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HomeMy WebLinkAboutOrd 1272 - New Enrgy-Effcnt Light Sources �.�.� �.�,rt=: : ��, - ,.-„�-..r--.�� � �,T� �� �(�/� � �k;,x , . � ., �_� . ..��_ , . � � �: . . . _..���.��a -- j CITY OF PALM DE �; � : �' `a��-��'�� � � _ � DEPARTMENT OF COMMUNITY� �'°`"� � STAFF REPORT REQUEST: CONSIDERATION OF A COMPREHENSIVE UPDATE TO THE PALM DESERT MUNICIPAL CODE SECTION 24.16, OUTDOOR LIGHTING REQUIREMENTS, TO ALLOW FOR NEW ENERGY EFFICIENT LIGHT SOURCES. SUBMITTED BY: Tony Bagato, Principal Planner DATE: May 22, 2014 CONTENTS: Ordinance No. �272 Exhibit A Recommendation Waive further reading and pass Ordinance No. 12�2 to second reading approving an ordinance of the City of Palm Desert, California, updating Chapter 24.16, Outdoor Lighting Requirements. Citizens' Sustainabilitv Committee Action On February 10, 2014, the Citizens' Sustainability Committee reviewed and supported the proposed modifications to Chapter 24.16 that will allow new energy efficient light sources for exterior lighting. Backaround City staff and the Citizens' Sustainability Committee researched and discussed changes to the current Outdoor Lighting Requirements Ordinance to allow for new energy efficient light sources, such as Light Emitting Diode (LED) fixtures. The draft ordinance was prepared by MRC Engineering, Inc. as an approved vendor on the City of Palm Desert 2013 Consultant List. The draft ordinance has been revised to include new energy efficient light sources, while maintaining the overall purpose to minimize light pollution and light trespass, and preserve the night-time environment in the City. In addition, the ordinance has been reformatted to be more user-friendly than the existing ordinance. The sections have been reformatted, better organized, and new graphics have been added to better explain some of the requirements. Staff Report Outdoor Lighting Requirements Page 2 of 2 May 22, 2014 Environmental Review The City of Palm Desert, in its capacity as the Lead Agency for this project under the California Environmental Quality Act (CEQA), has determined that the proposed ordinance is not a project according to CEQA. Fiscallmpact � There will be no direct fiscal impact to the City as a result of the proposed ordinance. Submitted By: Tony Bagato, Principal Planner Department Head: i.' - Lauri Aylaian, Director of Community Development Approval: hn M. Wohlmuth, City Manager CITY COUNCILA�ION APPROVED DEN�� �� /�7� g� t OTHER MEETING DATE ' � ' AYE3: c� H�arni i� e�e. ��i�e y NOES: � ABSENh �°� AB5TAIN: � � VERIFIED BY: Origiaal on File with City erk's Oftice \\srv-fil2k3\groups\Planning\Tony Bagato\Sustainability and Greenhouse Gases\Sustainability\Outdoor Lighting Ordinance\CCSR_Outdoor_L 1 C�Ylt 1Il C�.C�O CX ORDINANCE NO. 1272 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF PALM DESERT, CALIFORNIA, APPROVING A COMPREHENSIVE UPDATE TO THE PALM DESERT MUNICIPAL CODE SECTION 24.16, OUTDOOR LIGHTING REQUIREMENTS TO ALLOW FOR NEW ENERGY EFFICIENT LIGHT SOURCES. WHEREAS, the City Council adopted Ordinance No. on day of , 2014 revising sections of the Palm Desert Municipal Code as described in Exhibit A; and WHEREAS, the Citizens' Sustainability Committee of the City of Palm Desert, California, recommended approval of the proposed ordinance; and NOW, THEREFORE, BE IT ORDINANDED by the City Council of the City of Palm Desert, California, that the following section of the Palm Desert Municipal Code is hereby amended, as follows: SECTION 1: That Palm Desert Municipal Code Section 24.16 is hereby amended and revised as described in Exhibit A, provided separately at City Hall. SECTION 2: That the City Clerk of the City of Palm Desert, California, is hereby directed to publish a notice of this ordinance with Exhibit A provided at City Hall in the Desert Sun, a newspaper of general circulation, published and circulated in the City of Palm Desert, California, and shall be in full force and effect thirty(30) days after its adoption. PASSED, APPROVED AND ADOPTED by the City Council of the City of Palm Desert, California, at is regular meeting held on the day of , 2014 by the following vote, to wit: AYES: NOES: ABSENT: ABSTAIN: VAN G. TANNER, MAYOR ATTEST: RACHELLE D. KLASSEN, CITY CLERK CITY OF PALM DESERT, CALIFORNIA ORDINANCE NO. 12�2 . EXHIBIT A CHAPTER 24.16 OUTDOOR LIGHTING REQUIREMENTS 24.16.010 Purpose and Intent 24.16.015 Outdoor Lighting Requirements 24.16.020 Architectural Outdoor Lighting Requirements 24.16.025 Pubfic Street Lighting 24.16.030 Submittal Plan Requirements 24.16.035 Lighting Performance Criteria 24.16.040 Light Trespass 24.16.045 Time of Operation 24.16.054 Permanent Exceptions 24.16.055 Temporary Lighting Exemptions 24.16.060 Definitions 24.16.010 Purpose and Intent A. The Outdoor Lighting Requirements are intended to minimize light pollution and light trespass, and preserve the night-time environment in the City. 1. Encourage the use of electrical engineers or lighting professionals to design outdoor lighting systems. 