This article establishes appropriate standards
for the improvement of local roads and the design of streets serving
residential and nonresidential projects. The purpose is to:
A.
Promote the safety and convenience of vehicular traffic.
B.
Protect the safety of neighborhood residents.
C.
Minimize costs for maintenance and repair of infrastructure.
D.
Protect residential neighborhood quality by limiting
traffic.
E.
Maintain the rural character of the local roads while
providing for safety improvements.
[Amended by Ord. No. 98-11]
The following streets are classified as indicated:
|
Street Name
|
Township Classification
|
ROW/Cartway
|
|---|---|---|
|
Route 202
|
Arterial
|
See Note 1
|
|
Route 29
|
Arterial
|
See Note 1
|
|
Route 31
|
Arterial
|
See Note 1
|
|
Route 179
|
Arterial
|
See Note 1
|
|
Route 518
|
Arterial
|
See Note 2
|
|
Route 579
|
Arterial
|
See Note 2
|
|
Route 601
|
Collector
|
See Note 2
|
|
Route 603
|
Local road
|
See Note 2
|
|
Proposed Mt. Airy Bypass East
(Route 601/Route 605 Link)
|
Collector
|
See Note 2
|
|
Route 605
|
Collector
|
See Note 2
|
|
Proposed Route 518/Route 179 Link
|
Collector
|
See Note 3
|
|
Proposed Mt. Airy Bypass West
|
Collector
|
See Note 3
|
|
Gulick Road
|
Collector
|
See Note 3
|
|
Rocktown-Lambertville Road
|
Collector
|
See Note 3
|
|
Linvale/Marshall's Corner Road
|
Collector
|
See Note 3
|
|
Other Township streets
|
Local road
|
See Note 3
|
|
NOTES:
| |
|---|---|
|
1
|
NJDOT Jurisdiction
|
|
2
|
Hunterdon County Jurisdiction
|
|
3
|
Township Standard
|
A.
The arrangement of streets shall conform to the circulation
plan of the Master Plan or Official Map for the community.
B.
For streets not shown on the Master Plan or Official
Map, the arrangement shall provide for the appropriate extension of
existing streets.
C.
Streets shall be arranged so as to discourage through
traffic and provide for maximum privacy.
A.
Street classification.
(1)
In the design of residential and nonresidential projects,
the following street hierarchy shall apply:
|
Classification
|
Order
| |
|---|---|---|
|
Arterial
|
4
| |
|
Collector
|
3
| |
|
Residential subcollector or existing local road
|
2
| |
|
Residential access or existing local road
|
1
|
(2)
Street classifications shall be determined by consulting
the functional street classification and applying the ADT requirements
given in this article. Refer to Exhibit 3 for typical street cross
sections.[1]
[1]
Editor's Note: Exhibit 3 is included at the end of this chapter.
B.
All street terminations shall occur at intersections
with streets of equal or higher order.
C.
Whenever feasible, new street systems shall be designed
to discourage increases of through traffic along existing local roads.
In addition to frontage improvements, the Planning Board may require
a contribution to or construction of safety improvements identified
by the Township Engineer and impacted by the proposed development.
D.
Future road connections to adjoining properties may
be required by the Planning Board. Such connections shall be evaluated
by the Planning Board as to the appropriate road classification and
alignment so a coherent street plan develops within the Township.
E.
Collector roads shall be through streets with the
following exceptions:
(1)
The collector road must be part of a future Master
Plan road system and will serve no more than 50 residential units
and provide at least one connection to a street of equal or higher
order.
(2)
If only one connection is feasible to a street of
equal or higher order and more than 50 residential units are served
or the street occurs as part of a planned residential development,
then a boulevard design will be required, having a center median.
F.
Maximum cul-de-sac length shall be 1,000 feet. Boulevard
segments shall not be counted when computing overall cul-de-sac length.
[Amended by Ord. No. 98-11]
[Amended by Ord. No. 98-11]
A.
Residential access streets are the lowest order of
residential streets, intended to carry the least traffic at low speeds.
Preferred frontage and access to residential units. Loop streets and
cul-de-sac arrangements are encouraged. Maximum ADT shall be 250 for
cul-de-sac streets and 500 for loop streets. On-street parking permitted.
B.
Design criteria.
(2)
Design speed: 25 miles per hour.
(3)
Right-of-way: 50 feet.
(4)
Cartways: 26 feet in the R-2 and R-3 Zones; 30 feet
in all other zones.
(5)
Horizontal curve radius: 200 feet minimum.
(6)
Tangent length: 50 feet minimum.
