Item 27 - Appeal Application Nos. 2020-03 and 2020-04 - Central Pointe Mixed-Use Development

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7.0 TRAFFIC IMPACT ANALYSIS METHODOLOGY The relative impact of the proposed Project during the AM peak hour and PM peak hour was evaluated based on analysis of future operating conditions at the twenty-five (25) key study intersections, without, then with, the proposed Project. The previously discussed capacity analysis procedures were utilized to investigate the future volume -to -capacity relationships and service level characteristics at each study intersection. The significance of the potential impacts of the Project at each key intersection was then evaluated using the following traffic impact criteria. 7.1 Impact Criteria and Thresholds 7.1.1 City of Santa Ana Based on the City of Santa Ana, impacts to local and regional transportation systems are considered significant if any of the following would occur: ■ Project traffic would cause an intersection currently operating at an acceptable peak hour Level of Service (LOS) to operate at an unacceptable peak hour LOS. The City of Santa Ana considers LOS D to be the minimum acceptable LOS for all intersections, except for those locations located within the City's defined major development areas, where LOS E is considered acceptable. Based on the above, the following summarizes the LOS required for each key study intersection: ➢ LOS "D" Requirements: 1. Elk Lane at First Street 2. I-5 SB On -Ramp at First Street 7. I-5 SB On-Ramp/Mabury Street at 4th Street 8. I-5 NB Ramps at 41h Street 13. SR-55 SB Ramps at 4th Street 18. Cabrillo Park Drive at 17th Street ➢ LOS "E" Requirements: 3. Cabrillo Park Drive at First Street 4. Golden Circle Drive at First Street 9. Cabrillo Park Drive at 41h Street 10. Golden Circle Drive at 4th Street 11. Park Center Drive at 41h Street 19. Cabrillo Park Drive at Wellington Avenue 21. Mabury Street at Fruit Street 22. Cabrillo Park Drive at Fruit Street 23. Park Center Drive at Fruit Street 25. Cabrillo Park Drive at Park Court Place 12. Tustin Avenue at 41 Street 16. Cabrillo Park Drive at State Fund Access Road 17. Cabrillo Park Drive at Xerox Center Access Road 20. Tustin Avenue at Wellington Avenue 24. Tustin Avenue at Fruit Street ■ The project increases traffic demand by 1% of capacity (ICU increase >_ 0.01) at a signalized study intersection forecast to operate at an acceptable LOS. ■ At unsignalized intersections, an impact is considered to be significant if the project causes an intersection at LOS D or better to degrade to LOS E or F and the traffic signal warrant analysis determines that a signal is justified.