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<br />Proposals for Revising Northern California Metroplex – Alameda County/Contra Costa County 9 <br />noise abatement. <br /> <br /> <br />Table 1: Comparison of noise levels for HUSSH and straight-out (day time) departures from runway 30 at Oakland Airport, <br />showing no divergences in the noise levels. Data collected for 44 days by portable noise monitor installed at 551 Creedon Circle <br />in Bay Farm Island, Alameda by Oakland Airport noise office. <br /> <br />Days <br />No. <br />HUSSH <br />Mean (dB) <br />No. of HUSSH <br />Flights. <br />Straight out <br />Mean (dB) <br />No. of <br />Straight Out <br />Flights <br />HUSSH SEL <br />Mean (dB) <br />Straight out <br />SEL <br />Mean (dB) <br />11 71.92 24 72.69 117 82.74 83.41 <br />2 74.52 29 73.48 143 83.78 84.20 <br />3 72.57 15 72.59 96 82.54 80.91 <br />4 71.46 19 73.5 127 81.64 83.48 <br />5 73.10 27 72.91 140 82.92 83.27 <br />6 69.87 28 73.37 150 78.09 83.15 <br />7 72.16 29 73.13 126 82.57 82.90 <br />8 71.34 28 72.39 134 80.25 81.61 <br />9 73.78 22 72.96 159 83.33 83.62 <br />10 69.75 25 71.76 133 78.01 80.36 <br />11 73.65 16 74.15 147 83.04 84.39 <br />12 72.63 26 73.24 132 83.70 83.30 <br />13 72.41 27 72.69 144 82.73 83.28 <br />14 69.79 25 74.11 173 77.94 83.56 <br />15 73.08 28 69.67 94 82.15 76.79 <br />16 70.04 17 73.68 230 80.43 83.89 <br />17 71.67 31 72.19 130 82.28 82.98 <br />18 71.71 30 72.56 145 81.43 83.03 <br />19 71.57 31 72.80 138 82.33 83.29 <br />20 69.57 19 72.74 753 79.47 83.32 <br />21 72.58 20 74.14 126 82.71 83.42 <br />22 71.88 17 72.93 91 81.64 83.37 <br />23 72.66 7 72.66 123 79.87 82.57 <br />24 72.68 13 72.21 125 82.83 82.31 <br />25 72.53 29 72.53 121 82.85 81.53 <br />26 72.35 28 72.74 149 82.46 83.19 <br />27 72.02 24 72.86 178 82.66 82.42 <br />28 71.45 25 72.45 178 82.1 82.64 <br />29 70.62 15 72.11 119 80.66 82.20 <br />30 72.96 37 72.90 144 81.30 82.08 <br />31 71.91 25 72.82 226 82.48 81.87 <br />32 71.30 27 72.08 149 81.60 80.10 <br />33 71.42 27 72.35 143 81.34 83.04 <br />34 71.33 21 72.03 155 82.15 82.64 <br />35 72.24 27 72.10 142 83.10 82.96 <br />36 70.82 14 72.63 94 81.81 80.71 <br />37 71.37 9 71.40 110 81.13 81.96 <br />38 71.35 25 71.71 140 81.06 82.32 <br />39 69.70 7 72.59 142 78.17 82.86 <br />40 74.64 30 71.13 126 84.25 79.00 <br />41 73.60 21 74.88 162 83.20 84.41 <br />42 72.31 23 72.01 124 81.84 81.16 <br />43 71.39 16 72.78 98 81.38 83.00 <br />44 70.16 17 72.70 127 80.20 83.26 <br /> <br />201