(7)
Vertical curve length: K=25, where K is the minimum
length of the vertical curve required for each one-percent change
in vertical grade.
(8)
For streets with stop control, the maximum grade at
an intersection shall not exceed 4% within 25 feet of the projected
gutterline of the intersecting street.
[Amended by Ord. No. 98-11]
A.
Residential subcollectors are intended to connect
the residential access streets with collector and arterial streets.
Residential frontage and driveway access is acceptable. Interneighborhood
traffic should be feasible without entering collector or arterial
streets. The maximum ADT shall not exceed 500 for road systems with
only one outlet. Subcollectors with terminations to streets of equal
or higher order at both ends shall not have an ADT greater than 1,000.
B.
Design criteria.
(2)
Design speed: 30 miles per hour.
(3)
Right-of-way: 50 feet.
(4)
Cartway: 30 feet.
(5)
Horizontal curve radius: 350 feet.
(6)
Tangent length: 100 feet minimum.
(7)
Vertical curve length: K=30, where K is the minimum
length of the vertical curve required for each one-percent change
in vertical grade.
(8)
For streets with stop control, the maximum grade at
an intersection shall not exceed 4% within 50 feet of the projected
gutterline of the intersecting street.
A.
This street conducts and distributes traffic between
lower-order streets and the arterial streets. The function is larger
volume than subcollectors at higher speeds. Residential driveways
shall be minimized in favor of access to lower-order streets. Shared
driveway entrances between adjoining lots shall be required.
B.
Design criteria.
(2)
Design speed: 35 to 40 miles per hour.
(3)
Right-of-way: 60 feet (except boulevard).
(4)
Cartway: 36 feet (except boulevard).
(5)
Horizontal curve radius: 600 feet minimum.
(6)
Tangent length: 200 feet minimum.
(7)
Vertical curve length: K=50, where K is the minimum
length of the vertical curve required for each one-percent change
in vertical grade.
(8)
Parking shall be sufficient to provide three spaces
per residence. At least two spaces shall be provided off-street, not
including garage.
[Amended by Ord. No. 98-11]
(9)
For streets with stop control, the maximum grade shall
not exceed 3% within 75 feet of the projected gutterline of the intersecting
street.
(10)
When unusual on-street parking or intersection
requirements are expected, right-of-way and cartway width may be increased
by the Planning Board upon recommendation of the Township Engineer.
C.
Boulevard criteria. Same criteria applies except for
the following:
[Amended by Ord. No. 98-11]
A.
Local roads are designated existing Township streets
serving rural and low-density areas. The rural character of the street
shall be preserved, but safety improvements shall be emphasized in
addition to frontage improvements. Where feasible, improvements shall
not be intended to encourage greater volumes of through traffic. New
street systems shall be designed to respect this concept.
B.
Design criteria.
(1)
The residential subcollector design criteria applies
to the local roads.
(2)
The Board may require, based on the recommendation
of the Township Engineer, an interim improvement standard having a
full pavement width of 22 feet with shoulders.
(3)
Sufficient off-street parking equal to three spaces
per residence, not including garage space, shall be provided.
A.
Street intersections shall generally be at right angles,
although an angle of intersection of no less than 80° is permitted
under restrictive conditions. Intersections shall be offset a minimum
of 150 feet.
B.
Curb return radii shall be 25 feet for residential
access streets and 35 feet for all other municipal streets.
C.
Design of intersections with state or county roads
shall be governed by the appropriate agency having jurisdiction.
D.
Sight distances.
(1)
Intersection sight distances shall conform to the
following minimum standards:
|
Design Speed
(miles per hour)
|
Minimum Corner Intersection Sight Distance
(feet)
| |
|---|---|---|
|
50
|
500
| |
|
40
|
400
| |
|
35
|
300
| |
|
30
|
300
| |
|
25
|
250
|
(2)
The sight distances shall be measured from an observer
3.5 feet above the pavement and 15 feet behind the projected curbline
or projected travelway to an object 4.25 feet high located at the
center line of the approaching travel lane. A sight triangle easement
shall be provided preserving the sight lines required, except a minimum
sight triangle shall be 30 feet by 100 feet, with the thirty-foot
dimension being provided along the street subject to stop control.
Within the sight triangle easement there shall be no obstruction over
30 inches in height and below 10 feet.
E.
The maximum center-line grade of a through street
at intersections shall be 6%.
A.
Except at crossings required for system distribution
and individual services, public utilities shall be routed through
the street border areas along and parallel to the travelway. Storm
drainage and sanitary sewer conduit shall be located such that the
installations do not interfere with the border areas reserved for
public utilities.
