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Page 72 According to the San Joaquin County and the City of Stockton's level of service criteria, cumulative traffic would not have any significant impacts on any of the study intersections except at the Austin Rd/Mariposa Rd intersection. The results of the cumulative level of service analysis are also presented in Table D-6. The LOS calculations for the cumulative condition arc provided in Appendix B. Mitigation D.2. The project's fair share contribution to the traffic signal at Austin Rd/Mariposa Rd intersection, as described in Mitigation D-1, above, would also mitigate the project's -contribution to cumulative traffic impacts. ' Impact D.3. The project could increase pavement wear on nearby streets. The roadways surrounding the project site currently would not need to be rcpaved in the very near future but are deteriorating. The County has a backlog of pavement repair and upgrade projects, and the improvements may take longer than a year to be carried out. Based on the project trip generation, the proposed project would not cause substantial degradation of pavement quality. However, if the roadways L were left in this condition, the project would add to the incremental worsening condition of the pavement. The project impact,however,is not considered to be significant. (Rajappan and Meyer 1999). r Mitigation D.3; None Required. Impact DA. The project could add traffic that could affect traffic safety hazards. . As presented in the accident summary (see Table D-1), the accident rates on the study roadways are considerably lower than the statewide average for reported accidents on suburban (defined by Caltrans as "urbanized areas outside of city limits')two- and three-lane conversion roadways. The number of project trips added to these surrounding roadways, however, suggests that the project would not cause travel on the roadways to be less safe than existing conditions. r Miti ation DA None re uired. Conclusions Under all conditions, the operation of the four study intersections would not be impacted during the AM or PM peak hour, with the exception of the Austin Road/Mariposa Road. intersection which will experience LOS F during the'AM peak hour,and under cumulative conditions. The Austin Landfill does-is not solely responsible for this problem, however, it does add some traffic to further worsen the operating conditions. For this reason, it will be responsible for.some part of the cost. The Austin Road Landfill project would be responsible for a fair-share contribution of not more than 5% of the cost of signal installation. I r k �t i GItASSETTI EMMONMENTAL CONSULTING