As used in this Part 20, the following terms shall have the meanings indicated:
ABANDONMENTDiscontinuance in the usage of a lighting installation, or portion thereof, with no intention to resume the usage of such lighting. A lighting installation or portion thereof that has not been operated for a period of 180 days or longer shall be considered to be abandoned.
ADMINISTRATIVE VARIANCEAn administrative dispensation, reviewed and approved by the Village Manager or Village Manager's designee, permitted on individual parcels or property as a method of alleviating unnecessary hardship by allowing a reasonable use of the building, structure or property, which, because of unusual or unique circumstances or the regulating standards of other regulating agencies, is denied by the terms of this Part 20.
ARCHITECTURAL LIGHTINGOutdoor lighting directed at buildings, facades, structures, monuments, and other architectural features.
AUTOMOBILE SERVICE STATION (GAS STATION)Any building or premises used for dispensing or offering for sale automotive fluids or oils, having pumps and underground storage tanks; also, where battery, tire, and other similar services are rendered, but only if rendered wholly within a building. Automobile service stations shall not include the sales or storage (new or used) of automobiles, trailers, or other vehicles. Automobile service stations shall include mini-marts as a special use.
BILLBOARDA surface whereon advertising matter is set in view conspicuously and which advertising does not apply to premises or any use of premises wherein it is displayed or posted.
CANOPYA roofed structure that is open on at least three sides and typically provides protection from the sun or weather, which is associated with the sale of commercial goods or services.
COMMERCIAL DISTRICT LIGHTING ZONEA lighting area on any zoning lot in a commercial zoning district that is used typically relating to, concerning or arising from the sale or provision of goods or services.
CORRELATED COLOR TEMPERATURESpecification of the color appearance of the light emitted by a lamp, relating its color to the color of light from a reference source when heated to a particular temperature, measured in degrees Kelvin (K).
EMERGENCY EGRESS LIGHTINGA battery-backed lighting device designed to come on automatically when a building experiences a power failure or emergency.
FOOTCANDLEA unit of measure of the intensity of light falling on a surface, equal to one lumen per square foot.
FULLY SHIELDEDA light fixture or luminous tube constructed and mounted such that all light emitted by the fixture or tube, either directly from the lamp, tube, or a diffusing element, or indirectly by reflection or refraction from any part of the light fixture, is projected below the horizontal. If the lamp or tube, any reflective surface, or lens cover (clear or prismatic) is visible when viewed from above or directly from the side, from any angle around the fixture or tube, the fixture or tube is not fully shielded. Examples of fully shielded light fixtures include, but are not limited to, those illustrated in Appendix C. (Note: To be fully shielded, these fixtures must be closed on top and mounted such that the bottom opening is horizontal.)
GLAREA visual disturbance produced by a distinct light source within the visual field that is sufficiently brighter than the level to which the eyes are adapted.
HID LIGHTINGA high-intensity discharge family of lighting that includes high-pressure sodium, fluorescent, mercury vapor, and metal halide type bulbs.
ILLUMINANCEThe amount of visible light, as measured in lumens, falling onto a unit of surface area, correlating to the perception of brightness by the human eye. Illuminance is typically measured in lumens per square foot (footcandles) or lumens per square meter (lux).
INDUSTRIAL DISTRICT LIGHTING ZONEA lighting area on any zoning lot in an industrial zoning district that is used typically relating to, concerning or arising from the manufacturing, assembling, fabrication, finishing, packaging, or processing of goods.
INSTALLED HEIGHTThe height above average finished grade of the lowest point on an installed luminaire.
INTERNALLY ILLUMINATED SIGNA sign illuminated by a light source internal to the sign enclosure which is not directly visible externally. For the purposes of this Part 20, a neon-light sign is considered to be an internally illuminated sign.
KELVINA unit increment of temperature and is used as a color temperature scale of a light bulb (symbol "K").
LAMPThe source of light being emitted from a luminaire, such as a bulb.
LANDSCAPE LIGHTINGOutdoor lighting directed at trees, shrubs, plants, flower beds, fountains, gardens, and other natural or landscaped features.
LIGHTElectromagnetic radiation within a range of wavelengths sufficient for visual perception by the normal, unaided human eye.
LIGHTING CATEGORIESA. BUILDING LIGHTINGAll luminaires mounted on or used to illuminate the exterior of a building, including any luminaires under the roofline.
B. CANOPY LIGHTINGAll luminaires mounted to and used to illuminate the area under a canopy.
C. LANDSCAPING LIGHTINGAll luminaires used to illuminate landscaped areas, site features, sidewalk areas, fencing or any exterior site improvements, excluding the building and parking lot.
LIGHTING INSTALLATIONAn arrangement of one or more luminaires, including any mounting hardware, brackets, and supporting structures.
