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San Joaquin County Community Environmental Setting,Impacts,and Mitigation Measures <br /> Development Department Transportation and Traffic <br /> r <br /> Table 3.L-27. DeSilva Gates Quarry Year 2007 Peak Daily Truck Trip <br /> Generation <br /> Average Daily Peak Daily Peak Daily Peak Daily <br /> Average Yearly Truck Loads Adjustment Truck Two-Way <br /> Production(tons) (25 tons/truck) Factor Loads Truck Trips <br /> Baseline: <br /> 5,600,000 896 1.4 1,254 2,508 <br /> _ Proposed Project: <br /> 500,000 80 1.4 112 224 <br /> Baseline plus Project: <br /> 6,100,000 976 1.4 1,366 2,732 <br /> Source: Omni-Means 2005. <br /> ,. Table 3.L-28 illustrates the estimated distribution to the State Highway System <br /> via the SR 132/Bird Road intersection of all trucks generated by the proposed <br /> project. As shown,approximately 25%of the trucks generated by the proposed <br /> L Project are estimated to have origins/destinations to the northwest via I-580, 50% <br /> are estimated to have origins/destinations to the north via I-5, 10%are estimated <br /> to have origins/destinations to the south via I-5, and 15%are estimated to have <br /> origins/destinations to the east via SR 132. <br /> Table 3.L-28. DeSilva Gates Quarry Truck Trip Distribution From SR 132/13ird <br /> Road Intersection <br /> Initial Distribution Secondary Distribution <br /> Direction (%) (%) <br /> r Westbound on SR 132 to I-580 25% <br /> Northbound on I-580 25% <br /> Eastbound on SR 132 to I-5 75% <br /> Eastbound on SR 132 beyond 1-5 15% <br /> Northbound on I-5 50% <br /> Southbound on I-5 100/0 <br /> Total 100% 100% <br /> Source: Omni-Means 2005. <br /> Year 2007 Plus Project Traffic Volumes <br /> Year 2007 plus project AM and PM peak hour traffic volumes include the <br /> addition of the proposed Project's 2007 aggregate truck traffic to the study area <br /> ` intersections and roadways. As previously noted, in 2007 the proposed Project is <br /> estimated to produce 500,000 tons of aggregate per year. Conservatively,using a <br /> peak production day for analysis,this would generate 224 daily truck trips. <br /> Table 31-18 presents the estimated year 2007 plus project truck loading <br /> frequencies by hour of a typical day. The number of peak daily two-way truck <br /> trips that would be generated by hour was estimated based on a total of 2,732 <br /> i two-way truck trips (2,508 from the 2007 base conditions plus 224 with the <br /> project). The AM and PM peak hours were identified to include 6:00-7:00 a.m. <br /> DeSilva Gates Quarry Project <br /> Draft Environmental Impact Report 31-25 <br /> As 05105.05 <br />