2. Require that all lighting products are designed to be energy efficient and utilize technology to control the lighting in a manner to meet the lighting design criteria of this ordinance. 3. Implement guidelines that define the characteristics of the lighting fixture distribution that reduces light pollution and preserve the night-time environment B. The ordinance is not intended to prevent the use of any design, products or method of installation. The Director may approve any such proposed alternate if the design meets the intent of the ordinance to provide high quality lighting performance, glare control, reduced light trespass to preserve the night-time environment. 24.16.015 Outdoor Lighting Requirements A. All luminaries with total lamp mean lumens above 4000 shall be full-cutoff type and meet the requirements illustrated in Figure 24.16-1. ORDINANCE NO. 1272 EXHIBIT A Figure 24.16-1 ALLOWS: No light at or above 90 degrees Zero percent 100 cd per 1000 lamp lumens at or above 80 degrees 10 percent B. Commercial and Residential Zones: Lighting sources (lamps) approved for commercial and residential zones are High Pressure Sodium (HPS), Light Emitting Diodes (LED), Light Emitting Plaza (LEP), Compact Fluorescent Lamps (CFL), Multifaceted Reflector halogen lamps (MR) and incandescent lamps. C. Lighting sources approved for public or municipal outdoor recreation facilities are High Pressure Sodium (HPS), Light Emitting Diodes (LED), Light Emitting Plaza (LEP) and Metal Halide (MH). D. Low pressure sodium lighting is not approved. E. Public or Municipal Outdoor Recreational Facilities. All lighting for Field Sports shall conform to the requirements of Section 24.16.060 Light Trespass. Sports lighting fixtures shall us the latest technology to control spill light from the lighting fixture as illustrated in Figure 24.16-2. 2 ORDINANCE NO. 1272 EXHIBIT A Figure 24.16-2 Old Generation New Technology off -field spill light on -field light Standard Symmetrical Reflector less spill pff-field , • more light on -field Redirects Off -Field Spill Light F Outdoor Recreational Facility lighting for sports courts (tennis, basketball, skating, volleyball, etc.) shall use full -cutoff optics. The maximum pole heights for sport courts shall be 30 feet. G. Pedestrian scale post top luminaries with total lamp lumens of less than 6000 may be non -cutoff if the fixture meets the requirements to prevent direct view of the lamp source by shielding the source with louvers and/or opaque Tens. Internal fixture reflector with a clear lens that distributes the light out of the fixture in a manner that promotes glare control may also be allowed. Refractors are not recommended to shield the lamp source. H. Low level lighting (bollards, step lights etc.) with total lamp lumens of less than 3500 may be non -cutoff if the fixture meets the requirements to prevent direct view of the lamp source by shielding the source with louvers and/or opaque lens. Internal fixture reflector with a clear lens that distributes the light out of the fixture in a manner that promotes glare control may also be allowed. I. All outdoor lighting mounting heights shall conform with the following; 1. Residential Zones: maximum of 18 feet height in residential zones. The lamp lumens shall be 15,000 lumens or less and provide for full -cutoff features. 2. Commercial Zones: maximum of 30 feet high in commercial zones. Total lamp lumens shall be 130,000 lumens or less with full -cutoff fixtures. J. Luminaries used primarily for walkway lighting (Pedestrian Scale Lighting) shall be mounted no higher than 10 feet above grade. K. Wall -Mounted Lighting: Residential wall -mounted lighting luminaries with total lamp lumens of Tess than 1,800 may be non -cutoff if the fixture meets the requirements to prevent direct view of the lamp source by shielding the source with louvers and/or 3 ORDINANCE NO. 1272 EXHIBIT A opaque Tens. Internal fixture reflector with a clear lens that distributes the light out of the fixture in a manner that promotes glare control may also be allowed. Refractors are not recommended to shield the lamp source. L. Commercial wall -mounted lighting luminaries with total Tamp lumens of less than 14 lumens per inch (total size of the wall Tight fixture face in inches) but not exceeding 4000 lumens total may be non -cutoff if