Saticoy & Wells Community Plan & Development ... - City Of Ventura

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Saticoy & Wells Community Plan and Code EIRSection 4.11 NoiseTable 4.11-4Comparison of Existing and Future Noise Levelson Key Project Area RoadwaysRoadway SegmentEstimated Noise Level(dBA CNEL)Existing2025 withProjectChange(dB)SignificantImpact?Telegraph Rd b/w Saticoy and Wells 68.9 69.3 0.4 NoTelegraph Rd b/w Saticoy and City limit 67.1 67.8 0.7 NoSaticoy Ave b/w Telegraph and SR 126 65.4 65.4 0.0 NoSaticoy Ave b/w Darling and Telephone 65.4 66.3 0.9 NoTelephone Rd b/w Saticoy and Wells 68.6 69.2 0.6 NoDarling Rd b/w Saticoy and Wells 61.4 61.4 0.0 NoWells Rd south of Telephone 71.1 72.4 1.3 NoWells Rd b/w Telephone and Darling 75.2 76.7 1.5 YesWells Rd b/w Darling and SR 126 71.4 73.0 1.6 YesWells Rd b/w SR 126 and Telegraph 70.5 a -- -- NoWells Rd b/w SR 126 and A St 70.5 72.3 b 1.8 YesWells Rd b/w A St and Telegraph 70.5 69.7 b -0.8 NoSR 126 west of Wells Road 75.1 76.6 1.5 YesA St b/w Saticoy and Wells c -- 59.7 -- NoSource: Federal Highway Administration, Traffic Noise Model version 2.5, Appendix DThose figures reflecting bold typing exceed FICON thresholds as indicated in Table 4.11-3.aThis segment exists only in the Existing scenario, it is broken up into two segments for the future conditions.Therefore, for comparison purposes, this noise level is used for the existing scenario for the two segments thissegment was broken into.bThese segments were separated for the future scenario from the segment identified above.cThis is a new roadway segment for the future scenario. Therefore, no comparison exists.residential developments within the mapped 60 decibel (dBA) CNEL contour and mitigationnecessary to ensure that:• Noise in exterior spaces of new residences and other noise sensitive uses that areused for recreation (such as patios and gardens) does not exceed 65 dBA CNEL; and• Interior noise in habitable rooms of new residences does not exceed 45 dBA CNELwith all windows closed.In addition, Action 7.37 of the 2005 General Plan requires the use rubberized asphalt or othersound reducing material for paving and re-paving of City streets, including roadways withinCaltrans ROW. Studies have indicated that rubberized asphalt reduces overall roadway noiseby 3-5 dB as compared to conventional asphalt. Such a reduction would offset the potential 1.54.11-7City of Ventura
Saticoy & Wells Community Plan and Code EIRSection 4.11 Noiseto 1.8 dBA increase in noise along Wells Road within the Project Area. Thus, compliance withthis action would reduce noise impacts associated with project-generated traffic to a less thansignificant level.Mitigation Measures. Mitigation is not required as compliance with mitigationmeasures already adopted as part of other environmental documents, in combination withconformance with 2005 General Plan actions, would reduce impacts to a less than significantlevel.Significance After Mitigation. Impacts would be less than significant withoutmitigation.Impact N-2Construction of individual projects throughout the ProjectArea could intermittently generate high noise levels under theProject development scenario. This may affect sensitivereceptors near construction sites. However, compliance withNoise Ordinance restrictions on construction timing wouldreduce this impact to a Class III, less than significant level.Construction noise from individual projects through 2025 could have noise impacts on adjacentnoise-sensitive land uses. As required by the City’s Noise Ordinance (Sect. 10.650.150)construction noise is limited to between the hours of 7AM and 8PM. All future Project Areadevelopment would be subject to the City’s Noise Ordinance requirements.As shown in Table 4.11-5, the noise level associated with heavy equipment typically rangesfrom about 78 to 88 dBA at 50 feet from the source. Such noise levels can be disturbing,particularly to noise-sensitive uses such as residences, schools, and hospitals. Thegrading/excavation phase of project construction tends to create the highest construction noiselevels because of the operation of heavy equipment.Noise levels similar to those shown in Table 4.11-5 would be expected to occur with individualProject Area construction projects. Such levels would be temporary in nature, but wouldexceed ambient noise levels present throughout the Project Area. Continued development ofthe Saticoy Village and new development of the Broome Site would have the highest likelihoodof creating noise disturbances because of their proximity to existing noise-sensitive uses(residences). These developments are located adjacent to residential areas located about 50 feetaway from the development boundaries.The Ventura Noise Ordinance exempts construction activities from the standards shown inTable 4.11-2 in the Setting, provided that they are conducted between 7 A.M. and 8 P.M.Assuming compliance with these timing restrictions, noise associated with construction ofindividual projects would not be significant.Mitigation Measures. Mitigation is not required, though it is anticipated that individualconstruction activities would incorporate standard noise reduction techniques.Significance after Mitigation. Impacts would be less than significant without mitigation.4.11-8City of Ventura
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