The following terms shall have the indicated meanings:
CANDLEPOWER DISTRIBUTION CURVEA curve representing the variation of luminous intensity of the luminaire, measured in candelas in a plane through a light center.
CUTOFF LIGHT DISTRIBUTIONLight distribution for a luminaire such that candlepower per 1,000 lumens does not exceed 25 (2.5%) at 90º above nadir or 100 (10%) at 80º above nadir at any location around the luminaire. The cutoff classification is usually specified on the manufacturer's published data.
DRIVEWAY ACCESSA usable roadway suitable for vehicular traffic connecting private buildings, parking areas, and other facilities to public streets and roads.
FULLY SHIELDED LIGHT FIXTUREA light fixture constructed in such a manner that all light emitted by the fixture, either directly from the lamp or diffusing element, or indirectly by reflection or refraction from any part of the luminaire, is projected below the horizontal as determined by photometric test or certified by the manufacturer. Any structural part of the light fixture providing this shielding must be permanently affixed.
GLAREThe sensation produced by luminance sufficiently greater than the luminance to which the eye is adapted so as to cause annoyance, discomfort, or loss in visual performance and visibility.
ILLUMINANCEThe density of light on a surface quantified in footcandles, measured by an illuminance meter, or calculated by accepted engineering techniques.
LEVEL OF ACTIVITYClassification by the number of vehicles and level of pedestrian activity in the area.
LIGHT DISTRIBUTIONThe illuminance at all points on the illuminated surface from specified light sources at specified mounting heights and spacing.
LIGHT TRESPASSThe unwanted lighting of neighboring properties from light sources intended for the proposed sites.
LUMINAIREA complete lighting unit consisting of a light source and all necessary mechanical, electrical, and decorative parts.
MOUNTING HEIGHTThe vertical distance of the light source from the illuminated plane.
PRIVATEBelonging exclusively to a person or concern.
PUBLICPertaining or affecting a population or community as a whole.
RECREATIONAL FACILITIESStructure designed or built to accommodate pastimes, exercise, or other resources offering relaxation and enjoyment.
SPACINGThe horizontal distance between adjacent light sources.