for lot sizes and yards and generally shall provide for
two tiers of lots.
(3) Special attention shall be given to blocks in industrial
and business districts to provide for access to the lots and for parking
and truck delivery.
F. Culs-de-sac.
(1) Maximum length shall be 1,500 feet or adequate to
accommodate 25 lots, whichever is less.
(2) Minimum radius for the right-of-way at the turnaround
shall be 60 feet, and the outside curb radius shall be 50 feet.
(3) Culs-de-sac shall be placed at the end of all stub
or otherwise dead-end streets, whether or not the street is to be
extended as part of a future subdivision or section thereof.
(4) Where a cul-de-sac is of a temporary nature, provision
shall be made for future extensions of the street and reversion of
the excess right-of-way to the adjoining properties.
G. Intersections.
(1) No more than two streets shall intersect or meet at
any one point.
(2) Streets shall intersect either perpendicularly or
radially except where, due to peculiar existing conditions, this cannot
be achieved, in which case they shall intersect or meet at an angle
of less than 75° or more than 105°.
(3) The center lines of all streets entering an intersection
shall pass through a single point.
(4) Intersections on local and minor collector streets
shall be spaced a minimum of 150 feet apart, measured from the points
of intersection of the center lines.
(5) Intersections on other than local and minor collector
streets shall be spaced a minimum of 800 feet apart, measured from
the points of intersection of the center lines.
(6) In regulating subdivisions, these provisions shall
be considered the minimum requirements generally consistent with the
public welfare. The Planning Board, in consultation with the Township
Engineer, shall modify or extend these provisions in appropriate cases
as may be deemed necessary for the public good. Modifications to these
standards shall be based on A Policy on Design of Urban Highway's
and Arterial Streets, latest edition, published by the American Association
of State Highway Officials, or on other published basis.
(7) Standards for all other roads shall be determined
by the appropriate authorities.
Curbing and construction types for street improvements
shall be in accordance with the following requirements:
A. Paving construction:
(1) All streets and roads for public use in the Township
shall conform to the subdivision requirements of this chapter, except
that the improvements of existing roadways may be modified by the
Township Committee upon recommendation of the Township Engineer.
(2) All roadways shall have as a minimum the following
cross-section characteristics:
(a)
Crown, widths 36 feet and less, seven-foot parabolic.
(b)
Widths more than 36 feet, a crossfall of 2%,
except that four feet adjacent to the curb, there shall have be a
crossfall of 4%.
(c)
Curb, seven-inch exposed face.
(d)
Sidewalk area, slope of 1/4 inch per foot rising
from curb to right-of-way line, whether sidewalks are or are not installed.
(e)
Side slopes, beginning at right-of-way line,
desirable maximum, 4:1, absolute maximum, 2:1 only with the approval
of Township Engineer due to exceptional conditions.
(f)
Rock cuts, as determined by engineering analysis.
B. Pavement materials. Roadway pavements shall be constructed
of the following materials:
|
Class of Roadway
|
Pavement Type FA-BC
(inches)
|
Bituminous Stabilized Base Course
(inches)
|
Subbase Type 5, Class A
(inches)
|
---|
|
Major collector
|
3 FA-BC-2
|
5
|
4
|
|
Minor collector
|
3 FA-BC-2
|
5
|
4
|
|
Local, Class I
|
2 FA-BC-1
|
5
|
2
|
|
Local, Class II
|
2 FA-BC-1
|
4
|
2
|
C. Curb construction.
(1) Curb construction shall be in conformance with the
New Jersey Department of Transportation construction details, shall
be of gray concrete and shall have an exposed face of seven inches.
The materials and methods of construction shall be as described in
Division 5, Section 5, of the Standard Specifications, as amended.
(2) These provisions shall be considered minimum requirements
generally consistent with the public welfare. The Township Engineer
shall modify or extend these provisions in appropriate cases as may
be deemed necessary for the public good.