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Draft Environmental Impact Report Page IV.B-5 <br /> Forward Inc. Landfill Expansion <br /> Table iV.B-3 Level of Service Descriptions <br /> Two-Way Segments <br /> Percent Time- Average Travel <br /> Level of Service Spent-Following Speed (mph) <br /> A s35 >55 <br /> B >35-50 >50-55 <br /> C >50-65 >45-50 <br /> D >65-80 >40-45 <br /> E >80 X40 <br /> Source:Highway Capacity Manual, Chapter 20 (Transportation <br /> Research Board,2000) <br /> Period of Analysis <br /> During a weekday, traffic flows are typically highest during morning (AM) and evening(PM) <br /> peak periods. Therefore,the potential for a project to adversely affect the operation of a <br /> transportation system is greatest during these peak periods. The proposed project would <br /> operate during both peak periods, therefore, this study focuses on potential impacts during <br /> both the AM and PM peak periods. <br /> Study Intersections <br /> Four study intersections were selected,with input from County of San Joaquin staff,for analysis <br /> in this traffic study. The following are the four study intersections and the type of control <br /> (signal or stop control). Although there are four driveways that connect the site to Austin Road, <br /> the main driveway carries the great majority of traffic;therefore,it is the only one analyzed. <br /> The numbers in the following list correspond to the locations of the intersections shown in <br /> Figure IV.B-1 and described in the tables. <br /> 1. Austin Road and Mariposa Road (Signalized) <br /> 2. Austin Road and Arch Road (Unsignalized, with All-Way Stop control) <br /> 3. Austin Road and Forward Landfill driveway(main entrance) (Unsignalized, <br /> with Minor Street Stop control) <br /> 4. Austin Road and French Camp Road (Unsignalized, with All-Way Stop control) <br /> The lane configurations of the four study intersections are shown in Figure IV.B-2. <br /> Traffic Volumes <br /> Existing AM and PM peak hour turning movement traffic volumes were collected on Tuesday, <br /> February 10,2009 at each of the four study intersections. The resulting volumes are the baseline <br /> traffic conditions. Baseline AM and PM peak hours turning movement traffic volumes are <br /> shown in Figure IV.B-2. <br /> Intersection operations were evaluated for both the AM and PM peak hours at the study <br /> intersections. The AM peak hour occurs from 7:15 to 8:15 AM and the PM from 4:30 to 5:30 PM. <br /> A description of LOS at these intersections is provided in Table IV.B-4. Detailed intersection <br />