Section 78.30  Definitions

As used in these zoning regulations, unless the context otherwise requires:

            "Airport" – The Shelby County Airport located near Shelbyville, in the East ½ of the Southeast ¼ of Section 10, the West ½ of the Southwest ¼ of Section 11, and the West ½ of the East ½ of the Northeast ¼ of Section 11, all in Township 11 North, Range 3 East of the Third Principal Meridian, Shelby County, Illinois.

            "Airport Elevation" – The established elevation of the highest point on the useable landing area; the established airport elevation shall be 618.6' above mean sea level (AMSL).

            "Airport Hazard" – Any structure, growth, or use of land which obstructs the airspace required for, or is otherwise hazardous to the flight of aircraft in landing or taking off at the airport.

            "Airport Reference Point" – The point established as the approximate geographic center of the airport landing area and so designated as at Latitude 39º 24' 45" N and Longitude 88º 51' 30" W.

            "Alteration" – Any construction which would result in a change in height of lateral dimensions of an existing structure.

            "Approach, Transitional, Horizontal and Conical Surfaces" – These surfaces are defined in Federal Aviation Regulations, Objects Affecting Navigable Airspace (14 CFR 77).

            "Construction" – The erection or alteration of any structure either of a permanent or temporary character.

            "Department" – The Department of Transportation, Division of Aeronautics of the State of Illinois.

            "Growth" – Any object of natural growth, including trees, shrubs and foliage.

            "Height" – The overall height of the top of a structure including any appurtenance installed thereon, and for the purpose of determining the height limits in all zones set forth in these regulations and shown on the zoning map, the datum shall be mean sea level elevation unless otherwise specified.

            "Landing Area" – The area of the airport used for the landing, taking off or taxiing of aircraft.

            "Non-Conforming Use" – Any structure, growth, or use of land which is lawfully in existence at the time these zoning regulations or an amendment thereto becomes effective and does not then meet the requirements of said regulations.

            "Non-Precision Instrument Runway" – A runway having an existing instrument approach utilizing air navigation facilities with only horizontal guidance, or area type navigation equipment, for which a straight-in, non-precision instrument approach procedure has been approved, or planned, and for which no precision approach facilities are planned, or indicated on an FAA planning document or military service, military airport planning document.

            "Permit" – A permit issued by the Department of Transportation, Division of Aeronautics.

            "Person" – An individual, firm, partnership, corporation, company, association, joint stock association, or body politic, and includes a trustee, receiver, assignee, administrator, executor, guardian, or other representative, and including this State and the Division of Aeronautics.

            "Political Subdivision" – Any municipality, city, incorporated town, village, county, township, district, or authority, or any combination of two or more thereof, situated in whole or in part within any of the surfaces established by Section 233.104 hereof.

            "Precision Instrument Runway" – A runway having an existing instrument approach procedure utilizing an Instrument Landing System (ILS), or a Precision Approach Radar (PAR) or a runway for which a precision approach system is planned and is so indicated by an FAA Approved Layout Plan.

            "Runway" – An area of the airport designated for the landing or taking off of aircraft and consisting of either a specially prepared hard surface or turf.

            "Slope Ratio" – A numerical expression of a stated relationship of height to horizontal distance, e.g. 100 to 1 means one hundred feet of horizontal distance of each one foot vertically.

            "State" – The State of Illinois.

            "Structure" – Any form of construction or apparatus of a permanent or temporary character, constructed or installed by man, including any implements or material used in the erection, alteration or repair of such structure, including but without limitation, buildings, towers, smokestacks, and overhead transmission lines.

            "Utility Runway" – A runway that is constructed for and intended to be used for propeller driven aircraft of 12,500 pounds maximum gross weight or less.

            "Variance" – A grant of relief by the Department from the requirements of these zoning regulations, in accordance with Section VIII.

            "Visual Runway" – A runway intended solely for the operation of aircraft using visual approach procedures, with no straight-in instrument approach procedure and no instrument designation indicated on an FAA Approved Layout Plan, or by any planning document, submitted to the FAA by competent authority.