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4.8 Noise <br />Noise Levels in dBA CNEL at 5o feet <br />Increase <br />with Project <br />Year2035 <br />Year2035 <br />over <br />Exceeds <br />Existing <br />Without Project <br />With Project <br />Existing <br />Project <br />Significance <br />Signiticance <br />Roadway Segment <br />Conditions <br />TraRC Volumes <br />TFaitic Volumes <br />Conditions <br />Contribution <br />Threshold^ <br />Threshold? <br />Grand Ave -Santa <br />71.4 <br />73.2 <br />73.6 <br />2.2 <br />0.4 <br />3.0 <br />No <br />Ana Blvd to 17th St <br />Santa Ana Blvd- <br />62.8 <br />63.9 <br />63.9 <br />1.1 <br />0.0 <br />5.0 <br />No <br />East of Grand Ave <br />Grand Ave -1st St <br />71.5 <br />72.5 <br />72.7 <br />1.2 <br />0.2 <br />3.0 <br />No <br />to 4th St <br />4th St -Grand Ave <br />64.5 <br />65.5 <br />66.0 <br />1.5 <br />0.5 <br />5.0 <br />No <br />to Santiago St <br />St -East of <br />65.0 <br />66.1 <br />66.2 <br />1.2 <br />0.1 <br />3.0 <br />No <br />Grand Ave <br />Grand <br />Grand Ave -South <br />724 <br />73.7 <br />73.9 <br />1.5 <br />0.2 <br />3.0 <br />No <br />of 1 at St <br />1 st St -Standard <br />73.8 <br />75.1 <br />75.2 <br />1.4 <br />0.1 <br />3.0 <br />No <br />Ave to Grand Ave <br />1stSt-East of <br />73.5 <br />74.6 <br />74.7 <br />1.2 <br />0.1 <br />3.0 <br />No <br />Grand Ave <br />Penn Way -South <br />63.8 <br />66.7 <br />67.0 <br />3.2 <br />0.3 <br />5.0 <br />No <br />of 1-5 SB Ramps <br />Penn Way -North of <br />66.5 <br />67.6 <br />67.8 <br />1.3 <br />0.2 <br />3.0 <br />No <br />1-5 SB Ramps <br />Santa Ana Blvd - <br />West of 1-5 SB <br />69.7 <br />70.7 <br />71.3 <br />1.6 <br />0.6 <br />3.0 <br />No <br />Ramps <br />Santa Ana Blvd - <br />East of 1-5 SB <br />67.7 <br />68.8 <br />69.5 <br />1.8 <br />0.7 <br />3.0 <br />No <br />Ramps <br />17th St -West of 1-5 <br />74.4 <br />75:4 <br />75.4 <br />1.0 <br />0.0 <br />3.0 <br />No <br />NB Ramps <br />17th St -East of 1-5 <br />73.4 <br />74.4 <br />74.4 <br />1.0 <br />0.0 <br />3.0 <br />No <br />INS Ramps <br />Grand Ave -South <br />73.0 <br />74.3 <br />74.6 <br />1.6 <br />0.3 <br />3.0 <br />No <br />of 1-5 NB Ramps <br />Grand Ave -North <br />72.7 <br />74.1 <br />74.2 <br />1.5 <br />0.1 <br />3.0 <br />No <br />of 1-5 NB Ramps <br />SOURCE: PBS&J, 2010 (calculation data and results are provided in Appendix F(, <br />a. Significance Thresholds are set as follows: <br />5.0 dBA CNEL if the noise increase Is below the City of Santa Ana standard of 65 dBA CNEL <br />3.0 dBA CNEL if the noise increase meets or exceeds the City of Santa Ana standard of 65 dBA CNEL <br />City of Santa Ana Transit Zoning Code (SD 84A and SD 84B) EIR 4.8-35 <br />