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Cumulative Conditions The San Joaquin County Draft General Plan, indicates that the 1987 population for the Lockeford Planning Area was 9,100. The projected population for this area for the Year 2010 is 14,600, which signifies a 2 percent per year growth rate. To determine the cumulative traffic volumes in the project area, a 2 percent per year growth rate was applied to the existing traffic volumes for the period of 10 years, which would be the anticipated lifespan of the proposed quarry project. The results of the cumulative analysis are presented in Table 3.4-2. It can be seen from Table 3.4-2 that the cumulative traffic would degrade the existing a.m. peak hour levels of service at the intersections of State Route 88 with Collier Road and Mackville Road from LOS A to LOS B. In addition, the existing p.m. peak hour LOS at the intersection of State Route 88 and Mackville Road would degrade to an unacceptable LOS D under this condition. However, this reduction in LOS is a result of increased traffic associated with anticipated growth in the project area and surrounding communities and would occur even without project traffic. The Level of Service D at the intersection of State Route 88 and Mackville Road is mainly due to the delay experienced by people wishing to make left turning movements from Mackville Road onto State Route 88. A signal warrant analysis was performed for this intersection; however, due to low traffic volumes on Mackville Road, it would not meet the traffic signal warrants under the cumulative conditions. Since the rate of production at the processing facility would remain similar to current production rates, the proposed project would continue to generate the same number of trips, and therefore, no increased impacts on local intersections would be anticipated. In addition, the project generates only an average of 40 daily trips with 4 trips during the peak hours and any impact of the project related traffic on local intersections would not be significant. 3.4.3 Mitigation Measures No significant impacts to traffic are expected to result from project operations; however, the following mitigation measures shall be implemented. 68