The arrangement, character, extent, width, grade
and location of all streets shall conform to the General Community
Plan and shall be considered in their relation to existing and planned
streets, to topographic conditions and to public convenience and safety
and in their appropriate relation to the proposed uses of the land
to be served by such streets and shall conform to the following design
standards in a manner acceptable to the Planning Commission:
A. Where not shown on the General Community Plan, the
arrangement of streets in a subdivision shall either:
(1) Provide for the continuation or projection of existing
principal streets in surrounding areas; or
(2) Conform to a neighborhood plan to meet a particular
situation where topographic or other conditions make continuance or
projection of existing streets impracticable.
B. Minor streets shall be so laid out that their use
by through traffic will be discouraged.
C. Where a subdivision abuts or contains an existing
or proposed arterial street, railroad right-of-way or rail crossings,
access thereto shall be limited to a minimum number of intersections
as is practicable, and such major access intersections with arterial
streets and/or rail crossings shall be determined with due regard
for sight distance, distance between intersections, approach grades
and requirements for future grade separations.
D. Marginal access streets paralleling such limited access
arterial streets shall be required, in such cases where practicable,
reversing the frontage of residential properties with a screen planting
contained in a nonaccess reservation strip along the rear of and between
the property line and the arterial street right-of-way. Such reserve
strips shall be prohibited except where their control is definitely
placed with the municipality.
E. Street jogs with center-line offsets of less than
125 feet shall be avoided.
F. A tangent at least 100 feet long shall be introduced
between curves on arterial and collector streets.
G. When connecting street lines deflect from each other
more than 10°, they shall be connected with a curve with a radius
adequate to ensure sight distance.
H. Streets shall be laid out to intersect as nearly as
possible at right angles, and no street shall intersect any other
street at less than 60°.
I. Alleys shall be permitted only in cases where necessary.
J. Street right-of-way widths shall be not less than
as follows:
|
Type of Street
|
Width
(feet)
|
---|
|
Arterial
|
80 to 120
|
|
Collector
|
60 to 80
|
|
Minor
|
50
|
|
Marginal access
|
50
|
|
Alley
|
20
|
K. Dead-end streets designed to be so permanently shall
not be longer than 600 feet and shall be provided with a turnaround
having an outside road diameter of at least 80 feet and a property
line diameter of at least 100 feet.
L. No street grade shall be less than 1/2 of 1% or more
than 10%, unless topographic conditions make a steeper grade necessary.
Easements across lots centered on rear or side
lot lines or where necessary for utilities, watercourses, drainageways,
channels or streams shall be not less than 10 feet wide.
[Amended 12-9-2002 by Ord. No. 447]
A. Where not prohibited by this chapter or any other laws or ordinances, land located in flood-prone areas may be platted for development with the provision that the developer construct all buildings and structures to preclude flood damage in accordance with this chapter; Chapter
102, Construction Codes, Uniform, of the Danville Borough Code; and other laws and ordinances regulating such development.
B. If the Borough determines that only a part of a proposed
plat can be safely developed, it shall limit development to that part
and shall require that development proceed consistent with this determination.
C. When a developer does not intend to develop the plat
himself and the Borough determines that additional controls are required
to ensure safe development, it may require that developer to impose
appropriate deed restrictions on the land. Such deed restrictions
shall be inserted in every deed and noted on every recorded plat.
D. All subdivision proposals and development proposals
containing at least 50 lots or at least five acres, whichever is the
lesser, in flood hazard areas where base flood elevation data are
not available, shall be supported by hydrologic and hydraulic engineering
analyses that determine base flood elevations and floodway information.
The analyses shall be prepared by a licensed professional engineer
in a format required by FEMA for a Conditional Letter of Map Revision
or Letter of Map Revision. Submittal requirements and processing fees
shall be the responsibility of the applicant.