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11738-02 Letter.docx <br />Ms. Selena Kelaher <br />City of Santa Ana <br />June 19, 2018 <br />Page 2 of 8 <br />EXSITING (2018) CONDITIONS <br />TRAFFIC FORECASTS <br />Existing (2018) weekday AM (7-9 AM), weekday PM (4-6 PM), and Sunday AM (8-10 AM) peak hour <br />turning movement counts (provided in Attachment A) were collected for 2 existing study area <br />intersections (see Exhibit 2). Existing (2018) weekday and Sunday peak hour traffic volumes are shown <br />on Exhibit 3. <br />INTERSECTION OPERATIONS ANALYSIS <br />Per the City’s guidelines, intersection operations analysis has been reported using the Intersection <br />Capacity Utilization (ICU) methodology for signalized intersections and using the Highway Capacity <br />Manual (HCM 6th Edition) methodology for unsignalized intersections. ICU is reported as a volume-to- <br />capacity ratio and HCM is reported in delay (seconds). A summary of intersection operations analysis <br />results for Existing (2018) traffic conditions, along with intersection approach lanes by movement, is <br />shown in Table 1. As shown in Table 1, the following study area intersection is currently operating at an <br />unacceptable level of service (LOS) under Existing (2018) traffic conditions: <br />•Newhope Street & Edinger Avenue (#1) – LOS E PM peak hour only <br />Existing (2018) conditions intersection analysis worksheets are provided in Attachment B. <br />PROJECT TRAFFIC <br />TRIP GENERATION <br />Trip generation represents the amount of traffic which is both attracted to and produced by a <br />development. Determining traffic generation for a specific project is therefore based upon forecasting <br />the amount of traffic that is expected to be both attracted to and produced by the specific land uses <br />being proposed for a given development. <br />The Institute of Transportation Engineers (ITE)Trip Generation Manual is a nationally recognized source <br />for estimating site specific trip generation. The trip generation rates used for the Project are based upon <br />data collected by ITE in their Trip Generation Manual, 10th Edition, 2017. Project trip generation rates <br />for the proposed land use is shown in Table 2. <br />The following 3 trip generation alternatives were considered for the purposes of this focused traffic <br />assessment: <br />•Alternative 1: 109 new seats in the mezzanine of the existing sanctuary <br />•Alternative 2: Construction of a new 9,928 square foot Community Service Building <br />4-120