SU0004098 - Laserfiche WebLink

Home Browse Search

San Joaquin County Community Environmental Setting,Impacts,and Mitigation Measures Development Department Transportation and Traffic -" 2005). Calculated with this factor, Table 3.L-6 shows that 1,254 truck loads would be produced on a peak production day resulting in 2,508 two-way truck trips per day. Table 3.L-6. Vernalis Area Aggregate Production Sites Year 2007 Baseline Peak Daily Truck Trip Generation Average Yearly Average Daily Truck Peak Daily Peak Daily Peak Daily Two- Production(tons) Loads(25 tons/truck) Adjustment Factor Truck Loads Way Truck Trips 5,600,000 896 1.4 1,254 2,508 Source: Omni-Means 2005. Truck loading frequency on an hourly basis was estimated by reviewing current hourly truck count information collected in May 2004 on Bird Road south of SR 132 and on recent information provided by individual quarry operators. Truck loading frequency information provided by individual quarry operators - represented their best estimate of what their individual loading frequency would be by hour of a typical day(Omni-Means 2005). The estimated year 2007 daily truck loading frequencies are shown in Table 3.L-7. The AM and PM peak hours - (bolded in table)would have 250 and 60 two-way truck trips respectively that would be entering and exiting SR 132. Table 3.L-7. Vernalis Area Aggregate Production Sites Year 2007 Baseline Hourly Truck Loading Frequencies and Estimated Hourly Truck Generation Total Peak Daily Two-Way Truck Trips: 2,508 %of Total %of Total AM Period Hourly Truck Trips Daily Trips PM Period Hourly Truck Trips Daily Trips 12:00-1:00 7 0.3% 12:00-1:00 194 7.7% 1:00-2:00 6 0.2% 1:00-2:00 203 8.1% 2:00-3:00 6 0.2% 2:00-3:00 162 6.5% _ 3:00-4:00 20 0.8% 3:00-4:00 108 4.3% 4:00-5:00 61 2.4% 4:00-5:00 60 23% 5:00-6:00 153 6.1% 5:00-6:00 26 1.0% 6:00-7:00 250 10.0% 6:00-7:00 23 0.9% 7:00-8:00 252 10.00/0 7:00-8:00 23 0.9% 8:00-900 242 9.7% 8:00-900 20 0.8% 9:00-10:00 229 9.1% 9:00-10:00 11 0.4% 10:00-11:00 236 9.4% 10:00-11:00 12 0.5% 11:00-12:00 195 7.8% 11:00-12:00 10 0.4% Source: Omni-Means 2005. Table 3.L-8 shows the projected year 2007 baseline study area truck trip distribution percentages. As shown in Table 3.L-8,approximately 45%of all aggregate trucks will initially be bound to/from the west on SR 132 from Bird Road and approximately 55%to the east. - DeSilva Gates Quarry Project Draft Environmental Impact Report 3.L-8 Jas OW5,os