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6. INTRODUCTION The "DeSilva Gates Quarry Traffic and Circulation Analysis"was prepared by OMNI-MEANS for Jones & Stokes. This study was initiated to study current, 2007 with the SR-132/Bird Road interchange and ` future (Year 2027) traffic and circulation conditions within the study area resulting from the extraction of aggregate resources at the proposed DeSilva Gates quarry in San Joaquin County. A vicinity map showing the project's location is shown on Figure 1. SETTING The proposed DeSilva Gates quarry site is generally located in an aggregate resource area located adjacent to and south of State Route (SR) 132, adjacent to and north of Blewett Road, adjacent to and west of Koster Road, and adjacent to and east of the Delta Mendota Canal. The entrance to the plant is .. proposed to be located on Koster Road approximately midway between the Koster Road intersections with SR-132 to the north and Blewett Road to the south. The proposed site is illustrated on Figure 2. r Five (5) of other quarry operations either currently operate or are proposed in the vicinity of the project. These other area existing/proposed quarry operations along with the proposed DeSilva Gates quarry side are shown on Figure 3 and include Granite Construction, West Coast Aggregates, DSS, RMC Lonestar w. and Teicbert Aggregates. Truck traffic from these existing/proposed quarry sites is included in the future traffic scenarios. CEQA requires that any reasonably foreseeable projects be included in a cumulative analysis. L. PREVIOUS STUDIES s A number of traffic impact and circulation studies have been completed for projects located in the area of this project. The most current and most relevant study at this time is the "Existing and Forecasted Study Area Traffic Volumes and Resulting Traffic Operations" technical memorandum (OMNI-MEANS, May 27, 2005)prepared in support of the SR-132/Bird Road Interchange Project Report. r The Bird Road interchange is proposed to be under construction by 2007. As Caltrans policy is to evaluate a 20-year design based on when the improvements are first open for use, the 20-year design for this project is the year 2027. The "Existing and Forecasted Study Area Traffic Volumes and Resulting Traffic Operations" technical memorandum was prepared to present existing, year 2007 and forecasted year 2027 (20-year design) study area traffic volumes for the SR-132 at Bird Road interchange project. .. Also presented in this study are the study area traffic operations under existing and forecasted year 2007 and year 2027 traffic conditions. The resulting year 2027 traffic operations analysis identified freeway and ramp junction Levels of Service that were below the rural standard of LOS "C". In response to these deficiencies, the report also evaluated a six-lane freeway scenario under year 2027 traffic conditions and two shorter term traffic scenarios (2017 and 2022) to determine when six lanes would be needed on SR- 132. a Based on the results of the shorter term traffic scenario traffic operations evaluations, Caltrans has concurred that mainline SR-132 will require a six-lane freeway segment in the year 2017 in order to r obtain acceptable Levels of Service. Caltrans also recommended that a 10 year design period be used other than 20 years. A 10-year design period exception has been approved by the District 10 Director. L L 2nd Draft DeSilva Gates Quarry Traffic&Circulation Analysis 1 October 2005 Jones&Stokes (R90577S002 125-4000-02) 6