Laserfiche WebLink
<br />Exhibit 4 shows the location of the recommended sound wall. <br />To ensure the effectiveness of the sound wall noise <br />monitoring is also recommended once the operation of the <br />proposed project begins. <br /> <br />Interior Noise Impacts <br /> <br />Based on noise levels shown N-5 the proposed project would <br />be able to meet the City's interior noise standard. A <br />typical residential structure provides 12dB noise <br />attenuation with windows open, from exterior to interior <br />noise levels. With windows closed, a 24 dB noise reduction <br />would typically occur. With this level of noise <br />attenuation, the City's interior noise standard would be <br />achieved with either a windows open or windows closed <br />condition. No mitigation would be necessary. <br /> <br />Table N-5 <br />Automated Car Wash Noise <br />(dBA) <br />~aximuml L(2) L(8) <br /> <br />L(25) L(50) <br /> <br />MARK VII GARWASHEQJ!lIPSEN':E' <br />Hourly Noise Level at <br />Property Line of <br />Condominiums <br />City Noise Standards <br />Exceeds Exterior Noise <br />Standard? <br />MAR1('........VII..........GAR.........WASH<SQUI <br />Hourly Noise Level at <br />Windows/Balconies of <br />Condominiums <br />City Noise Standards <br />Exceeds Exterior Noise <br />Standard? <br />RYKQ... GAR..WASHEQUx..PMSNT <br />Hourly Noise Level at <br />Property Line of <br />Condominiums <br />City Noise Standards <br />Exceeds Exterior Noise <br />Standard? <br />R:y-1{'O CAR.......WASHEQUIPMEN'I.' <br />Hourly Noise Level at <br />Windows/Balconies of <br /> <br />61 <br /> <br />61 <br /> <br />61 <br /> <br />60 <br /> <br />75 <br />No <br /> <br />70 <br />No <br /> <br />65 <br />No <br /> <br />60 <br />No <br /> <br /> <br />60 <br /> <br />60 <br /> <br />59 <br /> <br />58 <br /> <br />75 <br />No <br /> <br />70 <br />No <br /> <br />65 <br />No <br /> <br />60 <br />No <br /> <br />65 <br /> <br />64 <br /> <br />63 <br /> <br />60 <br /> <br />75 <br />No <br /> <br />70 <br />No <br /> <br />65 <br />No <br /> <br />60 <br />Yes <br /> <br /> <br />27 <br /> <br />31A8~9 <br /> <br />57 <br /> <br />55 <br />Yes <br /> <br />55 <br /> <br />55 <br />Yes <br /> <br />51 <br /> <br />55 <br />No <br /> <br />47 <br />