The URL can be used to link to this page

Home My WebLink AboutA001 - Planning and Zoning Commission recommendation S r M AEr emo Canng Q Department of Planning & Housing Caring People \ Quality Programe � Frroniinnnl.Carvira TO: Doug Marek, City Attorney Becki Rippke, Legal Technician, City Attorney's Office Diane Voss, City Clerk FROM: Cindy Hollar, Secretary DATE: August 5, 2010 SUBJECT: Zoning Ordinance Text Amendments Related to Outdoor Lighting The Planning and Zoning Commission recommended approval (6-0 vote) of the above-mentioned amendment to the Zoning Ordinance at its meeting of August 4, 2010. The City Council will be reviewing this proposed amendment at its meeting of August 24, 2010. I have attached a copy of the Commission Action Form dated August 3, 2010, as prepared by Charlie Kuester. Please contact Charlie at extension 5400 if you have any questions regarding this agenda item. \clh Attachment cc: Charlie Kuester, Planner SAPLAN SHMCouncil Boards Commissions\PZ\Memos\2010\MemotoClerk-AttomeyRegardingTextAmendmentforoutdoorLighting-08-05-10.doc f ` ' DATE 08/04/10 Caring People Q:"'Programs Exceptional Service COMMISSION ACTION FORM SUBJECT: ZONING ORDINANCE TEXT AMENDMENT RELATED TO OUTDOOR LIGHTING CODE BACKGROUND: The Outdoor Lighting Code (Section 29.411) of the Zoning Ordinance regulates among other things, the amount of light emitted in the glare zone of outdoor light fixtures. This glare zone is defined as the area between "15 degrees below the horizontal to the horizontal plane through the lowest direct light emitting part of the luminaire." (This is the area measured from 75 degrees from horizontal to 90 degrees from horizontal.) The amount of light that can be emitted in this 15 degree angle is no more than 5 percent of its total lumens. No light can be emitted above the horizontal plane. In determining whether a luminaire meets these limits, staff relies on the information provided by the manufacturer or the vendor. The lighting industry has several firms that measure light output of luminaires and provide a standard display of that information in a Photometric Report. The Luminaire Classification System (LCS) summary provides luminaire lumens output over a range of angles. These ranges of angles are: 0 degrees (straight down) to 30 degrees; 30 to 60 degrees; 60 to 80 degrees; 80 to 90 degrees (horizontal); 90 to 100 degrees; and 100 degrees to 180 degrees (straight up). The LCS summary details the number and percent of luminaire lumens that are found within each range, from the front of the lamp and the rear of the lamp. An example of the LCS summary is attached to this report. The range of angles of the LCS summary providing information that most closely matches the requirements of the ordinance is the 80 to 90 degree range. Our ordinance regulates the 75 to 90 degree range. In order to determine whether a luminaire is compliant requires staff to extrapolate data from LCS summary in the 60 to 80 degree range and add it to the data in the 80 to 90 degree range. This is not an exact mathematical exercise since light does not fall evenly within any of the range of angles. Sometimes, staff has to guess or apply best judgment to determine whether a luminaire meets the requirements of the lighting ordinance. The outdoor lighting code also requires that information on the lighting fixtures be submitted at the time that a site development plan is submitted. Staff has heard form architects, engineers, and developers that the owner of a building may not yet know what his outdoor lighting fixtures are—that those details may evolve as the project moves forward. Staff responded to customer suggestions and asked the City Council to refer this item to staff. That was done on January 12, 2010. Staff is proposing two changes to the outdoor lighting ordinance. One change is to amend the code to allow no more than 5 percent of total lumens to fall within the 10 degree below horizontal to horizontal plane. 