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`oeG oroszengineeringgroup November 18, 2019 Honorable Mayor Miguel Pulido and City Council Members Santa Ana City Council 22 Civic Center Plaza Santa Ana, CA 92701 Subject: Magnolia at the Park — The Addington —2525 N. Main Street, FEIR Honorable Mayor Miguel Pulido and Members of the City Council: OEG Ref 19-702 Orosz Engineering Group, Inc. (OEG) has prepared the following comment letterforthe subject project. We have reviewed the Traffic and Circulation analysis prepared for this project at the request of the North Santa Ana Preservation Alliance (NSAPA). We have prepared and reviewed over 200 Traffic Impact Analysis and Environmental Impact Report sections on Transportation and Circulation over the past 38 years (32+ years in the Southern and Central Coast areas of California). We have reviewed the Transportation and Circulation Section of the FOR and DEIR and the associated technical appendices for the subject project. Based on our review, the sections of the FOR and DEIR fallow and address the proper standards of care associated with the preparation of traffic studies. SUMMARY The FEIR that is being considered has some significant omissions. In the Transportation and Circulation Section, there are potential significant impacts that has not identified, discussed or mitigated. The back- up of southbound traffic on N. Main Street between Edgewood Road and Walkie Way has the potential to back-up traffic and block intersections. The project is proposing to reduce the distance between these intersections, while adding traffic to the back-up of traffic. In the technical studies for the project, information is calculated that shows this back-up increasing into the future but was not evaluated or mitigated in the report text. This is important especially considering the overly wide intersection being created with the project at Walkie Way. TECHNICAL EVALUATION The vehicle queuing analysis summarized in the FEIR Tables T-4, T-8 and T-11 omit a key piece of data. The southbound through traffic movement for the Main Street/Edgewood Road/1-5 ramps do not have any queuing information. This is an important movement since the project is proposing to reduce the distance between the Main Street intersections at Edgewood Road and at Walkie Way/Project Site Entrance by 90 feet. This is an omission in the FEIR. The existing spacing between these two intersections in the southbound direction is approximately 390 feet. With the project, this distance is proposed to be reduced by 90 feet, resulting in about 300 feet of available queue (backup of traffic) before the queue would impact the operation of the intersection. Below is a summary of the applicant calculated queues for the southbound through movement from the technical appendices. The bold numbers indicate that the expected back-up of traffic or queue would impact the Walkie Way/Project Site Entry intersection. PO Box 2934. Prescott. AZ. 86302 . 805-680-1586 . steveoeg57@gmail.com