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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Parking Lot Veh. Movements <br />9.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />24.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:0.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:6.0 <br />Noise Source Height:5.0 feet <br />feet <br />Drop Off Coefficient:15.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />15.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />68.644.0 <br />L25 <br />47.0 <br />L2 <br />61.0 <br />L8 <br />55.00.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />10.0Reference (Sample) <br />-5.7-5.7 -5.7 -5.7-5.7-5.724.0Distance Attenuation <br />57.032.4 35.4 49.443.4-11.6 <br />9.0Shielding (Barrier Attenuation)-5.9-5.9 -5.9 -5.9-5.9-5.9 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R2 <br />57.032.4 35.4 49.443.4-11.660 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Courtyard Activity <br />183.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />206.0Noise Distance to Observer <br />feet <br />feet <br />Noise Source Elevation:0.0 <br />Observer Elevation:0.0 feet <br />feet <br />Barrier Height:6.0 <br />Noise Source Height:5.0 feet <br />feet <br />Drop Off Coefficient:20.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />23.0Barrier Distance to Observer:feet <br />Barrier Type (0-Wall, 1-Berm):0 <br />Leq LmaxL50 <br />83.673.8 <br />L25 <br />76.0 <br />L2 <br />80.9 <br />L8 <br />78.575.2 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />10.0Reference (Sample) <br />-26.3-26.3 -26.3 -26.3-26.3-26.3206.0Distance Attenuation <br />52.142.3 44.5 49.447.043.7 <br />183.0Shielding (Barrier Attenuation)-5.2-5.2 -5.2 -5.2-5.2-5.2 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R2 <br />52.142.3 44.5 49.447.043.760 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-202