Each applicant for development plan approval shall provide adequate lighting to insure safe movement of persons and vehicles and for security purposes. Lighting standards shall be of a type approved by the reviewing board. Directional lights shall be arranged so as to minimize glare and reflection on adjacent properties. In determining whether this provision has been met, the reviewing board may take into consideration the standards set forth in Illuminating Engineering Society Lighting Handbook (5th Edition) edited by John E. Kaufman, published by Illuminating Engineering Society, 545 East 46th Street, New York, New York.
All area lighting shall provide translucent fixtures with shields around the light source. For each fixture and lighted sign, the total quantity of light radiated above a horizontal plane passing through the light source shall not exceed 7 1/2% of the total quantity of light emitted from the light source. Any other outdoor lighting shall be shown on the development plan in sufficient detail to allow determination of the effects at the property line and on nearby streets, driveways, residences and overhead sky glow. No lighting shall shine directly or reflect into windows, or into streets and driveways in such a manner as to interfere with driver vision. No lighting shall be of a yellow, red, green or blue beam nor be of a rotating, pulsating, beam, or other intermittent frequency. The intensity of such light sources, light shielding, the direction and reflection of the lighting, and similar characteristics shall be subject to development plan approval by the reviewing board. The objective of these specifications is to minimize undesirable off-site effects.
Area Classification
Roadway and Walkway Classification
Commercial
Intermediate
Residential
Footcandle
Lux
Footcandle
Lux
Footcandle
Lux
Vehicular roadways:
Freeway*
0.6
6
0.6
6
0.6
Major and expressway*
2.0
22
1.4
15
1.6
Collector
1.2
13
0.9
10
0.6
Local
0.9
10
0.6
6
0.4
Alleys
0.6
6
0.4
4
0.2
Pedestrian walkways:
Sidewalks
0.9
10
0.6
6
0.2
Pedestrianways
2.0
22
1.0
11
0.5
*
Both main line and ramps
For other critical areas, the recommended footcandles are as follows:
At intersections
2.0
Parking areas
1.0
Maximum at property lines
1.0
Residential areas
0.6 (average)
0.1 (minimum)
Plant entrances
2.0
The height of light poles shall be limited to the maximum height of structures permitted in the particular zoning district where they are located or 25 feet, whichever is less. The light itself shall be shielded to restrict the maximum apex angle of illumination to 150° to eliminate glaze.
Streetlighting standards of a type and number approved by the reviewing board and municipal engineer shall be installed at street intersections and elsewhere as deemed necessary by the reviewing board. The developer shall provide for the installation of underground service for streetlighting.
Standards should generally be spaced at a distance approximately equal to four times the height of a standard. Alternative standard spacing may be considered by the reviewing agency, provided it has adequate light intensity and is consistent with all other development.
The reviewing board shall consider maintenance and access regarding light locations. Light shall not be placed in high or inaccessible locations where maintenance would be difficult.