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f _ __ f _�ptedtbIOthe/Countiest <br /> 9.A. - Page 166 <br /> 3.3.4 Overflight <br /> 3.3.4.11Objectivev <br /> Noise from the overhead flight of aircraft can be annoying and intrusive in locations beyond the <br /> limits of the noise contours identified in Section 3.3.1. While sensitivity to aircraft overflights <br /> will vary from person to person,the basic intent of overflight policies is to warn people near an <br /> airport of the presence of aircraft so that they have the ability to make informed decisions <br /> regarding the acquisition or lease of property within the influence area of an airport. <br /> 3.3.4.2Evaluationv <br /> Unlike other compatibility factors such as noise, safety, or airspace protection, overflight <br /> compatibility policies do not restrict how land can be developed or used; rather,the policies in <br /> this section form the requirements for notification about airport proximity and aircraft overflights. <br /> These policies are to be applied by the ALUC when evaluating new development. The boundaries <br /> of the overflight zones around HWD are identified in Figure 3-6 (from the ALUCP). <br /> 3.3.4.3 Measurementy <br /> Determining the boundaries of overflight noise exposure is difficult to determine as these <br /> locations extend well beyond the defined CNEL contours normally associated with areas of high <br /> noise exposure. The general locations over which aircraft routinely fly,including when they <br /> approach and depart an airport is generally used as an indicator of overflight annoyance concern. <br /> Furthermore,the FAA has determined that for the purposes of NEPA changes in aircraft flight <br /> tracks below 3,000 feet,AGL require more rigorous environmental review than those changes <br /> occurring above 3,000 feet AGL. <br /> 3.3.4.4TactorsOetermining .Overflighberiteriav <br /> In determining the overflight criteria for HWD,the following factors were considered: <br /> of Limitations of ALUC authority of Existing Land Uses. In order to be most effective, <br /> overflight policies would ideally apply to all real estate transactions; existing and new. <br /> However,the ALUC only has authority to set requirements for new development and to <br /> define the boundaries within which real estate transfer disclosure under state law is <br /> appropriate. <br /> bf Need for continuity of real estate disclosure to future property owners and tenants. It is <br /> recommended that real estate notifications run with the land and is provided to prospective <br /> future owners and tenants. <br /> cf Excessiveness of avigation easement dedication used solely for buyer awareness purposes. <br /> Avigation easements require the conveyance of property rights from the owner to the party <br /> owning the easement, and as such, are best suited to locations where land use restrictions <br /> for noise, safety, or airspace protection is necessary. <br /> SanfCarlosfAirportV C-20 ESAfAirportsf/130753f <br /> ALUCPf W hitef Pape/ Junef2014f <br />