NEW SMYRNA BEACH MUNICIPAL AIRPORT AIRPORT MASTER PLAN UPDATE
MILITARY OPERATING AREA - Airspace established to separate or segregate certain types of non-hazardous military activities from IFR flight traffic and identify areas where these activities are conducted for VFR flight traffic.
MINIMUM DESCENT ALTITUDE - The lowest altitude in feet above mean sea level (MSL) a pilot may descend during a given type final instrument approach to a runway.
MINIMUM ENROUTE ALTITUDE - Lowest height above MSL between air navigation radio fixes at which acceptable signals can be received and obstructions between the fixes can be safely cleared.
MINIMUM OBSTRUCTION CLEARANCE ALTITUDE - The lowest height in feet AMSL between air navigation radio fixes on an identified airway or route segment which provides safe obstruction clearance for the entire route segment and assures acceptable radio signal coverage only within 25 nautical miles of the navigation radio station.
MITIGATION MEASURE - An action that can be planned or taken to alleviate (mitigate) an adverse environmental impact. Mitigation includes:
Avoiding the impact altogether by not taking a certain action or parts of an action.
Minimizing the impact by limiting the degree or magnitude of the action and its
Rectifying the impact by repairing, rehabilitating, or restoring the affected environment.
Reducing or eliminating the impact over time by preservation and maintenance
operations during the life of the action. (5) Compensating for the impact by replacing or providing substitute resources or environments.
A proposed airport development project, or alternatives to that project, may constitute a mitigation measure.
NAVAID - See AIR NAVIGATION FACILITY.
NOISE - Any sound that is considered undesirable because it interferes with speech and hearing, or is intense enough to damage hearing, or is otherwise annoying.
NOISE ABATEMENT PROCEDURES - Changes in runway use, flight approach and departure routes and procedures, and other air traffic procedures that are made to shift adverse aviation effects away from noise-sensitive areas (such as residential neighborhoods).
NOISE ATTENUATION OF BUILDINGS - The use of building materials to reduce noise through absorption, transmission loss, and reflection of sound energy.
NOISE CONTOURS - Lines drawn on a map that connect points of equivalent Ldn or CNEL values. They are usually drawn in 5-Ldn intervals, such as connections of Ldn 75 values, Ldn 70 values, Ldn 65 values, and so forth.
HOYLE, TANNER & ASSOCIATES, INC.