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M MN MN NM MN an M__— OM I• MO NM EN MI N MI <br />TABLE 2-2 <br />AIRPORT NOISE INTERPOLATION <br />LAND USE GUIDANCE CHART ONE <br />LAND USE <br />GUIDANCE <br />ZONES <br />A <br />B <br />c <br />D <br />NOISE EXPOSURE <br />CLASS <br />MINIMAL <br />EXPOSURE <br />MODERATE <br />EXPOSURE <br />SIGNIFICANT <br />EXPOSURE <br />SEVERE <br />EXPOSURE <br />Ldn NOISE ASSESSMENT <br />SUGGESTED <br />NOISE EXPOSURE GUIDELINES NOISE CONTROLS <br />0 TO 55 ACCEPTABLE <br />55 TO 65 ACCEPTABLE <br />65 TO 75 <br />NORMALLY <br />UNACCEPTABLE <br />75 AND HIGHER UNACCEPTABLE <br />NORMALLY REOUIRES NO <br />SPECIAL CONSIDERATIONS ' <br />LAND USE CONTROLS <br />SHOULD BE CONSIDERED <br />NOISE EASEMENTS, I <br />LAND USE, AND OTHER <br />COMPATIBILITY CONTROLS <br />RECOMMENDED <br />CONTAINMENT WITHIN <br />AIRPORT BOUNDARY OR <br />USE OF POSITIVE <br />COMPATIBILITY CONTROLS <br />• RECOMMENDED <br />SOURCE: AIRPORT LAND USE COMPATIBILITY PLANNING, FAA, 1077; ENVIRONMENTAL CRITERIA AND STANDARDS, HUD, AUGUST 17, 1979. <br />