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6 <br />CONSERVATION AND <br />ENVIRONMENTAL MITIGATION ELEMENT <br />NOISE ATTENUATION OBJECTIVE <br />TO ACHIEVE ACCEPTABLE NOISE LEVELS FOR EACH LAND USE WITHIN THE PLANNING <br />AREA WHILE MINIMIZING RELIANCE ON TRADITIONAL SOUNDWALLS. <br />Noise Attenuation Policy 1: Location of Noise Sensitive Uses. Distribute <br />Phase I land uses as shown in the band Use Diagram (Figure 3-1) to minimize <br />the location of sensitive uses near noise sources. <br />Noise Attenuation Yolicy 2: Noise Attenuation Strategies. Utilize a <br />combination of setbacks, berms, walls, building construction techniques and <br />pftysical orientation of buildings and uses as shown in the Noise Mitigation <br />Diagram: Figure 6-1 to achieve acceptable noise levels. <br />CiUIDHLINES: <br />2.1 For exterior noise in Phase I residential uses located in areas subject to <br />noise from roadways: <br />Construct berms, soundwalls and commercial/office buildings as <br />shown in Figure 6-1 to achieve an exterior noise level of 65 dBA <br />Ldn a[ most Phase I residential areas. <br />Residences closest to a roadway sound source which cannot be <br />buffered by the sound berm/wall plan shown in Figure 6-1 may <br />be constructed without further exterior noise mitigation. <br />Construction of quiet areas in rear yards, however, is <br />encouraged. <br />6-1 <br />