<div class="chunk-title">Sec. 2.5-3. - Definitions.</div>
<div class="chunk-content">
            <p class="p0">
               <span class="ital">Airport.</span> Currituck County Airport.
               </p>
            <p class="p0">
               <span class="ital">Airport elevation.</span> Eighteen feet above mean sea level.
               </p>
            <p class="p0">
               <span class="ital">Approach surface.</span> A surface longitudinally centered on the extended runway centerline, extending outward
               and upward from the end of the primary surface and at the same slope as the approach
               zone height limitation slope set forth in subsection <a href="" data-chunk-id="COOR_CH2.5AIARHERE_S2.5-5AIZOHELI" class="section-link" data-product-id="12419">2.5-5</a>(1). In plan the perimeter of the approach surface coincides with the perimeter of
               the approach zone.
               </p>
            <p class="p0">
               <span class="ital">Approach, transitional, horizontal, and conical zones.</span> Those zones as set forth in <a href="" data-chunk-id="COOR_CH2.5AIARHERE_S2.5-4AIZO" class="section-link" data-product-id="12419">section 2.5-4</a>.
               </p>
            <p class="p0">
               <span class="ital">Conical surface.</span> A surface extending outward and upward from the periphery of the horizontal surface
               at a slope of 20 to one for a horizontal distance of 4,000 feet.
               </p>
            <p class="p0">
               <span class="ital">Hazard to air navigation.</span> An obstruction determined to have a substantial adverse effect on the safe and efficient
               utilization of the navigable airspace.
               </p>
            <p class="p0">
               <span class="ital">Height.</span> For the purpose of determining the height limits in all zones set forth in this chapter
               and shown on the airport area height restriction zone map, the datum shall be mean
               sea level elevation unless otherwise specified.
               </p>
            <p class="p0">
               <span class="ital">Horizontal surface.</span> A horizontal plane 150 feet above the established airport elevation, the perimeter
               of which in plan coincides with the perimeter of the horizontal zone.
               </p>
            <p class="p0">
               <span class="ital">Nonconforming structure.</span> Any preexisting structure which is inconsistent with the provisions of this chapter
               or an amendment thereto.
               </p>
            <p class="p0">
               <span class="ital">Obstruction.</span> Any structure, growth, or other object, including a mobile object, which exceeds
               a limiting height set forth in <a href="" data-chunk-id="COOR_CH2.5AIARHERE_S2.5-5AIZOHELI" class="section-link" data-product-id="12419">section 2.5-5</a>.
               </p>
            <p class="p0">
               <span class="ital">Person.</span> An individual, firm, partnership, corporation, company, association, joint stock
               association, or governmental entity; including a trustee, a receiver, an assignee,
               or a similar representative of any of them.
               </p>
            <p class="p0">
               <span class="ital">Precision instrument runway.</span> A runway having an existing instrument approach procedure utilizing an instrument
               landing (ILS) or precision approach radar (PAR). It also means a runway for which
               a precision approach system is planned and is so indicated on an approved airport
               layout plan or any other planning document.
               </p>
            <p class="p0">
               <span class="ital">Primary surface.</span> A surface longitudinally centered on a runway. When the runway has a specially prepared
               hard surface, the primary surface extends 200 feet beyond each end of that runway.
               The width of the primary surface is set forth in subsection <a href="" data-chunk-id="COOR_CH2.5AIARHERE_S2.5-4AIZO" class="section-link" data-product-id="12419">2.5-4</a>(1). The elevation of any point on the primary surface is the same as the elevation
               of the nearest point on the runway centerline.
               </p>
            <p class="p0">
               <span class="ital">Runway.</span> A defined area of an airport prepared for landing and takeoff of aircraft along its
               length.
               </p>
            <p class="p0">
               <span class="ital">Structure.</span> An object, including a mobile object, constructed or installed by man, including
               but without limitation, buildings, towers, cranes, smokestacks, earth formation, and
               overhead transmission lines.
               </p>
            <p class="p0">
               <span class="ital">Transitional surfaces.</span> These surfaces extend outward at 90-degree angles to the runway centerline and the
               runway centerline extended at a slope of seven feet horizontally for each foot vertically
               from the sides of the primary and approach surfaces to where they intersect the horizontal
               and conical surfaces. Transitional surfaces for those portions of the precision approach
               surfaces, which project through and beyond the limits of the conical surface, extend
               a distance of 5,000 feet measured horizontally from the edge of the approach surface
               and at 90-degree angles to the extended runway centerline.
               </p>
            <p class="historynote0">
               (Ord. of 5-7-01, Â§ 14-3)
               </p>
            <p class="refcross0" block_type="hang"><b>Cross referenceâ€” </b>
               Definitions and rules of construction generally, <a href="" data-chunk-id="COOR_CH1GEPR_S1-2DERUCO" class="section-link" data-product-id="12419">Â§ 1-2</a>.
               </p></div>