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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Parking Lot Veh. Movements <br />11.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />25.0Noise 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 />14.0Barrier 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 />-6.0-6.0 -6.0 -6.0-6.0-6.025.0Distance Attenuation <br />56.832.2 35.2 49.243.2-11.8 <br />11.0Shielding (Barrier Attenuation)-5.8-5.8 -5.8 -5.8-5.8-5.8 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R4 <br />56.832.2 35.2 49.243.2-11.860 <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 />111.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />125.0Noise 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 />14.0Barrier 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 />-21.9-21.9 -21.9 -21.9-21.9-21.9125.0Distance Attenuation <br />56.346.5 48.7 53.651.247.9 <br />111.0Shielding (Barrier Attenuation)-5.4-5.4 -5.4 -5.4-5.4-5.4 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R4 <br />56.346.5 48.7 53.651.247.960 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-209