the fixture meets the requirements to prevent direct view of the lamp source by shielding the source with louvers and/or opaque lens. Internal fixture reflector with a clear lens that distributes the light out of the fixture in a manner that promotes glare control may also be allowed. Refractors are not recommended to shield the lamp source. M. Security pole and wall pack lighting fixtures in commercial and residential zones shall only be allowed if the fixture lumens and shielding meet the requirements outlined. The following types of fixtures are not approved in any application. Figure 24.16-3 Examples of Acceptable / Unacceptable Lighting Fixtures Unacceptable Acceptable Fixtures that produce glare and light trespass Fixtures that shield the light source to minimize glare and light trespass and to facilitate better vision at night Unshielded Wallpacks & Unshielded Wall Mount Fixtures Drop -Lens & Sag -Lens Fixtures w/ exposed bulb / refractor fens Unshielded Streetlight Unshielded Security Light UUnnsshi/eelllded PAR Flood /� ri���T�Jlights Unshielded Period' Style Adlik' Fixtures \l/ Drop -Lens Canopy Fixtures Fully Shielded Wallpack & Wall Mount Fixtures Full Cutoff Streetlight Fully Shielded Security Light Full Cutoff Fixtures front Fully Shielded Fixtures Fully Shielded / \ 'Period' Style Fixtures MA,�cee, Shielded / Properly -aimed Flush Mounted Canopy PAR Floodlights Fixtures 4 ORDINANCE NO. 12�2 EXHIBIT A 24.16.020 Architectural Outdoor Lighting Requirements A. Lighting used to highlight architectural features, landscape, building facades, fountains etc. shall be manufactured for the intended uses and shall be adjusted and/or aimed during the night to insure light is focused on the designated object. B. Lighting luminaries intended to be directional shall be provided with sources less than 4000 lumens and must be furnished with shields, louvers and/or lenses to insure that the direct view of the lamp source is reduced. An internal fixture reflector system with a clear lens that distributes in a specific direction is designed to promote glare control. Refractors are not recommended to shield the lamp source. C. Landscape lighting fixtures intended to be directional onto landscape features shall be provided with sources less than 1,000 lumens and must be furnished with shields, louvers and/or lenses to insure that the direct view of the lamp source is reduced 24.16.025 Public Street Lighting A. Purpose. The City does not encourage the use of street lighting. However, the purpose of this section is to establish a set of guidelines with which to regulate the installation, operation and maintenance of overhead street lighting in the city. The city seeks to make provisions for street lighting that will be beneficial to city residents, and to provide for this lighting in an orderly, efficient and equitable manner. This section serves to establish a uniform standard for location of lights within the city. B. General Requirements. All street lighting installed in or for the benefit of a public right-of-way shall conform to the following: 1. All lighting standards, fixtures and lamp sources shall be established in accordance with specifications determined by the City Engineer. 2. All lighting standards in the public right-of-way will be installed and maintained by the Southern California Edison Company (SCE) per SCE Schedule LS-1, unless otherwise approved by the city engineer. C. Luminaire and Lamp Requirements. 1. High Pressure Sodium (HPS) street lighting in single-family residential districts shall use 9,500 lumens or less and shall be full-cutoff luminaries with house side shields. 2. Light Emitting Diodes (LED) street lighting in single-family residential districts shall use 9,500 lumens or less and shall be full-cutoff luminaries with house side shields. 5 ORDINANCE NO. �2�2 EXMIBIT A 3. Pedestrian scale post top luminaries in single-family residential districts with total lamp lumens of less than 4500 may be non-cutofF if the fixture meets the requirements to prevent direct view of the lamp source by shielding the source with louvers and/or opaque lens. Internal fixture reflector with a clear lens that distributes the light out of the fixture in a manner that promotes glare control may also be allowed. Refractors are not recommended to shield the lamp source. House side shields may be required to reduce the light directed towards residences. D. Street Lighting Locations 1. Residential street lighting shall be positioned at intersections. 2. Residential street lighting shall be positioned mid-block on streets greater than 8Q0 feet in length. 3. Residential street lighting shall be positioned at the end of cul-de-sacs when the street is greater than 300 feet in length. 