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All of these intersections are currently unsignalized. Tully Road and Mackville <br /> Road are controlled by STOP signs at their intersections with Jahant Road. Collier Road <br /> and Mackville Road are controlled by STOP signs at their intersections with State Route <br /> 88. <br /> In addition to the intersections selected for detailed analysis, other intersections <br /> in the project area may be impacted by the proposed project. These intersections of <br /> concern are shown on Figures 3.4-2 and 3.4-3 and are listed below. <br /> - State Route 99 and Jahant Road <br /> - State Route 99 and Peltier Road <br /> - Mackville Road and Liberty Road <br /> - Mackville Road and Collier Road <br /> - State Route 88 and Liberty Road <br /> - State Route 88 and State Route 12 (east of Clements) <br /> - State Route 88 and State Route 12 (east of Victor) <br /> Assuming a truck trip distribution pattern as shown in Figure 3.4-1, it can be <br /> seen that the further an intersection is from the project site, the less likely the <br /> intersection would be impacted by quarry related truck traffic. For example, of the <br /> estimated 42 percent (i.e., less than 2 one-way truck trips during the peak hours) of <br /> project related truck trips using Jahant Road to the east of the processing facility site, <br /> an estimated 18 percent (i.e., less than 1 one-way truck trip during the peak hours) <br /> would be distributed to State Route 88 southwest of the Mackville Road intersection <br /> with State Route 88. In addition, traffic volumes along State Routes 12, 88, and 99 are <br /> much higher than nearby local roads resulting in the project related traffic representing <br /> a smaller component of the total traffic volume. Therefore, although the 7 intersections <br /> of concern (listed above) would be used by quarry traffic, potential impacts would be <br /> less than impact to local intersections. If the intersections identified for analysis do not <br /> show significant project impact, it should follow that project traffic would not affect the <br /> other intersections of concern listed above. <br /> To determine the existing traffic conditions at the intersections selected for <br /> detailed analysis, a.m. and p.m. peak hour turning movement counts were conducted in <br /> April, 1990. The results of these intersection traffic counts, i.e., existing traffic <br /> conditions, are presented in Figures 3.4-2 and 3.4-3. <br /> 61 <br />