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Table 4.13-8 <br /> Screening Analysis of Predicted Traffic Noise Levels Along Affected Roadway Segments <br /> Noise Level(dBA LddCNEL)at 50 Feet from <br /> Centerline of Near Travel Lane a <br /> Road Segments <br /> ExistingExisting+College Increase <br /> Park Traffic b <br /> Byron Road between Mountain House Road and Mountain House Parkway 68.1 68.3` 0.2 <br /> ` Byron Road between Mountain House Parkway and Hansen Road 67.8 71.030 3.2b <br /> Mountain House Parkway between Byron Road and Main Street 63.6 63.7 0.1 <br /> �- Mountain House Parkway between Mascott Boulevard and Grant Line Road 63.9 63.9 0.0 <br /> Mountain House Parkway between Grant Line Road and I-205 63.1 65.8b 2.7 <br /> _ Grant Line Road between Mountain House Parkway and Hansen Road 64.2 64.3 0.1 <br /> Grant Line Road between Mountain House Road and Central Parkway 64.1 66.76 2.6 <br /> Grant Line between Central Parkway and Mountain House Parkway 68.2 69.16 0.9 <br /> ` Von Sosten Road between Mountain House Parkway and Hansen Road 59.2 59.5 0.3 <br /> Traffic noise levels were modeled using the FHWA Traffic Noise Prediction Model based on traffic information(e.g.,average daily traffic, <br /> vehicle speeds,road width)prepared for this project(TJKM Transportation Consultants 2004).The modeling assumes no natural or <br /> .. human-made shielding(e.g.,vegetation,berms,walls,buildings)are present.Refer to modeling input/output information on file at the <br /> SJCCDD for input assumptions and output results. <br /> ° Bold=Greater than 3-dBA increase,exceedance of 65-dBA threshold,and/or addition of additional noise to roadway segment already <br /> above 65-dBA threshold. <br /> Traffic noise impacts on exisfing noise-sensitive uses are determined based on existing traffic conditions with and without <br /> implementation of the proposed project.This is compared with traffic noise impacts on proposed noise-sensitive uses that are <br /> determined based on cumulative traffic conditions with and without implementation of the proposed project. <br /> Source:Data complied by EDAW in 2004 <br /> Based on the modeling data presented in Table 4.13-8,project-generated traffic would result in one or more of the <br /> following(identified in bold in Table 4.13-8) at 50 feet from the centerline of the nearest travel lane from the <br /> roadway segments analyzed: <br /> ► a noticeable increase in noise levels(i.e., 3 dBA or greater); <br /> ► exceedance of the 65 dBA threshold; and/or <br /> ► addition of additional noise to roadway segments already above the 65 dBA threshold. <br /> The five roadway segments along which one or more of the above would occur under the project are listed below: <br /> ► Byron Road between Mountain House Road and Mountain House Parkway <br /> ► Byron Road between Mountain House Parkway and Hansen Road <br /> ► Mountain House Parkway between Grant Line Road and I-205 <br /> ► Grant Line Road between Mountain House Road and Central Parkway <br /> Grant Line Road between Central Parkway and Mountain House Parkway <br /> Existing sensitive receptors(residential)are located along the roadway segments listed above.Therefore,potential <br /> project traffic noise impacts to existing sensitive noise receptors along these roadway segments are subjected to <br /> more detailed analysis below. <br /> College Park at Mountain House Specific Plan III Draft EIR EDAW <br /> San Joaquin County 4.13-21 Noise <br />