4. Commercial and industrial streets shall have lighting positioned at intersections. 5. Other locations and/or spacing of lighting may be required by the City Engir�eer. 6. Locations other than intersections where the lighting will provide an aid to traffic or public safety may be required by the City Engineer. 24.16.030 Submittal Plan Requirements A. Applicants for any project that requires approval for outdoor lighting systems shall include a site plan, fixture cuts and a photometric plan illustrating that the proposed outdoor lighting system complies with the requirements outlined in the ordinance. The submission shall contain, but not be limited to, four (4) complete sets of the following: 1. A photometric lighting plan prepared by the project engineer showing point- by-point lighting levels for the entire lot and 10 foot beyond the project property lines. The point by point photometric plan shall provide lighting levels at a maximum of 10 foot intervals. Photometric calculations shall use a .85 light loss factor for all photometric plans. 2. Photometric calculations providing the following statistics as illustrated in Figure 24.16-4: • Average to Minimum • Maximum to Minimum • Average Foot-candles 6 ORDINANCE NO. 1272 EXHIBIT A • Minimum Foot-candles Figure 24.16-4 Statistics Description Symbol Avg Max Min Max/Min Avg/Min Avg/Max 80% Zone Photometrics -�- 2.0 fc 6.3 fc 0.4 fc 15.8:1 5.0:1 0.3:1 3. Photometric statistics representing the lighting and calculations in an area equal to 80 percent of the useable parking area, as shown in Figure 24.16-5: Figure 24.16-5 II1TT I PROJECT ENTRY LONE I � iavt iv% tCSI 'LM s. J PROJECT ENTRY ZONE PHOTOMETRIC SD L1$aL eox ZONE PLAN 9 \ 71 ti. 7 ORDINANCE NO. 1272 EXHiB1T A B. Submittal and drawings shall be signed by a licensed professional engineer or architect taking responsibility for the lighting design. The name and company information for the plan preparer shall be clearly stated on the submittal drawings. C. A description of the outdoor light fixtures including a manufacturer cut sheet, product specifications and shielding information for each lighting fixture used shall be included in the submittal package. 24.16.035 Lighting Performance Criteria A. The performance of the lighting submittal will be evaluated based on the following criteria when the lamp source is LED or LEP. 1. Minimum footcandles shall be 1.0 foot-candle. 2. Average maintained light level of 1.0 footcandles to 3.0 foot-candles. 3. Average-to-minimum uniformity ratio shall not exceed 4:1. 4. Maximum to Minimum uniformity ratio shall not exceed 16:1. B. The lighting system using High Pressure Sodium (HPS) shall be designed to the following standards: 1. Minimum footcandles shall be 1.5 foot-candle. 2. Average maintained light level of 1.5 footcandles to 3.0 foot-candles. 3. Average-to-minimum uniformity ratio shall not exceed 4:1. 4. Maximum to Minimum uniformity ratio shall not exceed 16:1. C. The illumination levels at exits, entrances, loading zones, and collector lanes shall be approximately twice the average illumination of the adjacent parking area or the adjoining street, whichever is greater. D. Building exit illumination levels shall meet the footcandle requirements established by the California Electrical Code and all associated building codes. 24.16.040 Light Trespass A. The requirements to minimize the off-site illumination onto adjoining properties shall include lower pole heights, glare shields and repositioning lighting poles. B. The photometric plan provided for the project shall illustrate the off-site footcandles up to the point when 0.00 footcandles is illustrated. 8 ORDINANCE NO. _� EXH�BIT A C. Lighting poles shall not be positioned at the property line adjacent to residential properties. D. Provide lighting fixtures with internal house side shielding so that no more than 0.10 footcandle is measured horizontally at the adjacent property lines. E. Private tennis courts will be required to meet off-site lighting requirements. Photometric lighting plans shall be provided for all private tennis court lighting systems. F. All building-mounted luminaries shall be a maximum of 18 feet above ground to the luminaire when adjoining residential property lines and a maximum of 20 feet above ground in other areas around the building. G. Wall pack lighting fixtures shall be meet full cut-off requirements and shall be included in all photometric lighting plans. H. Where the adjacent property is residential, all lighting shall be arranged so as to direct the light away from the adjacent property. I. Hillside lighting shall be designed with the following: 1. Hillside lighting systems must be submitted with a carefully detailed photometric plan illustrating horizontal and vertical footcandles and a written justification why hillside lighting should be allowed. Lighting plans shall be reviewed as part of a Hillside Development Plan as described in Section 25. 