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Observer Location: R1 Project Name: TheAddington <br />Source: Roof -Top Parking Job Number: 11177 <br />Condition: Operational Analyst. B. Lawson <br />NOISE MODEL INPUTS <br />Noise Distance to Observer <br />601.0 feet <br />Noise Distance to Barrier. <br />441.0 feet <br />Barrier Distance to Observer: <br />160.0 feet <br />Observer Elevation: <br />0.0 feet <br />Noise Source Elevation: <br />40.0 feet <br />Barrier Elevation: <br />0.0 feet <br />Barrier Height: <br />6.0 feet <br />Noise Source Height. <br />5.0 feet <br />Observer Height: <br />5.0 feet <br />Barrier Type (0-Wall, f-Berm): <br />0 <br />Drop Off Coefficient. <br />15.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />NOISE MODEL PROJECTIONS <br />Noise Level Distance (feet) Leq L50 L25 L8 L2 Lmax <br />Reference (Sample) <br />10.0 0.0 <br />44.0 <br />47.0 <br />55.0 <br />61.0 <br />68.6 <br />Distance Attenuation <br />601.0 -26.7 <br />-26.7 <br />-26.7 <br />-26.7 <br />-26.7 <br />-26.7 <br />Shielding (Barrier Attenuation) <br />441.0 -7.9 <br />-7.9 <br />-7.9 <br />-7.9 <br />-7.9 <br />-7.9 <br />Raw (Distance + Barrier) <br />-34.6 <br />9.4 <br />12.4 <br />20.4 <br />26.4 <br />34.0 <br />60 Minute Hourly Adjustment <br />-34.6 <br />9.4 <br />12.4 <br />20.4 <br />26.4 <br />34.0 <br />Observer Location: R2 Project Name: TheAddington <br />Source: Air Conditioning Unit (Roof -Top) Job Number: 11177 <br />Condition: Operational Analyst: B. Lawson <br />NOISE MODEL INPUTS <br />Noise Distance to Observer <br />218.0 feet <br />Noise Distance to Barrier. <br />215.0 feet <br />Barrier Distance to Observer: <br />3.0 feet <br />Observer Elevation: <br />0.0 feet <br />Noise Source Elevation: <br />50.0 feet <br />Barrier Elevation: <br />50.0 feet <br />Barrier Height: <br />4.0 feet <br />Noise Source Height. <br />5.0 feet <br />Observer Height. <br />5.0 feet <br />Barrier Type (0-Wall, f-Berm): <br />0 <br />Drop Off Coefficient: <br />20.0 <br />20 = 6 dBA per doubling of distance <br />15 = 4.5 dBA per doubling of distance <br />NOISE MODEL PROJECTIONS <br />Noise Level Distance (feet) Leq L50 L25 L8 L2 Lmax <br />Reference (Sample) <br />5.0 0.0 <br />74.4 <br />76.1 <br />77.4 <br />77.7 <br />78.2 <br />Distance Attenuation <br />218.0 -32.8 <br />-32.8 <br />-32.8 <br />-32.8 <br />-32.8 <br />-32.8 <br />Shielding (Barrier Attenuation) <br />215.0 -19.0 <br />-19.0 <br />-19.0 <br />-19.0 <br />-19.0 <br />-19.0 <br />Raw (Distance + Barrier) <br />-51.8 <br />22.6 <br />24.3 <br />25.6 <br />25.9 <br />26.4 <br />39 Minute Hourly Adjustment <br />-53.7 <br />20.7 <br />22.4 <br />23.7 <br />24.0 <br />24.5 <br />