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Consulting Services Agreement between City of San Leandro and Last revised June 2025 Sanbell for Hesperian Bike Lane Gap Closure Exhibit A – Page 5 of 7 Traffic Engineering The Traffic Engineer will provide traffic engineering services for the preparation of design documents for traffic signal modifications at three intersections, signing and striping plans within the project limits, and design of a solar-powered Rectangular Rapid Flashing Beacon (RRFB) at one location. This scope is based on the following assumptions: The Traffic Engineer will prepare signing and striping plans along Hesperian Boulevard between Bayfair and E. 14th Street, and design a solar-powered Rectangular Rapid Flashing Beacon (RRFB) at one designated location. The scope also includes developing full signal modification plans at the intersection of 150th Avenue and Hesperian Boulevard, as well as upgrading pedestrian push buttons and pedestrian signal heads at Fairmont Drive and Hesperian Boulevard. Signal upgrades will be designed at two corners of the E. 14th Street and Hesperian Boulevard intersection. The scope includes attendance at Bicycle and Pedestrian Advisory Committee (BPAC) and City Council meetings (and/or FTC) as required, and participation in eight virtual design coordination meetings with the team. Additionally, optional services may be provided for full signal modifications at the Bayfair/Hesperian and Fairmont/Hesperian intersections. The plan sets will include all equipment necessary for both major and minor traffic signal modifications associated with the implementation of Class IV bikeway facilities. Minor modifications will be limited to pedestrian signal heads and Accessible Pedestrian Signal (APS) push button assemblies. The plans will be formatted to comply with City standards and requirements. Existing signal timing sheets and as-built signal plans for the affected intersections will be provided by the City to support the design process. The Traffic Engineer will request and review existing signal timing sheets and as-built signal plans for the intersections included in the project scope. In addition, the Traffic Engineer will review the traffic operations memorandum provided by the City and evaluate any available pedestrian and bicycle collision reports within the project limits to identify safety concerns that may be mitigated through the proposed improvements. To support the design process, the Traffic Engineer will also conduct field reconnaissance at the signalized intersections to observe existing traffic operations, verify key measurements, and document site conditions through photographs. The Traffic Engineer will review and provide input to the team on the geometric layout of the Class IV bikeway design, including the initial conceptual alternatives. Using the topographic survey provided and supplemented by field observations, the Traffic Engineer will develop base plans that serve as the foundation for the design. These plans will illustrate both existing and proposed traffic signal equipment, including poles, signal cabinets, vehicle and pedestrian signal heads, detection devices, pre-emption systems, and lighting components. The level of detail included will be sufficient to support decision-making and cost estimating, while omitting unnecessary details that may become obsolete as the design evolves. Based on the preferred conceptual alternative, a 60% design submittal package will be prepared and will include traffic signal plans with conductor and equipment schedules, along with both standard and project-specific notes. The package will also contain construction details, legends, and draft quantities; signing and striping plans prepared at a scale of 1”=40’ using Caltrans Standard Plans and California MUTCD guidelines; RRFB layout and detail sheets for a solar-powered system; technical specifications adapted from Caltrans Special Provisions to meet City standards; and an engineer’s estimate of probable construction cost based on the 60% design quantities. The Traffic Engineer will prepare the 90% submittal plans, incorporating all information included in the 60% submittal and revised to reflect comments received from City staff. The technical specifications will be