The Airspace Overlay (“AO”) district shall consist of Airport Instrument and Non-Instrument Approach Surface Areas, Airport Transitional Surface Areas, Airport Horizontal Surface Areas and Conical Surface Areas, Heliport Approach Surface Areas and Heliport Transitional Surface Areas as defined in this Ordinance and indicated on the official zoning map where the AO district is identified. The following development standards shall apply to all property within the AO district; provided, however, if the development standards herein are less restrictive than or in any way contradictory to the standards promulgated by the Federal Aviation Administration (FAA), the FAA’s standards shall govern and control.
A. Development Standards.
AO STANDARDS
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AO STANDARDS
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Height Limits for The Airport Instrument Approach Surface | One foot (1') in height for each one hundred feet (100') in horizontal distance beginning at a point 200 feet from the end of the instrument runway and extending to a distance of ten thousand, two hundred feet (10,200') from the end of the runway; thence one foot (1') in height for each fifty feet (50') in horizontal distance to a point fifty thousand, two hundred feet (50,200') from the end of the runway. |
Height Limits for The Airport Non-Instrument Approach Surface Area | One foot (1') in height for each fifty feet (50') in horizontal distance beginning at a point two hundred feet (200') from the end of the non-instrument runway and extending to a point five thousand two hundred feet (5,200') from the end of the runway; thence one foot (1') in height for each sixteen feet (16') in horizontal distance to a horizontal distance of ten thousand, two hundred feet (10,200') from the end of the runway. |
Height Limits for The Airport Transitional Surface Area | One foot (1') in height for each seven (7) feet in horizontal distance beginning at a point two hundred fifty feet (250') feet from the centerline of non-instrument runways and five hundred feet (500') from the centerline of instrument runways, measured at right angles to the longitudinal centerline of the runway, extending upward to a maximum height of one hundred fifty feet (150') above the established airport elevation as indicated on the Airspace District Zoning Map; one foot (1') vertical height for each seven feet (7') of horizontal distance measured from the outer lines of all Instrument and Non-Instrument Approach Surface Areas for the entire length of said Approach Surface Areas, extending to their intersection with the outer line of the Conical Surface Area; and, beyond said point of intersection, beginning at the outer lines of all Instrument Approach Surface Areas and extending a horizontal distance to five thousand feet (5,000') therefrom, measured at right angles to the continuation of the runway centerline, one foot (1') vertical height for each seven feet (7') of horizontal distance. |
Height Limit for The Airport Horizontal Surface Area | One hundred fifty feet (150') above the established airport elevation as indicated on the Airspace District Zoning Map. |
Height Limit for The Airport Conical Surface Area | One foot (1') in height for each twenty feet (20') of horizontal distance beginning at the periphery of the Horizontal Surface Area and measured perpendicularly to the periphery of the Horizontal Surface Area to a height of three hundred fifty feet (350') above the airport elevation. |
Height Limits - Heliports | Except as otherwise provided herein, no structure or tree shall be erected, altered, allowed to grow or maintained within the Airspace District to a height in excess of the following height limits herein established for the applicable Heliport Approach Surface Area and Heliport Transitional Surface Area, as defined in this Ordinance and designated on the Airspace District Zoning Map. (Such height limits shall be computed from the applicable heliport landings and take-off area elevation as designated on the Airspace District zoning Map). |
Height Limit for The Heliport Approach Surface Area | One foot (1') in height for each eight feet (8') in horizontal distance beginning at the end of the heliport primary surface (such primary surface coinciding in size and shape with the designated take-off and landing area of the heliport) with the same width as the primary surface and extending outward and upward for a horizontal distance of four thousand feet (4,000') where its width is five hundred feet (500'). |
Height Limit for The Heliport Transitional Surface Area | One foot (1') in height for each two feet (2') in horizontal distance extending outward and upward from the lateral boundaries of the heliport primary surface and from the approach surface for a distance of two hundred fifty feet (250') measured horizontally from the centerline of the primary and approach surfaces. Provided, however, if any area is subject to more than one of the above height limitations, the more restrictive limitation shall control. Provided further, however, nothing in this Ordinance shall be construed as prohibiting the erection, construction, growth or maintenance of any structure or tree to a height of fifty feet (50') or less above the surface of the land. |
PERFORMANCE STANDARDS: The following performance standards shall apply to all land within the perimeter of the Airport Conical Surface Area and Heliport Transitional Surface Area as defined in this Ordinance and indicated on the Airspace District Zoning Map.
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Interface with Communications | No use shall create interference with any form of communication the primary purpose of which is for air navigation. |
Glare; Marking and Lighting of Airspace Hazards | a. All lights shall be located or shielded in such a manner that they do not interfere with runway, taxi, tower or any other airport and heliport lights or result in glare which may interfere with the use of the airport and heliport in landing, taking-off or maneuvering of aircraft. b. Such markers and lights as may be required by the Federal Aviation Administration, the Indiana Department of Transportation, Division of Aeronautics, or the Greenwood Board of Aviation Commissioners to indicate to air crews the presence of structures or trees constituting airspace hazards, as defined in this Ordinance, shall be permitted. |
(Ord. 20-29, § 2, 9-21-20)