03/01/02 Draft #1
Town of Kent, New York
Proposed Local Law:
A. Legislative intent; purpose and definitions
(1) Purpose: The Purpose of the proposed amendments is to provide more specific guidelines for site plan applications and standards in regard to lighting, in order to maximize the effectiveness of site lighting, to avoid unnecessary upward illumination and illumination of adjacent properties and to reduce glare. This law shall apply to new construction for which a Building Permit is sought after the effective date of the law. This law shall apply to existing construction and installations and shall take effect 18 months after passage of this amendment into law.
(2) Definitions: For the purposes of this section, the following terms shall have the following meanings:
DISABILITY GLARE: The eye's line-of-sight contact with a direct light source, which causes a partial blindness.
FOOTCANDLE: A unit of measure for illuminance. A unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen per square foot. Footcandle values can be measured directly with certain handheld incident light meters.
FULL CUT-OFF TYPE FIXTURE: A luminaire or light fixture that; by design of the housing, does not allow any light dispersion or direct glare to shine above a 90 degree, horizontal plane from the base of the fixture. Full cut-off fixtures must be installed in a horizontal position as designed, or the purpose of the design is defeated, and disability glare will result.
HORIZONTAL ILLUMINANCE: The measure of brightness from a light source, usually measured in footcandles or lumens, which is taken through a light meter's sensor at a horizontal position.
LIGHT TRESPASS: Light from an artificial light source that is intruding into an area where it is not wanted or does not belong.
UPLIGHTING: Any light source that distributes illumination above a 90-degree horizontal plane.
U. RATIO: Uniformity ratio, describing the maximum level of illumination in relation to the lowest level of illumination for a given area. Example: U. ratio = 4:1 for the given area, the lowest level of illumination (1) should be no less than 1/4 or "4 times less" than the maximum (4) level of illumination.
FULLY SHIELDED: Refers to providing internal and/or external shields and louvers to prevent brightness from lamps, reflectors, refractors and lenses from causing glare at normal viewing angles.
BOLLARDS: Luminaires having the appearance of a short thick post, used for walkway and grounds lighting. The optical components are usually top mounted.
B. Proposed Standards
(1) Except as otherwise provided in this subsection, a permit shall be required for the following uses.
(2) A permit shall not be required for temporary holiday and special event lighting of a non-promotional nature, provided that such lighting is limited to a maximum of 60 days per year. For these purposes low wattage incandescent or LED sources shall be permitted.
(3) A permit shall be required for the lighting of sports fields and tennis/racquet ball courts. The applicant must submit a lighting plan with fixtures that limit the light distribution to the playing area and block all view of the lighting fixture's lamp from adjacent areas. A shutoff method or timer must be a part of the plan to extinguish sports lights no more than 1 hour after the cessation of play.
(3) Permits shall be issued by the department or board having approval authority over the underlying action, e.g. the Building Department for Building Permits and the Planning Board for site plans.
This law shall take effect 20 days after enactment and filing with the Secretary of State.
Variances to this law may only be granted by majority consent of the Zoning Board of Appeals of the Town of Kent.
IES RECOMMENDED MAINTAINED ILLUMINANCE VALUES FOR PARKING LOTS (FOOTCANDLES)
(From Page 3, IESNA Recommended Practice RP-20-98)
Examples on the left are unacceptable unless they can be fully shielded. Exceptions: The obsolete Dusk to Dawn security light, Drop Lens Cobra streetlight and unshielded acorn/Colonial type may not be used in any new construction.
Copyright © 2005 a Citizen Run Web Site
Wednesday, January 5, 2005