Safety MCA
The Safety MCA is designed to address compatible land use types and densities / intensities of development within the Clear Zones ( CZs ) and Accident Potential Zones ( APZs ) I and II of Travis AFB ’ s runways . Within the CZs , most types of land use are incompatible with aircraft operations . Compatibility guidelines preclude land uses that concentrate large numbers of people ( such as residential uses including multifamily dwellings , hospitals and medical facilities , places of worship , educational facilities , cultural facilities and recreational facilities ) within the APZs .
Noise MCA
The Noise MCA includes all land located off-installation within Travis AFB noise contours greater than 65 decibels ( dB ) Community Noise Equivalent ( CNEL ) associated with military aircraft activities .
Recommendations include :
• The TSS Partner jurisdictions should update their general plan and amend their zoning regulations to comply with the recommended guidelines from the Travis AFB Air
Recommendations include :
• TSS Partner jurisdictions should continue to update general plans and amend zoning regulations as necessary to incorporate the AICUZ recommended land uses in the safety and noise zones .
• TSS Partner jurisdictions should continue to update and adopt land use maps , and supportive goals , objectives , and policies that encourage land use patterns compatible with Travis AFB for new development and appropriate capital improvement investments .
Installation Compatible Use Zone ( AICUZ ) Study and Land Use Compatibility Plan ( LUCP ).
• Staff from the TSS Partner jurisdictions within noise contours should be consulted in any AICUZ updates to determine actual incompatibility of existing structures in noise zones based on densities and construction methods used .
BASH MCA
The Bird Aircraft Strike Hazard ( BASH ) MCA extends from the air operations area on Travis AFB for a radius of five miles . This MCA includes areas near the airfield with the highest safety concerns if concentrations of birds or bird-attractant uses were located there . Bird strikes with aircraft can create serious safety concerns . The five mile distance associated with the BASH MCA is a Federal Aviation Administration ( FAA ) recommended standard for managing bird attractants around runways .
Recommendations include :
• Travis AFB should provide educational information to local jurisdictions , agencies and landowners in the region relative to reducing the potential for bird and wildlife attractants that may impede safe aircraft operations .
• Travis AFB should improve coordination with California Natural Resources Agency to limit restoration projects within five miles of Travis AFB that could increase BASH risk .
Imaginary Surfaces MCA
The purpose of the Imaginary Surfaces MCA is to regulate the height of all structures and buildings within the area defined by FAA guidance and Air Force AICUZ instructions . The imaginary surfaces are a 3‐D geographic area comprising approach and departure airspace corridors and safety buffers . Vertical obstruction heights are a major concern for flight operations and training due to the potential for a structure to extend into navigable airspace .
Recommendations include :
• Consider ordinances regulating unmanned aircraft to establish areas where such aircraft may and may not be permissible due to potential impacts to flight operations .
• Travis AFB should implement scheduling coordination procedures to de-conflict operations and accommodate access by local farming interests when they need to fly in or through Military Training Routes and Restricted Areas , when they are active .
• Travis AFB should work with appropriate jurisdictions to limit heights in these areas through zoning overlays or similar techniques .
Land MCA
The Land MCA comprises a one-mile radius around the boundary of Travis AFB and is designed to enhance physical security at the Base and work with surrounding landowners .
Recommendations include :
• Travis AFB should work with neighboring property owners to keep a 15‐foot area around the Base mowed to reduce fire risks .
• Travis AFB should prepare a strategic viewshed analysis to prioritize critical view corridors and sensitive facilities on-Base . Once these are identified , the Base should explore appropriate natural and man-made screening systems to protect sensitive activities and systems within Travis AFB . Based on cost , appropriate Department of Defense ( DOD ) funding sources should be identified to implement screening .
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