§ 18.18.060 — Definitions

18.18.060 - Definitions.

Unless otherwise expressly stated, the following words and terms shall, for the purposes of this Code, have the meanings shown below: "Class 1 lighting" means all outdoor lighting used for, but not limited to, outdoor sales or eating areas, assembly or repair areas, advertising and other signs, outdoor recreational facilities, city parks as defined in City Code Section 13.24.010 and other similar applications where color rendition is important to preserve the effectiveness of the activity. Recognized class 1 uses are: outdoor eating and retail food or beverage service areas; outdoor maintenance areas; display lots; assembly areas such as concert or theater amphitheaters. "Class 2 lighting" means all outdoor lighting used for, but not limited to, illumination for walkways, roadways, equipment yards, parking lots and outdoor security where general illumination for safety or security of the grounds is the primary concern. "Class 3 lighting" means any outdoor lighting used for decorative effects including, but not limited to, architectural illumination, United States, state, county, or city flags and monument lighting, and illumination of trees, bushes, or other landscaping features. "Cutoff" and "full cutoff" shall have the meanings as defined by the lighting handbook. "Directly visible" means allowing a direct line-of-sight to the light source or lamp. "Director" means the building official as defined in Section 18.02.101.4 of this Code. "Display lot" means outdoor areas where active nighttime sales activity occurs and where accurate color perception of merchandise by customers is required. A display lot shall entail one of the following specific uses: automobile sales, boat sales, tractor sales, building supply sales, gardening or nursery sales, assembly lots, swap meets. Additional uses may be designated as display lot as determined by the director. "Flood lamp" means a specific form of lamp designed to direct its output in a specific direction (a beam) with a reflector formed from the glass envelope of the lamp itself, and with a diffusing glass envelope. "Footcandle" means one lumen per square foot. Unit of illuminance. It is the luminous flux per unit area in the Imperial system. One footcandle equals approximately ten (10.76) lux. "Full cutoff light fixture" or "fully shielded light fixture" means a luminaire with light distribution such that no light is emitted above the horizontal plane at the lowest portion of the light fixture. "Glare" means the sensation produced by a bright source within the visual field that is sufficiently brighter than the level to which the eyes are adapted to cause annoyance, discomfort, or loss in visual performance and visibility; blinding light. The magnitude of glare depends on such factors as the size, position, brightness of the source, and on the brightness level to which the eyes are adapted. "Illuminance" means the amount of light falling onto a unit area of surface (luminous flux per unit area), measured in lumens per square meter (lux) or lumens per square foot (footcandles). "Installed" means the attachment, or assembly fixed in place, connected to a power source, of any outdoor light fixture. "Lighting handbook" means the most recent edition of the lighting handbook of the Illuminating Engineering Society, NA or its successor publication. "Light trespass" means light falling into an area contrary to the requirements of this Chapter. "Lighting zones" means the four lighting zones are based on the zoning districts or overlays established by the Zoning Ordinance. Guidelines used to guide the delineation of the lighting zones are: A. Lighting Zone E1. This zone shall include all zoning districts with a "planned mountain development" overlay. B. Lighting Zone E2. This zone shall include the zoning districts of R-F, R-1, R-2, R-2A, R-3, R-3A, R-4, R-5, RMH, RMD, P-R I, SRR, P-R II. C. Lighting Zone E3. This zone shall include the zoning districts of A-1, A-2, A-3, A-4, A-O, A-3/O, A-M, C-OP and S-D. D. Lighting Zone E4. This zone shall include the current zoning districts of C-1, C-2, C-3, C-4, C-5, M-1, M-2, M-3, P-C, Q, and P-I. "Lumen" means a unit of luminous flux; used to measure the amount of light emitted by lamps. "Luminaire" means the complete lighting assembly (including the lamp, housing, reflectors, lenses and shields), less the support assembly (pole or mounting bracket); a light fixture. For purposes of determining total light output from a luminaire or light fixture (see under this section, "Outdoor light output, total"), lighting assemblies which include multiple unshielded or partially shielded lamps on a single pole or standard shall be considered as a single unit. "Luminous tube" means a glass tube filled with a gas or gas mixture (including neon, argon, mercury or other gasses), usually of small diameter (10-15 millimeter), caused to emit light by the passage of an electric current, and commonly bent into various forms for use as decoration or signs. A "neon" tube does not include common fluorescent tubes. "Lux" means a unit of illuminance equal to one lumen per square meter. One lux equals approximately 0.1 (0.093) footcandles. "Monument" means a structure that has the sole purpose and use of providing writings, drawings or pictures to commemorate persons, events or the site at which the structure is located, but does not include signs that are regulated by Chapter 20.18, sculptures or statutes. "Multi-class lighting" means any outdoor lighting used for more than one purpose, such as security and decoration, such that its use falls under the definition of two or more classes as defined for class 1, 2 and 3 lighting. "Net