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CCP 01-21-2003
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CCP 01-21-2003
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<br />I <br />I. <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />.. <br />I <br />I <br />I <br />I <br />I <br />I <br />-. <br />I <br />I <br /> <br />TABLE 21 <br />TYPICAL CONSTRUCTION EQUIPMENT NOISE LEVELS AT 50 FEET <br /> <br />Equipment Type Peak Noise Level Range (dBA) Average <br />(dBA) <br />Scraper 80-93 88 <br />Dozer 72-84 80 <br />Compactor 73-75 74 <br />Truck 82-94 91 <br /> <br />Source: From the most recent information published by the U.S. Environmental Protection Agency, <br />Washington, D.C., Noise from Construction Equipment and Operations, Building <br />Equipment and Home Appliances, December 31,1971. <br /> <br />The actual noise levels that may be experienced near a construction zone depend on: <br /> <br />. The distance between the construction equipment and the receiver. <br />. The type of equipment in use. <br />. The percentage of the time the equipment attains the peak level. <br />. Noise control features incorporated into the equipment. <br /> <br />In accordance with city ordinance 630.01, construction activities (i.e., construction noise) <br />will be limited to daytime hours, from 7:00 a.m. to 9:00 p.m. during the week, <br />and 8:00 a.m. to 9:00 p.m. on the weekend. Contractors will be required to ensure that <br />equipment has been properly maintained and fitted with mufflers and other noise controls, <br />as specified by the manufacturer. <br /> <br />Traffic Noise <br /> <br />Traffic is a common source of noise in a suburban setting and is rcgulatcd in <br />Minnesota by the Minnesota Pollution Control Agency (MPCA) under Minnesota <br />Statute 1 16.07 Subdivisions 2 and 4. The proposed project is located in a developing <br />suburban setting with commercial, light industrial and residential land uses surrounding the <br />project site. High traffic roads such as Lexington Avenue, Hamline Avenue and 1-694 arc <br />located adjacent to or close to the project site to the east, west and south, respectively. <br /> <br />A detailed noise analysis was completed to assess existing traffic noise levels in the project <br />area and to determine what effect thc proposed project will have on fllture noise levels. <br />The proposed project will increase traffic volumcs in some parts of the study area. <br />Increases in traffic can rcsult in increascd noise levels, which can be perccived as an <br />annoyance by adjacent residents. The noise analysis consisted of monitoring existing noise <br />levels at adjacent residential receptor sites and predicting future noise levels using <br />computer modeling. <br /> <br />Guidant Campus 1'vfaster Plan <br />Final AllAR and Mitigation Plan <br /> <br />January 2003 <br /> <br />- 48 - <br />
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