1 gree o - egree range a is a industry standard or glare zone, gulatory requirement into alignment with the industry standard. It also Caring pportunity for error in extrapolating lighting information in the 15 degree Qaaliry E"'Pa�9' e and would remove any ambiguity as to whether a fixture meets the standards. The other change is to allow an applicant to either supply the requested information at the time of site plan submittal or to note on the plan that the information will be submitted to the Planning and Housing Department prior to installation. Staff discussed these changes as well as other options with developers at the quarterly meeting in April. Based on that discussion, staff prepared draft amendments and e- mailed them to local developers, architects, and engineers for review and comment. Staff also discussed these options with Dave Speer of Lighting Analysts, Inc. His firm evaluates luminaires and generates lighting information for manufacturers. Mr. Speer confirms that the 80 to 90 degree range is the industry standard for glare zone regulations. While the 75 to 90 degree range can certainly be evaluated, their firm has no plans to generate those data. Staff also contacted David Oesper and Ed Engle. Both were members of the committee that initially developed the outdoor lighting ordinance. Both indicated that it is important to maintain some regulation over lumens that are emitted in the glare zone and both believed that changing the standard from no more than 5 percent in the 80 to 90 degree range would have a negligible impact on light pollution from the existing standard of no more than 5 percent in the 75 to 90 degree range. Both indicated support of the proposed changes. To date, we have received no other comments on the draft amendments. Staff is therefore submitting them for the Planning & Zoning Commission's review. A strikeout/underlined version is attached for the Commission's consideration. ALTERNATIVES: 1. The Planning and Zoning Commission may recommend to the City Council to adopt the amendments as proposed and attached. 2. The Planning and Zoning Commission may recommend adoption of the proposed amendments, with modifications. 3. The Planning and Zoning Commission may recommend that the City Council not adopt the proposed amendments. 4. The Planning and Zoning Commission can refer this back to staff for additional analysis. 2 Caring arr amendments respond to customer and staff concerns about the QuWiN Cep"e7y'iai lity of information to determine compliance with the outdoor lighting ordinance. The amendment will require the submittal of information that is readily available from the manufacturer or vendor of lighting fixtures. The current practice relies on extrapolation of data that sometimes is imprecise. The amendment also allows the customer an option when submitting a site plan application. The customer can submit the necessary lighting information with the application or can note on the plan that no lighting will be installed unless approved later. This allows the customer to determine the actual lighting fixtures at a later date and require staff to evaluate them prior to installation. It is staff's recommendation that the Planning and Zoning Commission act in accordance with Alternative #1, which is to recommend that the City Council adopt the changes as proposed and attached. S:\PLAN—SHR\Council Boards COmmissions\PZ\Commission Action Forms\Text Amendments\OutdoorLightingP&ZStaffReport-08-04-10.doc 3 Caring Pegpk brellence in Illumination QualityP'1?gF-- Fogineenfigsoftwafe Exctption lSeFvrce`.. gg since 1� igi Photometric Report (Type C) Filename. ekg501-4--250 -h8,i#-- (TEST) k301.41t, (I SUEDATE) €18 13 07 P7UFAt KIM LIGHTING CLU CAT( FKG501-4 55011P - IR ,'41S a - (LUMINAIRE] EKG C6trVF+1TIOtJAL SH EBOX LITt+;II'dAIRE DI CAST ALUM REFLECTOR SYSTEM WITH HIGH SPEC:ULAX PAWELS EXTRUDED TILUMI HOUSING AND LENS FPJU•18 CLEAR FLAT GLASS LENS : a' � (LAME'] 250 s4AfT CLEAR, HFS E18 L€MPo HORIZONTAL POSITION, RATED AT 28500 INITIAL LUMENS Maxitwum Candela m 9226 of 51.5 H 72.5 V C:l.n��l.ff.cati�ra; R_>ad C:l,a as fivati xn: Type IV, Medium, Full. Cutoff (deprecated) Lu ina Axe Efficacy Rating (LERI : 50 Ind00r ClagnifiCat:iQn: Uire to LCS Summary., LaunrnaizO Ltt eria VpAIi ;ht: LCS Sane Lantana T a p lLum FL (0-30) 923.6 3 ,3 7,4 FM (30 60) 4189.4 1510 33.5 Fli (60-80) 502a'2 1.7.9 40.2 FVH (80- 0) 114.3 L 4 0.9 EL (0_3€1) 57715 2.1: 4.6 13M (10-660) 1180,9 4 .2 9.4 BH i60-80) 465.5 1. 