2. Hillside lighting shall utilize high pressure sodium sources and be furnished with glare shields. 3. Luminaries with total lamp lumens above 16000 lumens shall not be used. 4. All hillside lighting shall be turned off no later than 10:00 pm and remain off until the following evening. 24.16.045 Time of Operation A. All parking lot and building lighting systems shall meet the State of California Title 24 outdoor lighting control requirements. B. On-premises advertising signs may be illuminated all night. C. Outdoor recreational facility sports lighting shall be turned off at 10:00 pm with partial sports lighting remaining on until 10:30 pm to allow participants to safely vacate the field. 9 ORDINANCE NO. 12�2 EXH'IB1T A 24.16.050 Permanent Exceptions A. Nonconformance. All outdoor light fixtures existing and legally installed prior to the effective date of this chapter are exempt from the requirements of this chapter, except that when existing luminaries are reconstructed or replaced, such reconstruction or replacement shall be in compliance with this chapter. B. Holiday Decorations. Lights used for holiday decorations are exempt from the requirements of this chapter and may be installed 45 days prior to the holiday and removed 30 days after the holiday. C. American Flag Lighting. Lights used for illumination of flags as required by law are exempt from this chapter. 24.16.055 Temporary Lighting Exemptions A. Temporary exemptions must be approved by the Director prior to installation. Temporary lighting is required, but not limited to, parades, special civic or public events, special business events, grand openings of businesses, etc. B. Any individual, business and/or organization may submit a written request to the Director for a temporary exemption from the requirements of this chapter. The request shall be made on a Temporary Use Application along with the associated fee. C. The Temporary Lighting Application shall include the following: 1. Name, address, and telephone number of the applicant. 2. Location of the outdoor light fixtures for which the exemption is requested. 3. Use of the outdoor light fixtures involved. 4. Duration of the requested exemption(s). 5. Type(s) of outdoor lighting to be used including the lamp source, lumens, shielding and glare controls. 6. Site plan illustrating the locations of all lighting equipment. 7. Written description and justification for the temporary lighting. D. The Director shall have ten (10) business days from the date of receipt of the "request for temporary exemption" to approve or disapprove the request. The applicant will be notified of the decision in writing. 10 ORDINANCE NO. �272 EXHIBIT A 24.16.060 Definitions Advertising Display. Means advertising structures and signs used for outdoor advertising purposes; not including on-premises (exterior portable or interior) advertising signs. Ambient Light. The general overall level of lighting in an area from lighting not subject to this ordinance. Brightness. Strength of the sensation that results from viewing surFaces from which the light comes to the eye. Candela (cd). Unit of luminous intensity. One candela is one lumen per steradian. Formerly called the candle. Candlepower. Luminous intensity expressed in candelas. City Engineer. Means the City Engineer of the city of Palm Desert or a representative(s) designated by the City Engineer of the City of Palm Desert. Contrast. Is the difference between the luminaire luminous brightness and the brightness of the surrounding area. Decorative lighting. Means lighting products used for decorative effects versus lighting performance. Examples of decorative lighting include, but are not limited to, fountain lighting, lighting fixtures (pole, post or bollard style) creating a visual effect with low lumen output, led commercial outdoor string lighting, building wall sconce and chandelier lighting with low lumen lamp sources. Director. Means the Director of Community Development for the City of Palm Desert or a representative(s) designated by the Director of the City of Palm Desert. Disability Glare. Glare resulting in reduced visual performance and visibility. It is often accompanied by discomfort. Discomfort Glare. Glare that produces discomfort, but does not necessarily diminish visual perFormance. Fixture. The assembly that holds the lamp in a lighting system. It