Safety Military Compatibility Area ( Figure 9 )
The proposed Safety MCA would regulate compatible land use types and densities / intensities within the Clear Zones ( CZs ) and Accident Potential Zones ( APZs ) I and II of Travis AFB ’ s runway . Each of these would be a subzone of the Safety MCA . The current location of each safety subzone is based on the airfield layout and air operations identified in Travis AFB ’ s AICUZ Report . The boundaries of each subzone may need to be amended when the AICUZ study is updated .
A Safety MCA is needed to prevent the development of incompatible land uses in areas with the greatest potential for an accident . These safety zones were identified as a result of the Air Force ’ s guidance that defines CZs and APZs as the areas where an aircraft accident is most likely to occur ( in the unlikely event that one was to occur ). While the potential for an aircraft mishap is lower in the APZs in comparison to the CZs , the APZs are still one of the most likely places for an aircraft mishap to occur . The APZs follow departure , arrival , and pattern flight tracks and are based upon analysis of historical data .
Within the CZ , most types of land use are incompatible with aircraft operations . It is recommended that no development be located within CZs . Compatibility guidelines preclude land uses that concentrate large numbers of people ( such as residences , apartments , hospitals , churches , and schools ) from being constructed within the APZs . While the likelihood of an accident is remote , the Air Force recommends low density land uses within the APZs to ensure the maximum protection of public health and property .
Low density single family residential uses ( 1 to 2 units per acre ) can be compatible when located within APZ II . Other generally compatible uses include agriculture , limited intensity office / retail , and light industrial .
Noise Military Compatibility
Noise is often a concern to the public surround flying missions . The Noise MCA includes all land within Travis AFB noise contours greater than 6 Noise Equivalent Level ( CNEL ) associated with m Residential developments and other noise‐sens MCA may be subject to sound attenuation mea impacts and achieve a maximum interior noise
Without a requirement for sound attenuation v requirements , certain uses such as residential , a large groups , including schools , healthcare facil compatible within areas that experience noise l greater . Uses that are compatible within airport retail and manufacturing / industrial when inter CNEL 70 dB . Local building codes can be used to noise‐attenuation measures are incorporated in the Noise MCA .
BASH Military Compatibility ( Figure 11 )
The proposed Bird / Wildlife Aircraft Strike Haza the airport operational area at Travis AFB for a is meant to include areas near the airfield with concentrations of birds or bird‐attractant uses w strikes with aircraft can have serious safety con for loss of life or aircraft . Even minor bird strike aircraft and interfere with training missions . Th associated with the BASH MCA is a Federal Avia recommended standard for managing bird attra
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