Outdoor lighting hereafter erected or maintained in the Township
shall conform with the provisions of this article and the provisions
of the Township Building Code and all applicable ordinances and regulations of the Township.
[Amended 9-11-2000 by Ord. No. 2000-05]
A. Definitions. As used in this section, the following terms shall have
the meanings indicated:
CUTS
The manufacturer's catalog sheets, including photographs
or pictures showing the design of the fixture and the performance
data for the luminaires. The cuts also show lighting fixture supports,
poles and the light standards which are proposed with applicable notes.
FOOTCANDLE (FC)
A quantitative unit for measuring illumination equivalent
to the illumination produced by a plumber's candle (standard source),
measured at a distance of one foot; one lumen per square foot.
ISOLUX DIAGRAM
A line plotted on any appropriate set of coordinates which
shows all the points of a surface where the illumination is the same
as an isolux (isofootcandle) line. When a series of such lines for
various illumination levels is plotted on the same set of coordinates,
an isolux diagram is formed.
LUMINAIRES
A complete lighting unit, lighting unit assembly (including
reflectors, glassware, socket, etc.) and accessories for mounting.
REFLECTOR
A surface or element of a luminaire designed to direct light
in a desired direction.
B. Plan requirements.
(1)
Final lighting plan. The location and type of all proposed exterior
lighting fixtures for parking areas shall be indicated on the final
lighting plan, along with the expected hours of operation. On all
pedestrian and vehicular use areas indicated on the lighting plan,
an isolux diagram shall be drawn to sufficiently indicate the illumination
levels furnished by each luminaire and the pattern of coverage on
these areas. Reproduction of the cuts shall be transferred to the
lighting plan for each type and configuration of proposed exterior
lighting.
(2)
Final landscape plan. The location and type of all proposed
exterior lighting fixtures shall be indicated on the final landscape
plan to ensure that there is no conflict between the location of light
standards and the location of trees and that trees will not adversely
affect lighting patterns. Lighting fixture locations shall be indicated
on the plan by symbol.
C. Design standards. Lighting for safety purposes to illuminate parking
and/or pedestrian areas shall conform to the following:
(1)
Lighting shall be designed so that the illumination does not
appear beyond the property line on which the lighting originates at
levels above 0.2 footcandle.
(2)
Parking areas shall be lighted using support poles or lighting
standards. The fixtures shall be located within or adjacent to parking
areas, in raised traffic islands, parking bay separators or adjacent
landscape areas. Parking areas shall not be lighted by means of floodlighting
attached to buildings. Poles or standards shall be located so as not
to be damaged by automobiles being parked (front overhang: minimum
39 inches; rear overhang: minimum 60 inches).
(3)
The maximum height of outdoor lighting standards and fixtures
shall not exceed 20 feet in height, measured from the ground level
to the top of the fixture.
(4)
All light fixtures shall be of the shielded type and provided
with deflector light cutoff shields.
(5)
Site lighting shall not be lighted by means of floodlights attached
to buildings, except for single-family dwelling units.
D. Other lighting.
(1)
Design standards for athletic fields and other similar lighting not included in Subsection
C above shall be permitted by special exception. The height and design of the lighting array shall be determined on a case-by-case basis considering the following issues:
(d)
Definitions. As used in this section, the following terms shall
have the meanings indicated:
GLARE
A subjective effect from the highest amount of light from
the brightest source of light which must be mashed by reflects or
other devices to be reduced.
SKY GLOW
The bright aura in the night sky which requires reflections
be controlled.
SPILL LIGHT
The footcandles measured beyond the area you are trying to
illuminate. In no event shall footcandles exceed 0.2 at the property
line.
(2)
The applicant shall formulate their design based on requirements
of the Illumination Engineering Society, the NCAA and the requirements
of the various sports groups or similar criteria for lighting in excess
of 20 inches in height.
(3)
All lighting must be directed onto the field in question to the maximum extent possible. The height shall be determined by this factor in conjunction with Subsection
D(1) and
(2) above.
E. Applicability. The submission requirements under this section shall
be part of the submission of any subdivision and land development
applications, where applicable. Any application for subdivision or
land development, which includes the installation of outdoor lighting,
shall not be considered complete unless accompanied by the appropriate
submittals as outlined in this section.
Nothing in this article shall be construed to be applied retroactively
to existing lighting. When more than 50% of the lighting fixtures
on a property are replaced, the new lighting fixtures shall conform
to this section.