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EXISTING PEAK HOUR TRAFFIC CONDITIONS Existing morning and evening peak hour turning movement counts were conducted at the study intersections during the morning (6:00 to 9:00 AM} and afternoon/everung (2:00 to 6:00 PM) peak periods. Extended peak period counts were made as the proposed project is located in close proximity to Segerstrom High School. Existing morning and evening peak hour traffic volumes are shown on Figure 1. Copies of the count data forms are provided in Appendix A to this report. Existing peak hour operations were evaluated and the results are summarized on Table 1. The three study intersections are currently operating at LOS B or better during both peak hours based on the ICU analysis. Based on the HCS analysis, the intersection of Alton/Fairview is operating at LOS D or better during both peak hours based on intersection delay. The intersection of Alton/Grreenville is operating at LOS E doting the morning peak hour and at LOS D during the evening peak hour based on intersection delay. The intersection of Alton/Raitt is operating at LOS F during the morning peak hour and at LOS D during the evening peak hour based on intersection delay. The HCS analysis also points out specific turning movements at each of the study area intersections where queues of vehicles are experiencing LOS E and F delays. Specifically, the HCS analysis indicates: • Alton/Fairview -Southbound left turn movement - LOS F in AM, LOS E in PM • Alton/Greenville -Eastbound shared through/right tom movement - LOS E in AM • AltonlGreenville -Westbound left turn movement - LOS F in AM • Alton/Greenville -Northbound shared left turn/through movement - LOS E in PM • Alton/Grreenville -Southbound shared left turn/through/right turn movement - LOS F in AM • Alton/Raitt -Eastbound left tom movement - LOS F in AM and PM • Alton/Raitt -Southbound left tom movement - LOS F in AM • Alton/Raitt -Southbound tight tom movement - LOS E in AM ICU and HCS worksheets for the Existing Conditions analysis are provided in Appendix B of this report. PROJECT TRAFFIC Trip generation estimates for the proposed Alton Court residential development were developed based on three days of traffic counts made at the Aries Way driveway of the adjacent Charleston residential development. The Charleston development is located immediately to the east of the proposed Alton Court development. The Charleston development consists of 40 single-family attached dwelling units. The Chazleston units each range in size from about 1,800 square feet to 2,200 square feet and include three (3) to five (5) bedrooms. Each unit includes a 2-caz garage. As previously mentioned, the proposed Alton Court residential development consists of 38 single-family detached dwelling units ranging from 1,800 square feet to 2,200 square feet. Each unit will have three (3) bedrooms and a 2-caz garage. Thus, the two developments are comparable and traffic counts made at the Charleston development would directly reflect the tripmaking Traffic Analysis for - 4 - October, 2007 Alton Court Residential Development 75A-135