ALBERT GROVER & ASSOC. 1 -2003 - Laserfiche WebLink

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Mr. Dowling Tsai January 10, 2003 Page 4 8. St. Andrews Place 9. St. Gertrude Place 10. Dyer Road 11. Alton Avenue 12. Columbine Street 5. Tustin Avenue Signal Coordination This project involves collecting turning movement counts at critical intersections; collecting other field data, such as lane geometrics, link speeds and distances; obtaining existing signal timing from the City's signal system; and developing, implementing and fine-tuning coordination timing for a total of five signals on Tustin Avenue. Coordination timings wilt be developed for the intersections of Tustin Avenue at: 1. 17th Street 2. Tustin Center 3. Wellington/Western Medical Center 4. Fruit Street 5. 4st Street SCOPE OF SERVICES The overall project scope of services will be similar to the citywide timing that we recently completed for the City. AGA will be responsible for developing, implementing and fine- tuning the a.m., midday and the p.m. timing plans at all the project intersections. The scope of services applicable to the above five projects is detailed below. The services to be provided by AGA include the following: For all project roadways/intersections for which new timing plans will be developed, AGA will: Collect field data in sufficient quantity to identify existing deficiencies, existing system capabilities and operations. Data collected ~vill include existing traffic signal timing and phasing for each project intersection; intersection geometrics, including number of lanes and usage of each lane; and distance between signalized intersections. · Field measure existing link speeds and saturation flow rates. Collect additional turning movement counts at all project intersections to supplement available counts, and collect other data to adequhfely establish traffic floxv patterns for the preparation of traffic signal timing plans.