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4.2 TRAFFIC AND CIRCULATION At all-way stop-controlled intersections, increases in traffic volumes as a result of the proposed project which would result in an increase of five percent or more to the average delay of the approach traffic. • A proposed project with insufficient parking and internal circulation capacity, so that project traffic adversely affects off-site areas. • A proposed project without adequate provisions for the circulation of large trucks on roads during periods of construction which generate truck traffic. Unless otherwise noted, all identified impacts are considered significant adverse impacts. The corresponding mitigation measures, unless otherwise noted, would be sufficient to reduce impacts to a less-than-significant level. Although not required byCEQA,some less-than-significant impacts have been discussed because they are issues of local concern. While no mitigation is required by CEQA for less- than-significant impacts, in some cases mitigation measures are proposed that would reduce the level of impact. Operation with Project The proposed project would encompass the Tracy Lakes area located north of Peltier Road between I-5 and SR-99. Davis Road would be extended north of Peltier Road across the Mokelumne River to provide the primary access to the site, and Forest Lake Road would provide another access along the north boundary of the site. The proposed development would occupy approximately 870 acres and consist of 26 detached single-family dwelling units, a private 18-hole golf course, a private equestrian center and a 720-acre nature preserve. The homesites would be interspersed around the golf course and a perennial lake, formed by the excavation of soil from the seasonal Tracy Lakes lakebed. Trip Generation The vehicle trip generation rates for the proposed project are based upon the Institute of Transportation Engineers' (ITE) trip generation research. The number of trips that may be generated by a specific building or land use have been developed by the ITE from research and experience of transportation engineering professionals. Rather than using the average rates, the project trips for this report were generated using published trip generation equations. Using these equations reflects a more accurate trip rate based on the specific land use. Based on rates for the proposed number of dwelling units, the project's daily AM and PM peak-hour vehicle trips have been calculated and are shown in Table 4.2-2. The project, with 26 dwelling units, would generate approximately 248 daily vehicle trips. On weekdays during the AM peak hour the project would generate approximately 19 trips, with 26 percent (five vehicles) entering and 74 percent (14 vehicles) leaving. During the PM peak hour the project would generate approximately 26 vehicle trips, 4.2-8