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