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Description: In total, the Air Force Base features six compatibility zones, A, B1, B2, C, D, and E, as well as two overlay zones, the ALZ Training Overlay Zone and the Height Review Overlay Zone. Below, each of the compatibility zones and overlay zones are generally described with tabular information relating to density and intensity requirements and additional zone-specific criteria. These details are also summarized in Table 1. Following this section, the Plan provides additional general, noise, safety, aircraft protection, and overflight regulations and supporting criteria that apply to each of the compatibility zones.Figure 4 depicts two wildlife hazard zones, the Bird Strike Hazard Zone and the Outer Perimeter, which contain specific development requirements. The Bird Strike Hazard Zone is delineated by a radius 14,500 feet from the runway centerlines. The Outer Perimeter is located five miles from the farthest edge of the Air Force Base’s air operations area (AOA), which the FAA recommends for any hazardous wildlife attractant if the attractant could cause hazardous wildlife movement into or across the approach or departure airspace. FAA Advisory Circular 150/5200-33B provides guidance for minimizing the risks that certain wildlife species pose to aircraft. The Outer Perimeter is based on the fact that Travis AFB serves turbine powered aircraft. Together, these perimeters encompass portions of all compatibility zones and present additional conditions on certain types of land uses that are known to attract wildlife that are hazardous to aircraft operations. See FAA Circular 150/5200-33B in Appendix G for specific land use details and restrictions, including a description of conflicting land uses.

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