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CITY OF SANTA ANA E. Consultant shall prepare a memorandum detailing the proposed signal timing optimization and implementation plans for Agencies and City of Santa Ana to review and approve prior to generating timing charts for implementation and fine-tuning. Sub-Task 4.5: Signal Timing Implementation and Fine-Tuning Upon approval of the optimized signal timings by City Santa Ana, Caltrans and Agencies, consultant, at a minimum, shall prepare for new timing implementation and fine-tuning as follows. A. Consultant shall prepare timing charts for each the four (4) Caltrans intersections on the corridor showing the implementation-ready timing parameters based on Agency preference and guidance. These parameters may include, but is not limited to, approved basic timing, sequence, coordination pattern, action plan, day plan, schedule plan, and time of day function. B. Consultant shall implement or assist Caltrans staff in the implementation of new signal timings either through the central traffic signal system (if available) or direct implementation at the intersection controller units. Consultant shall use existing traffic signal interconnection systems, where they exist, and, as a result of the inter- jurisdictional nature of the project, shall implement time-based signal coordination techniques across signals controlled by different Agencies. Updated timing sheets containing the most current controller timing shall immediately be placed within the controller assembly and time/date stamped and signed by the City designate. C. As the project will be using time-based signal coordination, the consultant shall evaluate the current time-referencing of all traffic signal controllers and recommend a corridor-wide strategy to ensure that all traffic signal controllers are on synchronized time clocks linked to a master time source. Consultant shall verify that all Central Master or Local Field Master, and/or Local Controller unit clocks are: 1. Operating properly and are synchronized; 2. Referencing Coordinated Universal Time (UTC) and the reference for all cycle length calculation shall be 12:00 AM (midnight). D. Consultant shall fine-tune, or assist Caltrans staff in the fine-tuning of, the new settings and timings. Consultant shall fine-tune timings in the field and record all changes. Fine- tuning shall be conducted during times and days that are representative of the times and days for which coordination plans were developed. E. Consultant shall collect detailed notes of any and all implementation and fine-tuning activities by Agencies to include in the Project Report. F. Consultant shall utilize Tru-Traffic software on a laptop with appropriate GPS device and use the floating car method utilized in the project 'Before' Study to fine-tune the corridor operation and verify integrity of system intersection clocks. Synchronized Video shall be 21