Morrisville Unified Development Ordinance - February 2021.2

Article 5: Development Standards Section 5.15. Exterior Lighting 5.15.2. Applicability

5.15.2. Applicability A. General

The provisions of this section shall apply to all new or expanded multifamily, group living, nonresidential, and mixed-use development, as well as any new or expanded off-street parking facilities, and any off- street loading area, unless exempted by subsection B below. (Ord. No. 2015-002, 04/29/2015) B. Exemptions The following are exempted from the exterior lighting standards of this section: 1. Lighting within a public street right-of-way or easement that is used principally for illuminating a roadway—but not lighting within a street right-of-way or easement that is designed to illuminate areas outside the right-of-way or easement; 2. Lighting exempt from this Ordinance under state or federal law; 3. FAA-mandated lighting associated with a telecommunications or utility tower or an airport; 4. Lighting for public monuments and statuary; 5. Lighting for flags permitted in accordance with ; 6. Lighting solely for signage (subject to standards in Section 5.16, Signage; 7. Temporary lighting for circuses, fairs, carnivals, theatrical and other performance areas—provided such lighting is discontinued upon completion of the performance; 8. Temporary lighting of construction sites—provided such lighting is discontinued upon completion of the construction activity; 9. Temporary lighting for emergency situations—provided such lighting is discontinued upon abatement of the emergency situation; 10. Security lighting controlled and activated by motion sensor devices for a duration of 15 minutes or less; 11. Underwater lighting in swimming pools, fountains, and other water features; and 12. Holiday or festive lighting—provided such lighting complies with the limitations on temporary lighting associated with holiday decorations and civic events in Section 5.16.2.C.4. C. Measurement of Light Levels Light levels are specified, calculated, and measured in maintained foot-candles (i.e., include a maintenance factor for dirt build-up and lamp lumen depreciation) unless specified otherwise. Measurements of light levels shall be taken with a light meter that has been calibrated within two years. They shall be taken at finished grade (ground level), with the light-registering portion of the light meter held parallel to the ground and pointing up. The meter shall have cosine and color correction and an accuracy tolerance of no greater than plus or minus five percent. 5.15.3. Vehicle Use Area and Outdoor Lighting Light Levels A. Light Levels and Uniformity Ratios for High Pressure Sodium (HPS) and Metal Halide (MH) Lighting Exterior light levels for high pressure sodium (HPS) and metal halide (MH) lighting shall comply with standards in Table 5.15.3, Light Levels and Uniformity Ratios for High Pressure Sodium (HPS) and Metal Halide (MH) Lighting, for the type of lighting.

Morrisville, NC

February 1, 2021

Unified Development Ordinance

Page 5-141