In a recent government meeting, the Lexington Planning Commission discussed a significant amendment aimed at regulating outdoor lighting to reduce light pollution and protect dark skies. Senior Planner Boyd Sere presented the proposed ordinance, known as PLN ZOTA 24-4, which aligns with the 2045 comprehensive plan's goal of minimizing light pollution's impact on both humans and wildlife.
Sere highlighted the detrimental effects of excessive outdoor lighting, including disruption of natural sleep cycles, negative impacts on plant and animal behavior, and increased energy consumption leading to higher greenhouse gas emissions. The proposed regulations would extend beyond current parking lot lighting standards to encompass all outdoor lighting, with specific guidelines to minimize glare, light trespass, and sky glow.
Key features of the ordinance include the requirement for fully shielded light fixtures, a maximum color temperature of 300 kelvins for outdoor lighting, and height limits for light fixtures raised from 12 to 25 feet. The ordinance also sets maximum lumens allowed per acre for residential and non-residential properties and establishes light trespass regulations to limit light crossing property lines.
The commission discussed exceptions for sporting events, ensuring that adequate lighting is provided for player safety while still adhering to the new regulations. The ordinance also includes provisions for increased lighting standards for entertainment venues, allowing higher lumens and mounting heights to accommodate spectators.
After thorough discussion, the commission unanimously approved the ordinance, which is based on successful models from other jurisdictions. The new regulations are expected to enhance nighttime safety for pedestrians and motorists while promoting energy efficiency and environmental protection.