Definitions. The following terms whenever used in this article shall
have the meanings as set forth below. Any such terms used in the singular
shall be held to include the plural. Any such terms or any other terms
not defined in this section used in the masculine shall be held to
include the feminine.
AIRPORT
An area of land set aside for the landing and taking off
of aircraft, and utilized or to be utilized in the interest of the
public for such purposes and commonly known as Fulton County Airport.
AIRPORT ELEVATION
The highest point of an airport's usable landing area
measured in feet above mean sea level. This is 877 feet above mean
sea level for the Fulton County Airport.
AIRPORT OPERATOR
The County of Fulton whose responsibility it is to maintain
and operate the Airport.
APPROACH SURFACE
A surface longitudinally centered on the extended runway center line, 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 §
84-59 of this article. The perimeter of the approach surface coincides with the perimeter of the approach zone.
CONICAL SURFACE
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.
HAZARD TO AIR NAVIGATION
An obstruction determined to have a substantial adverse effect
on the safe and efficient utilization of the navigable airspace.
HEIGHT
For the purpose of determining the height limits in all zones
set forth in this chapter and shown on the Zoning Map, the datum shall
be mean sea level elevation unless otherwise specified.
HORIZONTAL SURFACE
A horizontal plane 150 feet above the established airport
elevation, the perimeter of which coincides with the perimeter of
the horizontal zone. This is 1,027 feet above mean sea level for the
Fulton County Airport.
NONCONFORMING USE
Any structure, object of natural growth, or use of land which
is inconsistent with the provisions of this chapter or amendment thereto
existing on July 1, 1994.
NONPRECISION INSTRUMENT RUNWAY
A runway having an existing instrument approach procedure
utilizing air navigation facilities with only horizontal guidance,
or area type navigation equipment, for which a straight-in nonprecision
instrument approach procedure has been approved or planned.
OBSTRUCTION
Any structure, growth, or other object, including a mobile object, which exceeds a limiting height set forth in §
84-60 of this chapter.
PERSON
An individual, firm, partnership, corporation, company, association,
joint stock association, or government entity. It includes a trustee,
receiver, assignee, or a similar representative of any of them.
PRIMARY SURFACE
A surface longitudinally centered on a runway. When the runway has a specially prepared hard end of that runway, the primary surface extends 200 feet beyond each end of that runway, but when the runway has no specially prepared hard surface, or planned hard surface, the primary surface ends at each end of that runway. The width of the primary surface of a runway will be that width prescribed in Part 77 of the Federal Aviation Regulations (FAR) for the most precise approach existing or planned for either end of that runway and set forth in this Article
XIV of this chapter. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
RUNWAY
A defined area on an airport prepared for landing and takeoff
of aircraft along its length.
STRUCTURE
An object, including a mobile object, constructed or installed
by a person, including but without limitation, buildings, towers,
smokestacks, earth formations, and overhead transmission lines.
TRANSITIONAL SURFACES
These surfaces extend outward at 90° angles to the runway
center line and the runway center line extended at a slope of seven
feet horizontal for each foot vertically (7:1) from the sides of the
primary and approach surfaces to where they intersect the horizontal
and conical surfaces.
TREE
Any object of natural growth.
UTILITY RUNWAY
A runway that is constructed for and intended to be used
by propeller-driven aircraft of 12,500 pounds maximum gross weight
and less.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using
visual approach procedures with straighten instrument approach procedure.