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Item 6C Proposed changes to the Outdoor Lighting (Ordinance 693-C) Item 6C Purpose/Background Strategic Alignment C1 Achieve the highest standards of safety & security B6 Optimize use of technology Southlake 2030 Goals and Objectives - 7.2- Promote public awareness and education on such sustainability issues as public health, energy and water conservation and overall environmental stewardship. Southlake 2030 recommendation: As development continues, light pollution is an increasing problem in North Central Texas -- Evaluate options for addressing and reducing light pollution City Council Ordinance Priority Schedule C4 Attract & keep top-tier businesses to drive a dynamic & sustainable economic environment March 20th – Work Session Proposed Ordinance Changes Permit LED luminaries on poles over 42” in height and exterior wall mounted light fixtures (4,300K) Variance criteria Shielding next to residential Color Temperatures Color Temperatures over 4,301 K are called cool colors (blueish/white) Color Temperature at 3,000 K – 4,300K are called neutral colors   Color Temperatures below 3,000K are called warm colors (yellowish white through red). Temperature Ranges Kelvin Temperature Test Case Examples of Fully Shielded Fixtures Examples of Fixtures Not Fully Shielded Variance (2) Upon finding that an outdoor light, or system of outdoor lights required for a particular use cannot reasonably comply with the standard and provide sufficient illumination for safety or security, as determined by recommended practices adopted by the Illuminating Engineering Society of North American for the particular use or other evidence submitted by a professional engineer or other professional organization.   (3) Upon finding where a literal application or enforcement of the regulations would result in practical difficulty or unnecessary hardship and the relief granted would not be contrary to the public interest or the intent but do substantial justice and be in accordance with the spirit of the regulations and this Ordinance. Ken Baker 817-748-8067 LED Basics LED Lighting Benefits of LED Lighting? Energy Savings C4 Attract & keep top-tier businesses to drive a dynamic & sustainable economic environment Greatly Extended Life LED - 70,000 hours High Pressure Sodium – 24,000 hrs. Metal Halide – 12,000 hours B6 Optimize use of technology Public Safety C1 Achieve the highest standards of safety & security Uniformed Lighting Standard HID Lighting LED Lighting C2 Provide travel convenience within City & region Architectural Enhancement C3 Provide attractive & unique spaces for enjoyment of personal interests Light Pollution/Dark Sky C3 Provide attractive & unique spaces for enjoyment of personal interests Environment C1 Achieve the highest standards of safety & security Market Source: McKinsey & Company B6 Optimize use of technology Proposed Ordinance Changes Define color temperature ranges Permit LED luminaries on poles over 42” in height and exterior wall mounted light fixtures Color Temperatures Color Temperatures over 4,301 K are called cool colors (blueish/white) Color Temperature at 3,000 K – 4,300K are called neutral colors   Color Temperatures below 3,000K are called warm colors (yellowish white through red). Temperature Ranges Temperature Ranges Temperature Ranges LED (left side of road) HPS (right) Other Chnages Modification to the Variance Section Screening of lighting apparatus adjacent to residential Questions Requested Action Approve Proposed Ordinance 693-C Amending Ordinance 693-B Requirements for Outdoor Lighting Background Information Purpose of Ordinance Preserve nighttime enjoyment Protect Drivers from glare Provide design standards to prevent glare Promote Energy Efficiency Background Information Current Outdoor Lighting Ordinance References High Pressure Sodium (HPS) lights Limits use of Light Emitting Diodes (LEDs ) LED Technology Smaller Lamp- Less Heat More Energy Efficient No Dangerous Chemicals LED Technology Shielding Design - Provides Glare-Free Light Better Direction - Puts Light Where Needed Reduced Glare = Enhanced Visibility & Safety LED Potential Recognized by Lighting Engineers U.S. Department of Energy Proposed Regulations Add New Language to Section 3. Definitions Color Temperatures Cool-Blueish White Neutral Color Warm- Yellowish White through Red LED (left side of road) HPS (right)