includes the elements designed to give light output control, such as a reflector (mirror) or refractor (lens), the ballast, housing, and the attachment parts. Footcandle. One foot-candle is one lumen per square foot. This simply means the amount of light which hits one square foot. Full-Cutoff. Means outdoor light fixtures shielded or constructed so that all of the light rays emitted by the fixture are projected below a horizontal plane passing through the lowest point on the fixture from which light is emitted. Drop or sag lensed type fixtures are not be allowed. IESNA classification that describes a luminaire having a light distribution in which 11 ORDINANCE NO. i2�2 EXI-�iB1T A zero candela intensity (visible light) occurs at or above an angle of 90° above nadir. Additionally, the candela per 1000 lamp lumens does not numerically exceed 100 (10%) at or above a vertical angle of 80° above nadir. This applies to all lateral angles around the luminaire. Glare. The lighting from a single or multiple lighting fixtures that causes one of the following conditions; 1. Produces sufficiently greater luminance (light) in an area to which the eyes are adapted to. This is known as Discomfort Glare. 2. Produces sufficiently greater luminance (light) in an area which causes visual performance loss and visibility. This is known as Disability Glare. General Outdoor Lighting. Means all outdoor lighting used for, but not limited to walkways, parking lots, equipment yards, outdoor security, outdoor retail or restaurant areas, automotive dealers (display areas only), assembly or repair areas, recreational facilities and similar applications where the use of the space or area requires accurate color rendition and light for ease of movement. High Intensity Discharge (HID) Lamp. In a discharge lamp, the emitted energy (light) is produced by the passage of an electric current through a gas. High-intensity discharge includes mercury, metal halide, and high pressure sodium lamps. Other discharge lamps are LPS and fluorescent. Some such lamps have internal caatings to convert some of the ultraviolet energy emitted by the gas discharge into visual output. High-Pressure Sodium (HPS) Lamp. Is a gas-discharge lamp that uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure. Low-pressure sodium lamps are the most e�cient electrical light sources, but their yellow light restricts applications to outdoor lighting such as street lamps. High- pressure sodium lamps have a broader spectrum of light than the low pressure, but still poorer color rendering than other types of lamps. Low pressure sodium lamps only give monochromatic yellow light and so inhibit colar vision at night. IESNA. Means Illuminating Engineering Society of North America. Incandescent Lamp. Light is produced by a filament heated to a high temperature by electric current. These lamps include MR Lamps, Tungsten Halogen Lamps, Par and R lamps. EISA 2007 set new performance requirements for certain common light bulbs, requiring that these bulbs become approximately 25-30% more efficient than the light bulbs by 2012- 2014. Overall, the intent of this is to bring into the market more efficient light bulbs. Some new incandescent products could be introduced by the effective dates of the law, including a bulb by General Electric that will decrease the amount of energy required. Non- incandescent bulbs, such as compact fluorescent (CFL) and light emitting diodes (LED) already meet the Tier I standards introduced. 12 ORDINANCE NO. �272 EXHiBIT A Induction Lighting. The internal electrode less lamp or induction light is a gas discharge lamp in which the power required to generate light is transferred from outside the lamp envelope to the gas inside via an electric or magnetic field, in contrast with a typical gas discharge lamp that uses internal electrodes connected to the power supply by conductors that pass through the lamp envelope. Installed. Means any legal installation of outdoor light fixtures after the effective date of this chapter. Lighting-Emitting Diode (LED) Source. An electronic semiconductor device that emits light when an electric current passes through it. They are considerably more efficient than traditional light bulbs and provide for long lamp life. LEDs are used in many applications such as flat-screen video displays, indoor and exterior lighting fixtures. Light Pollution. An unwanted effect of manmade outdoor lighting that contributes to the effects of sky glow, light trespass, and/or glare. Light Trespass. An undesirable condition in which exterior light is cast where it is not wanted. Lumen. A unit measurement of a light bulb, arc tube or light emitting diodes (LED) light output expressed as initial Lumens or lumen output. Luminaire. A complete lighting unit consisting of a lamp or lamps and the parts designed to distribute the light, to position and protect the lamp(s), and to connect the lamp(s) to the power supply. (Also referred to as fixture). The complete lighting unit, including the lamp, the fixture, and other parts. Mercury Lamp. The mercury vapor lamp is a high intensity discharge lamp. It uses an arc through vaporized mercury in a high pressure tube to create very bright light directly from its own arc. Mercury lamps are not approved in the City of Palm Desert. Metal-Halide Lamp. This type of lamp is also known as an 'MH' lamp. It is an HID lamp (High Intensity Discharge), which means it provides most of its light from the eiectric arc within a small discharge tube. It is becoming increasingly popular due to its good quality white light and good efficiency. The most prominent use of the MH lamp is in stadiums and sports fields. It is also used widely for parking lots and street lighting in urban areas. Mounting Height. Means the distance from the finished grade to the top of the lighting fixtures including any lighting fixture foundation. Municipal. Means an area, street or facility which is owned or managed by the City of Palm Desert or is associated with a City of Palm Desert facility such as parks, recreation facilities or a city-owned or managed building such as City Hall. Non-Cutoff. Describes a luminaire having a light distribution in which no limitation of light intensity occurs above 90° above nadir. 13 ORDINANCE NO. 1272 EKHIBIT A New Development Area. Means any development in previousiy unimproved areas. This includes new developments generally recognized as planned housing, industrial or commercial developments. Off-Street Lighting. Lighting for off-street parking in public, private, municipal or restricted parking areas. All lighting positioned off the street in public and private properties i.e. parking lots, building lighting, walkway lighting, parks, and fenced yards. Outdoor Light Fixture. Any lighting product intended and designed for outdoor use to provide illumination of a defined area or subject. Parking Area. An area, other than a public street, designed or used primarily for parking. Pedestrian Scale. Means a luminaire mounted at no more than ten feet above finished grade and intended to illuminate a walking path or small pedestrian area. Photometry or Photometric. The quantitative measurement of light level and distribution. This information is developed with programs designed to illustrate foot-candles numerically on a project site plan. Plasma Lighting (LEP). Plasma lamps are a type of gas discharge lamp energized by radio frequency (RF) power which produce high Illuminance for exterior applications such as streets, large big box parking lots and sports lighting applications. The LEP lamps have a life ranging from 30,000 to 50,000 hours, a CRI of 95. Their LEP lamp is able to operate up to 50% more efficiently than conventional HID (High-intensity discharge lamp) lamps while generating the same maintained lumens as a conventional 400 watt system at about half the energy. The technology also allows the lamp to be dimmed to 50% of the rated lamp lumen output. Recreational Facilities. Means public, municipal or private facilities designed and equipped for the conduct of sports, leisure time activities, and other customary and usual recreational activities. Outdoor recreational facilities include, but are not limited to, fields or stadiums for softball, baseball, football, soccer, golf courses, driving ranges and other "field sports," and courts for tennis, basketball, volleyball, handball and other "court sports." Reflector. Controlling light output by means of reflection (mirror). Refractor. Controlling light output by means of refraction (lens). Street Lighting. Means lighting for all streets or highways including intersections. Semi-Cutoff. Means outdoor light fixtures designed or constructed so that ninety-five percent (95%) of the light rays emitted by the fixture are projected below the horizontal plane passing through the photometric center of the fixture from which the light is emitted. A luminaire light distribution in which the candela per 1000 lamp lumens does not numerically exceed 50 (5°l0) at or above an angle of 90° above nadir, and 200 (20%) at or above a vertical angle of 80° above nadir. This applies to all lateral angles around the luminaire. 14 ORDINANCE NO. 12�2 EXH�BIT A Sky Glow or Urban Sky Glow. Any adverse effect of manmade light that produces direct lighting into the sky from the lamp compartment that is not shielded. 15