(a) Site lighting, security lighting and architectural/landscape lighting should provide the user with illumination levels appropriate for the designed activity (i.e. parking, walking). Illumination levels should also be reasonably uniform throughout the site and strive to minimize glare.
(b) General Lighting Standards.
(1) Avoid competing light levels and maintain balanced light levels on-site and between adjacent properties. The exterior lighting design must take into account the background lighting levels, lighting from other sources, and characteristics of the surrounding area.
(2) Recommended light level guidelines and uniformity ratios established by the Illumination Engineering Society of North America (IESNA) in the IESNA Lighting Handbook (current edition) should be considered along with the predominant lighting characteristics of the surrounding area when determining appropriate solutions to lighting design.
(3) Light glare or excess brightness must be minimized. Cut-off fixtures, mounting heights, and the elevation of potential viewers must all be considered for effectively controlling glare by directing light below the horizontal.
(4) Light trespass beyond property lines should be controlled by shielding or aiming fixtures away from residential properties. Light trespass should not exceed ambient levels.
(5) Security lighting and lighting of service areas should meet the standards listed above.
(c) Architectural and Landscape Lighting.
(1) Architectural lighting should be used to highlight special features only. Lighting of expansive wall planes or the use of architectural lighting that results in hot spots on walls or roof planes should be avoided.
(2) Landscape feature lighting and lighting at the pedestrian level is encouraged.
(Ord. 09-07. Passed 3-19-07.)