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Project Name:TheAddington <br />Job Number:11177 <br />Analyst:B. Lawson <br />Source:Pad-Mounted Transformer <br />201.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />224.0Noise 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 />0.056.0 <br />L25 <br />0.0 <br />L2 <br />0.0 <br />L8 <br />0.00.0 <br />Noise Level <br />NOISE MODEL PROJECTIONS <br />Distance (feet) <br />6.0Reference (Sample) <br />-31.4-31.4 -31.4 -31.4-31.4-31.4224.0Distance Attenuation <br />-36.619.4 -36.6 -36.6-36.6-36.6 <br />201.0Shielding (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:R5 <br />-36.619.4 -36.6 -36.6-36.6-36.660 <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:Parking Lot Veh. Movements <br />9.0 <br />NOISE MODEL INPUTS <br />Noise Distance to Barrier: <br />20.0Noise 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 />11.0Barrier 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 />-4.5-4.5 -4.5 -4.5-4.5-4.520.0Distance Attenuation <br />58.133.5 36.5 50.544.5-10.5 <br />9.0Shielding (Barrier Attenuation)-6.0-6.0 -6.0 -6.0-6.0-6.0 <br />Raw (Distance + Barrier) <br />Observer Height:5.0 feet <br />Observer Location:R5 <br />58.133.5 36.5 50.544.5-10.560 <br />Condition:Operational <br />Barrier Elevation:0.0 feet <br />Minute Hourly Adjustment <br />STATIONARY SOURCE NOISE PREDICTION MODEL 10/7/2019 <br />2-212