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The 2000 Korve traffic study calculated the impacts of the traffic generated by the proposed ADT auto auction, plus othef recently approved or planned industrial buildings in the business park, on nearby intersections and freeway segments("existing conditions plus project"). The study concluded that the traffic generated by the project would not impact any intersections. All nearby intersections would continue to operate at Level of Service (LOS) C or better, and all freeway segments would continue to experience LOS D or better. The analysis then examined impacts on intersections and roadways in the area assuming year 2010 cumulative development conditions,with and without the project. Cumulative 2010 conditions are based on the San Joaquin Council of Governments transportation model and land use projections, which include substantial growth in the Tracy and Mountain House communities. Without the project, 2010 cumulative growth would cause LOS F conditions at the I-205/Mountain House Parkway and I-580/Mountain House freeway ramps. Addition of a traffic light at each ramp, plus a right turn lane at the I-580/Mountain House interchange, would reduce the LOS F conditions to an acceptable LOS D or better. However, traffic congestion on the I-205 freeway segment at Mountain House Parkway would be LOS E or F. Widening the I-205 freeway from six to eight lanes would result in LOS D. During cumulative year 2010 conditions, the project would add traffic to one nearby intersection (Berkeley Road/Mountain House Parkway) that would cause the intersection level of service to degrade to LOS F. Two other nearby intersections (the ramps on Mountain House Parkway at the I-580 and I-205 interchanges) would already be at LOS F without the project. The Korve report recommends that the ADT project applicant be responsible for contributing a fair share contribution to the cost of installing a traffic signal at the Berkeley Road/Mountain House Parkway intersection. Korve estimates that the applicant's fair share of the traffic and subsequent contribution should be approximately 20 percent of the total traffic at the intersection. On-Site Circulation The 1994 Special Purpose Plan includes a conceptual on-site circulation plan for the Tri-State/Cheng parcel (the land north of the Special Purpose Plan boundary). The conceptual circulation pattern includes a long public-maintained loop road serving the northern portion of the business park property, with a series of cross-roads connecting the loop (Figure 8). The 1994 circulation plan assumed that the remaining portion of the Tri-State/Cheng parcel would be subdivided and developed in numerous industrial lots. With the proposed development of the ADT Auto Auction on 218.5 acres,the public loop road would not be required, since all circulation within the project site would be accomplished with private driveways and on private parking lots. To accommodate the auto auction site plan, the conceptual circulation plan would be modified to delete the public loop road system (Figure 8). 93231-130.spp00.wpd-224/00 -13-