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Abbreviated Aviation Terms and Names: - page 19 / 22

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NEW SMYRNA BEACH MUNICIPAL AIRPORT AIRPORT MASTER PLAN UPDATE

APPENDIX A

NOISE CONTROL PLANS - Documentation by an airport sponsor of actions to be taken by the sponsor to reduce the effect of aviation noise. These actions are to be taken by the sponsor either alone or in cooperation with the FAA, airport users, and affected units of local government, with appropriate comments from affected citizens. Alternative actions should be considered, particularly where proprietary use restrictions on aircraft operations are involved.

NOISE LEVEL REDUCTION (NLR) - The noise reduction between two areas or rooms is the numerical difference, in decibels, of the average sound pressure levels in those areas or rooms. A measurement of noise reduction combines the effect of the transmission loss performance of structures separating the two areas or rooms and the effect of acoustic absorption present in the receiving room.

NOISE-SENSITIVE LAND USE - Land uses that can be adversely affected by high levels of aircraft noise. Residences, schools, hospitals, religious facilities, libraries, and other similar uses are often considered sensitive to noise.

NORMALLY UNACCEPTABLE (DNL above 65 but not exceeding 75 decibels) - The noise exposure is significantly more severe; barriers may be necessary between the site and prominent noise sources to make the outdoor environment acceptable; special building constructions may be necessary to ensure that people indoors are sufficiently protected from outdoor noise.

OBSTACLE FREE ZONE (OFZ) - The OFZ is a three-dimensional volume of airspace that supports the transition of ground-to-airborne-aircraft operations (and vice versa). The OFZ clearing standard precludes taxiing and parked airplanes and object penetrations, except for frangible NAVAIDS whose location is fixed by function. The runway OFZ and, when applicable, the inner- approach OFZ, and the inner-transitional OFZ compose the obstacle free zone.

OBSTRUCTION - An object that exceeds a limiting height or penetrates an imaginary surface described by current Federal Aviation Regulations (Part 77).

PASSENGER FACILITY CHARGES (PFCs) - See FAR PART 158.

PATTERN - The configuration or form of a flight path flown by an aircraft, or prescribed to be flown, as in making an approach to a landing.

PRECISION APPROACH PROCEDURE - A standard instrument procedure for an aircraft to approach an airport in which an electronic glide scope is provided - for example, an instrument landing system and precision approach radar.

PREFERENTIAL RUNWAY USE (PROGRAM) - A noise abatement action whereby the FAA Air Traffic Division, in conjunction with the FAA Airports Division, assists the airport sponsor in developing a program that gives preference to the use of a specific runway(s) to reduce over-flights of noise-sensitive areas.

HOYLE, TANNER & ASSOCIATES, INC.

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