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A-2.2 Task 2 -Preliminary Design, Estimates and Recommendations Consultant shall create a base plan for each of the intersections utilizing the information from Task 1. In addition, Consultant shall contact utility companies to request utility location information at each of the intersections. Consultant shall then add to the base plans all relevant information collected from utility companies and during Consultant's field reconnaissance. Upon completion of the subtasks detailed below, Consultant shall prepare a review package containing conceptual plans, preliminary construction cost estimates and recommendations for each intersection and submit it to the City for review. Following the completion of the City's review, Consultant shall schedule a meeting to discuss with City their comments and review the recommendations in the field if needed. The City will then select a detection scenario, final wireless equipment locations and final EVP equipment locations, at each of the applicable intersections, for Consultant to use in the Final Design phase. A-2.2.1 Vehicle Detection: Consultant shall evaluate and recommend a sampling detector design for each of the following eleven intersections: Bancroft Ave. at Dutton Ave. and at Sybil Ave.; Floresta Blvd. at Fremont Ave.; Hesperian Blvd. at Bayfair Way, at Springlake Dr., and at Thornally St.; Marina Blvd. at Alvarado St., at San Leandro Blvd., and at Wayne Ave./Teagarden St; and San Leandro Blvd. at West Estudillo Ave. and at Williams St. This shall include field visits to the project intersections to verify existing detector configurations, conduit space, existing pole locations, controller types, controller cabinet space, and any other information that could aid in the determination of the most cost effective design. Utilizing information collected as part of previous work for City (e.g. Traffic-Responsive Feasibility Study, ATSS designs) and from the tasks above, Consultant shall analyze up to three different scenarios for installing sampling detection at each project intersection: Inductive Loop Detectors (IL) at advance locations; Video Detection Cameras (VC); and Remote Traffic Microwave Sensor (RTMS) Detectors. For each of these scenarios, Consultant shall prepare a conceptual plan for each intersection. The conceptual plans shall consist of hand- drawn mark-ups on the base plans. Consultant shall then prepare a preliminary construction cost estimate for each scenario at each intersection. Based on the cost estimates, Consultant shall make recommendations as to which scenario should be used at each intersection. Advanced Signal System Traffic Sample Detectors 2/17/05 Project No. OS-120-28-164 Page 16 of 22