Compilation of Noise Programs in Areas Outside DNL 65 (2009) / Chapter Skim
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Pages 13-17
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From page 13... ...
Half (50%) reported that noise abatement flight tracks were developed to address noise both inside and outside DNL 65, and nearly 41% reported that the noise abatement tracks were developed primarily to address noise outside DNL 65.
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15 FIGURE 2 Types of noise abatement flight tracks at surveyed airports. FIGURE 3 Types of noise abatement procedures at surveyed airports.
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0 5 10 15 20 25 Reducing noise Reducing complaints Number of Respondents Not at all effective Somewhat effective Moderately effective Very effective "moderately effective" or "very effective" at reducing noise over noise-sensitive communities outside DNL 65, but somewhat less effective at reducing complaints outside DNL 65. Also, a higher percentage of respondents reported that flight tracks are "very effective" at reducing noise (36%)
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0 5 10 15 20 25 Reducing noise Reducing complaints Number of Respondents Not at all effective Somewhat effective Moderately effective Very effective FIGURE 8 Effectiveness of ground noise procedures at surveyed airports.
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From page 17... ...
Respondents reported that ground noise control procedures are "very effective" at reducing noise complaints (52%) (see Figure 8)
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