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HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR <br />CITY OF SANTA ANA <br />5. Environmental Analysis <br />NOISE <br />2035 Conditions <br />Table 5.9 -8 shows the project's noise increases over 2035 conditions, without and with implementation of the <br />project. With the project, the overall increase over existing conditions would range from —1.5 to 1.3 dBA <br />CNEL. Traffic noise increases due to the project at 2035 conditions range from —0.8 to 0.7 dBA. The <br />reduction in noise is caused by a reduction in traffic volumes due to changes in land uses and the <br />corresponding trip generation at some areas of the Harbor Corridor Plan, and due to a new roadway that <br />would run northwest to southeast that would alleviate traffic on some of the existing study area roads. The <br />overall noise increase of up to 1.3 dBA would occur on Edinger Avenue from Fairview Street to Harbor <br />Boulevard. At all other segments, the increase would 1.0 dBA or less. The calculated noise increases at study <br />area roadways due to the project would occur over more than 20 years and would be less than 3 dBA, and <br />therefore would not result in a substantial noise increase at receptors along roadways. <br />Page 5.9 -10 PlaceWorkr <br />