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III. ENVIRONMENTAL SETTING,IMPACTS AND MITIGATION MEASURES C. TRAFFIC CIRCULATION AND SAFETY Impact C.2: Traffic generated by the proposed project would contribute to cumulative traffic volumes on roadways serving the project site. (Significant) The City of Stockton computer travel demand model was used to forecast traffic volumes on project area roadways, and at intersections, under buildout of the city's General Plan (Tomura, 1999b). These volumes reflect development patterns and changes to the roadway network expected to occur in the future. Network changes of note include the planned extension of the Crosstown Freeway from its current terminus (at Fresno Avenue)westward to an intersection with Charter Way (Business Route 4). Net new project-generated vehicle trips were then added to these future baseline volumes to judge the potential impact the proposed project would have on cumulative traffic conditions. As shown in Table III.0-7, the study intersections would operate at an acceptable LOS D or better,except the unsignalized Charter Way/Stockton Street intersection where delays within LOS F would increase during the a.m. and p.m. peak hours. The contribution of a.m. peak-hour project-generated traffic to cumulative delays at the Charter/Stockton intersection, estimated to be no more than six outbound truck trips under maximum waste intake levels (see Table III.0-6), would be considerable(i.e., a significant impact). Level of service calculations are on-file and available for review at the City of Stockton Department of Community Development(Planning Division), 345 North El Dorado Street. Mitigation Measures Proposed as Part of the Project None. Mitigation Measure Identified in This Report Mitigation Measure C.2: The City of Stockton would implement Mitigation Measure C.la(i.e., install traffic signals at the intersection of Charter Way and Stockton Street). The project applicant would pay their fair share contribution to the cost of the signal installation. As discussed under Mitigation Measure C.Ia,justification for the installation of traffic signals at an intersection is based on signal warrants. Projected cumulative traffic volumes at the Charter Way/Stockton Street intersection were found to satisfy Warrant No. 11 under both a.m. and p.m. peak-hour conditions. Implementation of this mitigation measure would fully mitigate the cumulative impact during the a.m. peak hour; the level of service would improve to LOS C. Significance After Mitigation: Less than Significant. Impact C.3: The proposed project would increase traffic volumes on roadways in the vicinity of the project site,increasing the potential for vehicle conflicts. (Potentially Significant) Stork-ton Scavenger Transfer Station Erpansion III.C.I I ESA/990190