acreage" means the total area of the development project. For parcels including those special uses listed in Sections 18.18.150, 18.18.160, 18.18.170 and 18.18.180 that are exempted from the lumens per acre caps of Section 18.18.080 (recreational facilities, city parks and outdoor display lots), the area devoted to the special use shall also be excluded from the net acreage. "Opaque" means that a material does not transmit light from an internal illumination source. Applied to sign backgrounds, means that the area surrounding any letters or symbols on the sign either is not lighted from within, or allows no light from an internal source to shine through it. "Outdoor light fixture" means an outdoor illuminating device, outdoor lighting or reflective surface, luminous tube, lamp or similar device, permanently installed or portable, used for illumination, decoration, or advertisement. Such devices shall include, but are not limited to lights used for: A. Parking lot lighting; B. Roadway lighting; C. Buildings and structures; D. Recreational areas; E. Landscape lighting; F. Billboards and other signs (advertising or other); G. Product display area lighting; H. Building or structure decoration; I. Building overhangs and open canopies; and J. City parks. "Outdoor light output, total" means the initial total amount of light, measured in lumens, from all lamps used in outdoor light fixtures. The term includes all lights and luminous tubing used for class 1, class 2, class 3 and multi-class lighting, and lights used for external illumination of signs, but does not include lights used to illuminate internally illuminated signs or luminous tubing used in neon signs. For lamp types that vary in their output as they age (such as high pressure sodium, fluorescent and metal halide), the initial lamp output, as defined by the manufacturer, is the value to be considered. For determining compliance with Section 18.18.080, total outdoor light output standards, the light emitted from lamps in outdoor light fixtures is to be included in the total output as follows: A. Outdoor light fixtures installed on poles (such as parking lot luminaires) and light fixtures installed on the sides of buildings or other structures, when not shielded from above by the structure itself as defined in subsections B., C. and D. of this section, are to be included in the total outdoor light output by simply adding the initial lumen outputs of the lamps; B. Outdoor light fixtures installed under canopies, buildings (including parking garage decks), overhangs or roof eaves where all parts of the lamp or luminaire are located at least five feet but less than ten feet from the nearest edge of the canopy or overhang are to be included in the total outdoor light output as though they produced only one-quarter of the lamp's rated initial lumen output; C. Outdoor light fixtures installed under canopies, buildings (including parking garage decks), overhangs or roof eaves where all parts of the lamp or luminaire are located at least ten feet but less than thirty feet from the nearest edge of the canopy or overhang are to be included in the total outdoor light output as though they produced only one-tenth of the lamp's rated initial lumen output; and D. Outdoor light fixtures installed under canopies, buildings (including parking garage decks), overhangs or roof eaves where all parts of the lamp or luminaire are located thirty or more feet from the nearest edge of the canopy or overhang are not to be included in the total outdoor light output. Such lamps must however conform to the lamp source and shielding requirements of Section 18.18.070. "Outdoor recreation facility" means an area designed for active recreation, whether publicly or privately owned, including, but not limited to, baseball diamonds/fields, soccer and football fields, golf courses, city parks, basketball courts, athletic fields or tracks, racquetball courts, golf driving ranges, tennis courts and swimming pools. "Property" means a parcel of real property that has a property identification number assigned to it by the Central Appraisal District. "Searchlight" means a lighting assembly designed to direct the output of a contained lamp in a specific tightly focused direction (a beam) with a reflector located external to the lamp, and with a swiveled or gimbaled mount to allow the assembly to be easily redirected. Searchlights include such lights that are used commonly to sweep the sky for advertisement purposes. "Seasonal decorations" means temporary outdoor light displays consisting of unshielded low-wattage incandescent lamps of fifteen watts or less. "Sign, externally illuminated" means a sign illuminated by light sources from the outside. "Sign, internally illuminated" means a sign illuminated by light sources enclosed entirely within the sign cabinet and not directly visible from outside the sign. "Sign, neon" means a sign including luminous gas-filled tubes formed into text, symbols or decorative elements and directly visible from outside the sign cabinet. "Spot lamp" means a specific form of lamp designed to direct its output in a specific direction (a beam) with a reflector formed from the glass envelope of the lamp itself, and with a clear or nearly clear glass envelope. Spot lamps are those lamps so designated by the manufacturers. "Spot light" means a lighting assembly designed to direct the output of a contained lamp in a specific tightly focused direction (a beam) with a reflector located external to the lamp.

(Ord. 16985 § 33, 2008; Ord. 15996 § A (part), 2005) (Ord. 17171, § 4, 8-18-2009; Ord. No. 17390, § 22, 8-24-2010, eff. 9-1-2010; Ord. No. 17882, § 1, 10-2-2012; Ord. No. 17921, § 1, 12-18-2012)