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<br />LINSCOTT, LAW & GREENSPAN, engineers LLG Ref. 2-25-4923-1 <br /> Cristo Rey Orange County High School, Santa Ana <br />N:\4900\2254923 - Cristo Rey Orange County High School, Santa Ana\Report <br />1 <br />UPDATED TRAFFIC CIRCULATION ANALYSIS <br />CRISTO REY ORANGE COUNTY HIGH SCHOOL <br />Santa Ana, California <br />September 16, 2025 <br /> <br /> <br />1.0 INTRODUCTION <br />This updated traffic circulation analysis addresses the potential circulation needs associated with the <br />proposed Cristo Rey Orange County High School Project (hereinafter referred to as Project) located <br />in the City of Santa Ana, California. The Project site is situated on the southeast quadrant of Harbor <br />Boulevard and Lake Center Drive, within an existing business park, at 3601 – 3631 South Harbor <br />Boulevard. The proposed Project will consist of re-occupying Building 3611 (45,148 SF) and the <br />second floor of Building 3601 (18,032 SF) for a total of 63,180 SF as a private high school with up <br />to a maximum of 500 students at buildout. This high school is being relocated from their existing site <br />within the Immaculate Heart of Mary Catholic church site at 2204 McFadden Avenue in the City of <br />Santa Ana with a current enrollment of 140 students. <br />This report documents the findings and recommendations of a traffic circulation analysis conducted <br />by Linscott, Law & Greenspan, Engineers (LLG) to determine the potential circulation effects and <br />Project-related improvements associated with the proposed Project. The traffic analysis evaluates the <br />existing operating conditions at eight (8) key study intersections within the project vicinity, estimates <br />the trip generation potential of the proposed Project, and forecasts future operating conditions <br />without and with the proposed Project. Where necessary, intersection improvement measures are <br />identified. This traffic report satisfies the traffic analysis requirements of the City of Santa Ana . The <br />Scope of Work for this traffic study, which is included in Appendix A, was developed in conjunction <br />with City of Santa Ana staff. <br />The project site has been visited and an inventory of adjacent area roadways and intersections was <br />performed. Existing peak hour traffic information has been collected at eight (8) key study <br />intersections for use in the preparation of intersection level of service calculations. Information <br />concerning cumulative projects (planned and/or approved) in the vicinity of the proposed Project has <br />been researched at the Cities of Santa Ana, Fountain Valley, and Costa Mesa. Based on our research, <br />there are three (3) cumulative projects in the City of Santa Ana, four (4) cumulative projects in the <br />City of Fountain Valley, and three (3) cumulative projects in the City of Costa Mesa within the <br />vicinity of the subject site that have either been built, but not yet fully occupied, or are being processed <br />for approval. These ten (10) planned and/or approved cumulative projects were considered in the <br />cumulative traffic analysis for this project. <br />This traffic report analyzes existing and future weekday AM peak hour and PM peak hour traffic <br />conditions for a near-term (Year 2026) traffic setting upon completion of the proposed Project. Peak <br />hour traffic forecasts for the near-term (Year 2026) have been projected by increasing existing traffic <br />