(A) Purpose. The purpose of this section is to regulate the spill-over of light and glare on operators of motor vehicles, pedestrians, and land uses in the vicinity of a light source in order to promote traffic safety and to prevent the creation of nuisances.
(B) Applicability. The requirements of this section apply to all private exterior lighting within the jurisdiction of this chapter, except for lighting within public rights-of-way and/or lighting located on public property.
(C) Lighting plan. The developer shall submit sufficient information in the form of an overall exterior lighting and photometric plan to enable the Planning Department to determine that the applicable provisions of this code will be satisfied. The plan shall include at least the following.
(1) A site plan, drawn to a standard engineering scale of not more than 100 feet to the inch (1 inch = 100 feet), showing the building footprints or buildable lot area, streets and all proposed exterior lighting fixtures; and
(2) Specifications or details for all proposed lighting fixtures including photometric data, information about fixtures, Color Rendering Index (CRI) of all lamps (bulbs) and other descriptive information on the fixtures including height of fixtures.
(D) Requirements.
(1) Fixture standards. All fixtures shall be full cut-off or a shielded type, not allowing any upward distribution of light. Full cut-off fixtures must be installed in a horizontal position as designed. Up- lighting shall be prohibited.
(2) Intensity of illumination.
(a) In no instance shall the amount of illumination attributable to exterior lighting, as measured at the property line, exceed 0.50 foot-candles above ambient lighting conditions on a cloudless night.
(b) The maximum average on-site lighting in non-residential zoning districts shall be 2.4 foot-candles (500 watts metal halide or high pressure sodium, 250 watts low pressure sodium).
(c) The maximum average on-site lighting in residential zoning districts shall be 0.90 foot-candles (185 watts metal halide or high pressure sodium, 90 watts low pressure sodium).
(d) The following exceptions shall be permitted:
a. Outdoor recreation facilities and assembly areas: Maximum average on-site lighting of 3.60 foot-candles (750 watts metal halide or high pressure sodium, 375 watts low pressure sodium).
b. Auto display lots: Maximum average on-site lighting of 0.20 foot-candles (50 watts metal halide or high pressure sodium, 25 watts low pressure sodium).
(3) Location. Light fixtures shall not be located within required bufferyards.
(4) Flashing, flickering, and other distracting lighting. Flashing, flickering and/or lighting which may distract motorists are prohibited.
(5) Minimum lighting standards. All areas designated on required site plan for vehicular parking, loading, or circulation and used for any such purpose after sunset shall provide artificial illumination in such areas at a minimum intensity of 0.2 foot-candles.
(E) Lighting of gas station canopies.
(1) Lighting levels on gas station aprons and under canopies shall be adequate to conduct the activities taking place in such locations.
(2) Light fixtures mounted under canopies to light the gasoline pump islands shall be recessed so that the lens cover is recessed or flush with the bottom surface (ceiling) of the canopy and/or shielded by the fixture or the edge of the canopy so that light is restrained to no more than 85 degrees from vertical. Lighting should be designed to minimize glare and not direct light beyond the property boundaries in excess of one foot-candle of the area being illuminated or onto adjacent properties or streets, and should not result in excessive lighting levels.
(3) All non-essential lighting will be required to be turned off after business hours, leaving only the necessary lighting for security.
(4) Spotlighting and any form of up-lighting is prohibited.
(Ord. O-05-04, passed 4-11-05; Am. Ord. O-11-18, passed 6-27-11)