B.
The subdivider shall arrange with the serving utility
for the underground installation of the utilities distribution supply
lines and service connection in accordance with the provisions of
the applicable standard terms and conditions incorporated as part
of its tariff as the same are then on file with the State of New Jersey
Board of Public Utility Commissioners and shall submit to the Planning
Board prior to the granting of final approval a written instrument
from each serving utility which shall evidence full compliance with
the provisions of this section; provided, however, that lots in such
subdivisions which abut existing streets where overhead electric or
telephone distribution supply lines have heretofore been installed
on any portion of the streets involved may be supplied with electric
and telephone service from such overhead lines or extensions thereof
but the service connections from the utilities overhead lines shall
be installed underground.
C.
Said utilities may be required to be located along
the real property lines with easements as provided in this chapter.
All utility installations shall be connected with a public utility
system and shall be adequate for all present and probable future development
of the subdivision.
Traffic signing and pavement markings shall
be provided in accordance with good practice following the Manual
on Uniform Traffic Devices, latest edition.
A.
Improved walkways may be required at the option of
the Planning Board with input from the school boards. If such walkways
are required, the Planning Board will have the option of determining
the material to be utilized for construction of the same. Such materials
will be as follows: cement (concrete), gravel (suitable for use by
handicapped persons), macadam/asphalt.
B.
In each case where a walkway is installed, appropriate
landscaping should be utilized so as to enhance the aesthetics.
A.
Residential driveways.
(1)
Subdivision proposals shall provide locations of all
driveway entrances required. Entrance designs shall conform to Exhibit
5.[1]
[1]
Editor's Note: Exhibit 5 is included at the end of this chapter.
(2)
Maximum driveway grades shall not exceed 6% within
25 feet of the right-of-way line and 15% elsewhere. Where grades exceed
10% within 100 feet of the right-of-way line, this length of driveway
beginning at the right-of-way line shall be surfaced with bituminous
concrete.
(3)
Design information.
[Amended by Ord. No. 98-11]
(a)
Prior to issuance of a building permit, complete
driveway designs, including vertical and horizontal alignments, and
drainage improvements are required when one or more of the following
occur:
(b)
The Planning Board may require sufficient design
information at the time of its review to be assured that access to
particular lots is feasible.
(4)
The clear distance between driveways shall be no less
than 25 feet from another driveway when measured along the right-of-way
line.
(5)
One driveway per residential lot is permitted.
(6)
On-lot turnaround is required.
B.
Commercial and industrial driveways.
(1)
The site plans shall provide locations and detail
designs of entrance driveways. Entrance designs shall conform to Exhibit
5.[2]
[2]
Editor's Note: Exhibit 5 is included at the end of this chapter.
(2)
Driveways shall be hard surfaced.
(3)
A maximum of two driveway entrances are permitted
for lots having frontage greater than 150 feet. Otherwise, one entrance
is permitted.
(4)
The clear distance between driveways shall be 50 feet
or more, measured at the right-of-way line.
(5)
Driveways shall not be located directly opposite a
residence unless no other option is available.
(6)
On-lot turnaround is required.
C.
Sight distance. Adequate sight distance shall be provided
for all driveways in accordance with this chapter.
D.
Location.
(1)
No driveway shall be located within 50 feet of the
curb or pavement return of a street intersection.
(2)
Driveway access shall favor lower order-streets.
(3)
Unless further restricted by other provisions of this
chapter, no driveway shall be less than five feet from a property
line.
(4)
No curb cut or driveway installation may extend past
a line projected from the adjoining property line at a right angle
to the street center line.
E.
Construction. Construction shall conform to Exhibit
5.[3]
[3]
Editor's Note: Exhibit 5 is included at the end of this chapter.
F.
Driveway improvement application. Where a proposed
driveway improvement is not part of a subdivision or site plan subject
to review by the Planning Board, the applicant shall submit an application,
accompanied by a fee set by the Township, to the Township Road Supervisor
for review and approval. The application shall contain plans and other
documentation necessary to fully represent the improvements proposed.
The Road Supervisor will review the application and supporting documentation
in conjunction with the standards set forth in this chapter. If the
conditions given in this chapter occur or for reason of sight distance
or other concerns, the Road Supervisor may refer the application to
the Township Engineer for review. Submission of additional supporting
documentation may be required demonstrating compliance with the chapter
or under certain circumstances the applicant will be required to furnish
a design prepared by a registered professional engineer.
