To minimize and manage ambient light levels to protect public health and the integrity of ecological systems and increase the night sky access, improve nighttime visibility, and reduce the consequences of development for wildlife and people.
Achieve a sky glow at or below 4 in the Bortle Dark-Sky Scale where the Milky Way is still visible in residential areas, or a Sky Quality Meter reading of 21.2 or greater.
Reference: STAR v2 BE-1: Ambient Noise & LightOR
- A minimum of 70% of the street lighting in the city or community should meet the requirements of section on Glare and Sky-Glow requirements of ‘ANSI/IESNA RP-8-14 Roadway Lighting’. AND
- Adopt a lighting ordinance for the city or community conforming to the Section II to VI of the Model Lighting Ordinance (MLO), 20111 developed jointly by the International Dark Sky Association and Illuminating Engineering Society.
1 http://darksky.org/wp-content/uploads/bsk-pdf-manager/16_MLO_FINAL_JUNE2011.PDF, Accessed on December 17, 2018.
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