LUMENThe unit used to measure the amount of light which is produced by a lamp.
LUMINAIREAn individual lighting assembly, including the lamp and any housings, reflectors, globes, lenses, shields or other components designed to block or distribute light. For the purposes of this Part 20, an internally illuminated sign is not considered a luminaire.
LUMINANCEA measure of the brightness of a surface which is emitting light. The unit of measurement most commonly used is candelas per square meter, often referred to as "nits" in the United States (1 nit = 1 cd/m2). The nocturnal appearance and environmental effect of objects such as internally lit signs shall be analyzed both by total light output (lumens) and by their surface brightness (nits).
MANUFACTURER'S CUT SHEETA description of each luminaire identified in the site plan, including the manufacturer, part number, model number, a photograph or catalog cut, correlated color temperature (CCT), photometric data verifying any compliance requirements specified within this Part 20, light output in initial lumens, shielding or glare reduction devices, lamp type, on/off control devices and the location of each luminaire as identified in the site plan.
MOTION-ACTIVATED SENSORA sensor which causes a luminaire to become illuminated automatically upon the presence of motion or infrared radiation or a combination thereof within its field of view.
NADIRThe direction pointing directly downward from the light source of the luminaire that originates from a horizontal plane at the lowest point on the luminaire.
NEON LIGHTBrightly colored light generated by using electric current to excite a gas or gas mixture (including neon, argon, helium, or other gases) typically contained in a tube which can be bent into various forms for use as decoration or signs. For the purposes of this Part 20, fluorescent tubes are not considered neon light.
NET ACREAGEThe gross acreage minus the acreage devoted to existing street rights-of-way, stormwater retention and detention basins, bodies of water, public parks, school sites, municipal sites, wetlands, floodplains, and areas with slopes greater than 12%.
NIT(S)A unit of measure of luminance (see "luminance").
NONCONFORMING USEAny use which was legally established prior to the effective date of this Part 20, or subsequent amendment to it, and which would not be permitted to be established as a new use in the zone in which it is located by the regulations of this Part 20.
ORGANIZED SPORTING EVENTA prearranged sports or recreational event involving at least one group or team with a published roster and schedule.
OUTDOOR ATHLETIC FIELDAn open outdoor field, court, or track or similar facility used for athletic activity or playing sports such as baseball, soccer, football, tennis, skate park, volleyball, and basketball.
OUTDOOR DISPLAY LOTAn outdoor area whose primary function is the sale of displayed merchandise, often requiring accurate color perception by customers.
OUTDOOR LIGHTINGLight generated from an indoor or outdoor source that provides illumination to a surface, building, sign, structure, device, or other outdoor feature which is visible to an observer located outdoors. For the purposes of this Part 20, the light source inside an internally illuminated sign is not considered outdoor lighting.
PHOTOMETRIC PLANAn illuminance grid plan for multi-fixture lighting installations that demonstrates compliance with all applicable requirements set forth in this Part 20.
PRINCIPAL STRUCTUREA structure in which a principal use of the lot on which the structure is located is conducted.
PUBLIC DISTRICT LIGHTING ZONEA lighting area on any zoning lot in a public zoning district that is used for governmental buildings and public schools.
PUBLIC PARKING AREAA drivable surface intended for use by the general public for parking of motorized vehicles.
RESIDENTIAL DISTRICT LIGHTING ZONEAny zoning lot in a residential or agricultural zoning district that has as its primary use a single-family residential dwelling or a two-family residential dwelling, as defined in Chapter
200, Zoning, of the Village Code.
SEARCHLIGHTA lighting installation designed to project a high-intensity beam of approximately parallel rays of light that is typically used to sweep the sky for promotional purposes.
SINGLE-PURPOSE EMERGENCY EGRESS LIGHTINGA battery-backed lighting device designed to come on automatically when a building experiences a power failure or emergency. A single-purpose fixture can only be used for the sole purpose of emergency egress lighting. It shall not be considered as exempt from the provisions of this Part 20 when used as a dual-purpose fixture.
STREET LIGHTINGOne or more luminaires or light installations designed to illuminate a public roadway or intersection.
UPLIGHTINGLighting applications which direct light above a horizontal plane.
VARIANCEA dispensation permitted on individual parcels or property as a method of alleviating unnecessary hardship by allowing a reasonable use of the building, structure or property, which, because of unusual or unique circumstances, is denied by the terms of this Part 20.
ZONING LOTA parcel of land, composed of one or more recorded lots or a parcel of land described by metes and bounds, that is of sufficient size to meet the minimum district requirements of this Part 20 and having frontage on an improved public or private street, and which is designated by its owner or developer as a tract of land to be used, developed, or built upon as a unit, under a single ownership or control. A "zoning lot" shall or shall not coincide with the definition of a "lot of record."