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Mr. Bill Apple, Associate Planner City of Santa Ana, Planning Division March 11, 2008 Page 12 • Road segments analysis will be determined based on the methodology presented in the Orange County MPAH and the City of Santa Ana Circulation Element. V/C ratios are not used in segments analysis. • The City of Santa Ana adopted LOS "D" as the maximum threshold of significance at all intersections and mid -block locations — See above. • The mitigation measures section should include potential impact on adjacent properties; Conceptual dimensional plans for intersections and segments within the study area must be provided. This is essential to validate the feasibility of implementing improvements. Right of way takes including set -back requirements and property takes must be shown, if applicable. • Determination whether streets within site will be private or public and designed to City of Santa Ana Standards. • The final number of study intersections and segments must be supported by screening analysis. The project consultants (this may have already been implemented but it is not entirely clear in the EIR) • Level of Service definitions are presented below: LEVEL OF SERVICE DEFINITION Type of Arterial LOS A LOS B LOS C LOS D LOS E 8 lanes divided 45,000 52,500 60,000 67,500 75,000 6 lanes divided 33,900 39,400 45,000 50,600 56,300 4 lanes divided 22,500 26,300 30,000 33,800 37,500 4 lanes undivided 15,000 17,500 20,000 22,500 25,000 2 lanes undivided 7,500 8,800 10,000 11,300 12,500 Signalized (HCM) (ICU) Unsignalized Level of Service Description Delay Range Intersection (HCM) (Sec. per Capacity Reserve Capacity Vehicle Utilization (Vehicle/hour) A Excellent operation. All approaches to the 5 0-.60 400+ intersection appear quite open, turning movements are easily made, and nearly all drivers find freedom of operation. B Very good operation. Many drivers begin to feel 5.0-15.0 .61-.70 300-399 somewhat restricted within platoons of vehicles. This represents stable flow. An approach to an inter -section may occasionally be fully utilized and traffic queues start to form. C Good operation. Occasionally drivers may have to 15.1-25.0 .71-.80 200-299 wait more than 60 seconds, and back-ups may develop behind turning vehicles. Most drivers feel somewhat restricted.