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Jeremy Larson June 26, 2019 <br />Hampton Companies, LLCPage 4 <br />The daytime hour of analysis was the morning rush hour (7:00 a.m. to 8:00 a.m.). The nighttime <br />hour of analysis was 6:00 a.m. to 7:00 a.m., just prior to the start of the morning rush hour period. <br />The modeled speed on Highway 10 was 60 miles per hour (MPH). The vehicle mix was 98 percent <br />passenger vehicles and 2 percent heavy commercial vehicles on eastbound Highway 10, and 94 <br />percent passenger vehicles and 6 percent heavy commercial vehicles on westbound Highway 10. <br />Noise Analysis Results <br />Existing Noise Levels <br />Existing noise levels were measured at the site during the daytime and nighttime on May 30, 2019. <br />Table 2 summarizes field measurement results. Existing noise levels exceed State daytime and <br />nighttime standards for residential uses (NAC-1). For residential uses, the State limits are 65 dBA <br />(L) and 60 dBA (L) during the daytime, and 55 dBA (L) and 50 dBA (L) during the nighttime. <br />10501050 <br />Table 2.Field Measurement Summary Table <br /> Measurement Measurement End Measured Level, Measured Level, <br />Start Time Time L, dBA L, dBA <br />1050 <br />Daytime 6:00 a.m. 7:00 a.m. 69.23 66.23 <br />Nighttime 7:00 a.m. 8:00 a.m. 66.11 63.08 <br /> <br />Modeled Noise Levels <br />Noise levels were assessed by modeling traffic noise at receptors representing proposed outdoor use <br />areas at the assisted living/extended care facility. One receptor was placed on the north side of the <br />assisted living/extended care facility building representing a proposed outdoor use area, and one <br />receptor was placed on the south side of the building adjacent to the entrance. A figure illustrating <br />the modeled receptor locations is attached. <br />Table 3 tabulates the traffic noise modeling results during the daytime and nighttime. Modeled <br />traffic noise levels at the assisted living/extended care facility on the south side of the building <br />(Receptor 1-1) are below State daytime standards (L and L) for NAC-1, but above State nighttime <br />1050 <br />standards (L and L) for NAC-1. Modeled traffic noise levels at the assisted living/extended care <br />1050 <br />facility on the north side of the building facing Highway 10 (Receptor 1-2) exceed State daytime and <br />nighttime standards (L and L) for NAC-1. <br />1050 <br /> <br />