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III. ENVIRONMENTAL SETTING,IMPACTS AND MITIGATION MEASURES D. NOISE the City's noise/land use compatibility acceptable with respect to yuidelines. Violations of the g City's nighttime hourly Leq standard could not be avoided even with construction of a 10-foot rather than 6-foot wall at the western boundary of the site; this would be a significant and unavoidable impact of the project. Impact D.3: Project-generated vehicle traffic would increase noise levels along roadways used as haul routes. (Less than Significant) Of the 544 net new daily vehicle trips generated by the project, 152 of the trips would occur during the a.m. peak hour.These trips would be distributed over the local roadway network and could affect roadside noise levels at sensitive receptor locations. The majority of the a.m. peak- hour trips generated by the project(110 trips) include the use of medium or heavy trucks (see Table III.0-5 in the Traffic Circulation and Safety section). As described earlier in this section, in areas where the noise environment is dominated by traffic, the Leq during the peak-hour is generally equivalent to the DNL at that location. Traffic volumes in the project area are at their peak during the p.m. peak hour(4:00 to 6:00 p.m.). When evaluating the noise impact of a project,the increase in traffic-related noise would typically be judged by the increase in p.m.peak-hour traffic volumes on arterial streets versus existing p.m. peak-hour traffic volumes. Generally,transportational noise levels increase by 3 to 5 dBA with a doubling of traffic volume. With respect to the project,traffic would be the greatest during the a.m. peak hour. Additional project-related truck and vehicle activity could occur on local roadways as early as 4:00 a.m. on Mondays through Saturdays and as early as 8:00 a.m. on Sundays. In order to characterize the project's potential to affect roadside noise levels,an analysis of the change in a.m. peak-hour noise levels was evaluated rather than the p.m. peak hour. This method of analyzing roadway noise levels is conservative and represents worst-case conditions. Sensitive receptors along project roadways include single-family residences located along Navy Drive west of Pershing Avenue and Fresno Avenue north of Navy Drive, and the Motel 6 located along Navy Drive north of Charter Way. The Motel 6 is located in close proximity to I-5 and would be affected to a lesser extent by project traffic. Other roadway segments evaluated in Section III.C,Traffic Circulation and Safety were eliminated from this noise impact analysis, since there are no sensitive receptors located along them. Table IIID-7 shows the existing a.m. peak-hour volumes on the modeled roadway segments and the projected increase in traffic volumes with the project and under cumulative conditions with and without the project. As shown in Table IIID-7,traffic volumes would not double along any of these segments with project implementation and therefore significant increases in roadway noise levels are not anticipated. In order to demonstrate potential increases in roadside noise levels and to reflect increases in noise related to increased truck percentages related to the project, noise level projections were Stockton Scavenger Transfer Station Expansion III.D.18 ESA/990190