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Chapter 4 Environmental Setting, Impacts, and Mitigation Measures <br />construction noise would need to be in close proximity to a sensitive receptor. As discussed previously, <br />related projects provided in Table 3-3 in Chapter 3.0 (Project Description) are in the vicinity of the <br />Transit Zoning Code area. Construction activity associated with these projects may overlap with <br />construction activity for the proposed project. Thus, the possibility exists that a substantial cumulative <br />increase in construction noise levels could result from construction associated with the projects in the <br />Transit Zoning Code area and related projects. The cumulative impact concerning these projects and the <br />related projects, concurrently emitting high levels of construction noise, would likely be significant and <br />unavoidable. As discussed previously, the City exempts construction noise from the provisions of the <br />Municipal Code as long as construction occurs within certain hours of the day. All of the projects <br />analyzed in the cumulative context that would construct concurrently with the individual projects within <br />the plan area would be required to comply with the same provisions of the Municipal Code described <br />above. Consequently, all projects analyzed in the cumulative context would fall under the Municipal <br />Code exemption, and the cumulative impact of the proposed project would be less than significant <br />Operation of the projects constructed in the Transit Zoning Code area would not include special events <br />or temporary activities which would cause an increase in ambient noise levels. Therefore, there would be <br />no temporary or periodic noise impacts to on- or off -site receptors due to operation of the proposed <br />project, and the cumulative impact of the proposed project would be less than significant. <br />4.8.5 References <br />Harris Miller Miller & Hanson Inc. 2006. Transit Noise and Vibration Impact Assessment, Final Report, May. <br />Hendriks, R. 1998. Technical Noise Supplement: A Technical Supplement to the Traffic Noise Analysis <br />Protocol. California Department of Transportation (Caltrans), Sacramento, California. October. <br />Katz, Okitsu & Associates. December 2006, Traffic Impact Study for the Mixed Use Specfc Plan Area in the <br />City of Santa Ana. <br />KOA Corporation. January 2010. Santa Ana Renaissance Speck Plan Traffic Study. <br />Redden, John P. September 2005. Is train horn noise a problem inyour toum? American Public Works <br />Association website (http://www,apwa.net/Publications/Reporter/ReporterOnHne/ <br />index.asp?DISPLAY=ISSUE&ISSUE_DATE=092005&ARTICLE_NUMBER=1129). Accessed <br />on January 12, 2008. <br />Santa Ana, City of. 1982. City of Santa Ana General Plan Noise Element, 1982. <br />United States Department of Transportation. Federal Highway Administration, 1980a. Highway Noise <br />Fundamentals. <br />. Federal Highway Administration. 1980b. Fundamentals and Abatement of Iighway Traffic <br />Noises. September. <br />Federal Highway Administration. 1980c. Highway Noise Mitigation. <br />Federal Highway Administration. Traffic Noise Prediction Model (FHWA-RD-77-108). <br />Federal Railroad Administration. 1998. High -Speed Ground Transportation Noise and <br />Vibration Impact Assessment, <br />4.8-42 City of Santa Ana Transit Zoning Code (SD 84A and SD 848) EIR <br />