Morrisville Unified Development Ordinance - February 2021.2

Article 11: Interpretation and Definitions Section 11.5. Terms and Uses Defined 11.4.3. Illuminated Signs

L ANDSCAPE A RCHITECT , R EGISTERED An individual registered by the State of North Carolina as qualified to practice landscape architecture by reason on their special knowledge of natural, physical, and mathematical sciences, and the principles and methodology of landscape architecture and landscape architectural design. L ANDSCAPING Shall be defined as any living plant material such as trees, shrubs, ground cover, and grass used in spaces void of impervious material or building structure. L ARGER C OMMON P LAN OF D EVELOPMENT OR S ALE Any area where multiple separate and distinct construction or land-disturbing activities will occur under one plan. A plan is any announcement or piece of documentation (including but not limited to a sign, public notice or hearing, sales pitch, advertisement, loan application, drawing, permit application, zoning request, or computer design) or physical demarcation (including but not limited to boundary signs, lot stakes, or surveyor markings) indicating that construction activities may occur on a specific plot. L EADERSHIP IN E NERGY AND E NVIRONMENTAL D ESIGN (LEED) Verification by the U.S. Green Building Council of a building or development that is designed and constructed using strategies aimed at improving environmental performance including, but not limited to, energy savings, water efficiency, C02 emissions reduction, and indoor environmental quality in the form of LEED certification. L EVEL OF S ERVICE (LOS) A scale that measures the amount of traffic that a roadway or intersection can accommodate, based on such factors as maneuverability, driver dissatisfaction, and delay. The following describe levels of service: • LOS A indicates a relatively free flow of traffic, with little or no limitation on vehicle movement or speed. • LOS B describes a steady flow of traffic, with only slight delays in vehicle movement and speed. All queues clear in a single signal cycle. • LOS C denotes a reasonably steady, high-volume flow of traffic, with some limitations on movement and speed, and occasional backups on critical approaches. • LOS D designates the level where traffic nears an unstable flow. Intersections still function, but short queues develop and cars may have to wait through one cycle during short peaks. • LOS E represents traffic characterized by slow movement and frequent (although momentary) stoppages. This type of congestion is considered severe, but is not uncommon at peak traffic hours, with frequent stopping, longstanding queues, and blocked intersections. • LOS F represents an unacceptable, forced or breakdown flow, representing jammed conditions. The amount of traffic approaching an intersection cannot be accommodated adequately. L EVEL OF S ERVICE , P RE - DEVELOPMENT Existing traffic plus background development traffic, but not including the proposed development traffic. L IGHT E MITTING D IODE (LED) An electronic semiconductor device that emits light when an electric current passes through it. They are considerably more efficient than incandescent bulbs, and rarely burn out. LEDs are used in many applications such as flat-screen video displays, and increasingly as general sources of light.

Morrisville, NC

February 1, 2021

Unified Development Ordinance

Page 11-49