7 3.7 BVH (80-90) 22.6 0.1 0.2 ) 6 LS to 5141-1 4 0.0 0.0 0.0 0 Total 12497.0 44,7 10 0 0� 60 _1 . .... Back Front ar3l�f Fha�.xs�srel.. q,iypasxt r,,wr.:urraexs.. �rpg�.,i1,. a5r5 t„ba GY BA IJ:elrey d�a.Ya+�. lnz a7su s&cims based an.pabliaNed 7&S Men11s4� urx9 rx!:.:�n°,atasxn�, ma.:9.za�x ruu.�3rr3 t'wt w.*ialav vakp-.a`a tf��a1�� drr,?:aA�ti Yarxa rzxnb af::t a£ ma!xu�ac`.t:.u.x�YtS htscs :str_ �I ie. 4 outdoor Lighting Cocle - Proposed Amendments - Carng People Qity Pmg— pni o ing proposed amendments pertain to the Outdoor Lighting Code (Section E29.411). Current regulations are cited below, with proposed new language shown as underlined text, and proposed deleted language shown as strikeoui text. Only those sections with proposed changes are shown. Only those paragraphs with proposed changes are shown. Section 29.411(3) Control of Glare — Luminaire Design Factors (a) Any luminaire with a lamp rated at more than 1800 lumens shall not emit, in its installed position, any direct light above a horizontal plane through the lowest direct light emitting part of the luminaire. (b) Any luminaire with a lamp rated at more than 1800 lumens, shall not emit in its installed position any more than 5% of its total light output in the zone from 45 10 degrees below the horizontal to the horizontal plane through the lowest direct light emitting part of the luminaire. Section 29.411(9) Development Permits (a) Submission Contents. The applicant for any permit or site plan approval required by any provision of the ordinances of this city involving outdoor lighting fixtures shall submit (as part of the application for site plan approval or a permit) evidence that the proposed work or activity will comply with the Outdoor Lighting Code. Specifically, the application or submission shall include: (i) plans indicating the location on the premises, and the type of illuminating devices, fixtures, lamps, supports, reflectors, and other devices; (ii) a detailed description of the illuminating devices, fixtures, lamps, supports, reflectors, and other devices. The description shall include manufacturer's catalog cuts and drawings, including sections when requested; (iii) photometric data, such as that furnished by manufacturers, showing the angle of cut off or light emissions or luminaire classification system data as supplied by the manufacturer or independent testing laboratory. (b) Additional Submission. The above required plans, descriptions and data shall be sufficiently complete to enable the plans examiner to readily determine whether compliance with the requirements of the Outdoor Lighting Code will be secured. If such plans, descriptions and data cannot enable this ready determination, by reason of the nature or configuration of the devices, fixtures, or lamps proposed, the applicant shall additionally submit as evidence of compliance to enable such determination such certified reports of tests as will do so provided that these tests shall have been performed and certified by a recognized testing laboratory. (c) Alternative Submission As an alternative to 9 (a) and 9 (b) above a note may be placed on the site plan indicating that no outdoor lighting shall be 5 Mess approve Cl bV th-e-ETe-p-artment 61 Planninqang Housing. installation of anv outdoor lighting fixtures sufficient information �Q"'�' People ribed in 9 a or 9 b above shall be submitted to the De artment in Programs Exceptional Service 1prep—rto determine compliance with the Outdoor Lighting Code. (-.)(d) Lamp or Fixture Substitution. Should any outdoor light fixture, or the type of light source therein, be changed after the permit has been issued, a change request must be submitted to the building official for approval, together with adequate information to assure compliance with this code, which must be received prior to substitution. 6