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Scope of Work Preparation of Plans,Specifications and Estimates Sunol Boulevard/I-680 Improvements Project August 21,2023 • Private and public utility information • Sign inventory from Caltrans and the City • Right-of-way information • Pertinent historical correspondence • Pavement Condition Report • Traffic Accident Data, if needed • Traffic Signal and Controller Data • Traffic flow diagrams for the design year showing AM, PM, and ADT volumes Task 2.2 Mapping AECOM will provide Mobile Terrestrial Laser Scanning (MTLS) methods to collect the road features, utilizing conventional methods in MTLS-occluded areas. The survey is necessary to confirm mapping accuracy, topographic surveys necessary to complete the design, including cross sections, verifying existing utilities and drainage facilities, pavement elevations and locations, pavement conforms, vertical clearances, obstructions, tree survey locations, lighting fixtures, fences, retaining walls, creeks, drainage swales and ditches and other features necessary to complete the design. Also to locate features such as curbs, walks, edge of traveled way and other critical existing features. This task includes AECOM obtaining permits from Caltrans, CITY and others for surveying and exploratory works as necessary. 2.2.1 Survey Scope and Approach The primary surveying tasks for this interchange improvement project include Ground Control Surveys, Mobile Terrestrial Laser Scanning (MTLS) Survey Tasks, Supplemental and MTLS GCP Survey Control Reports(SCR), Right of Way Engineering Tasks, Supplemental Topographic Design Surveys, and a Quality Level B (QL-B) Underground Utility Survey. Horizontal and vertical datums will be the same datums as utilized for the Project Approval/Environmental Document(PA&ED)phase of this project, the North American Datum of 1983 (NAD83) California Coordinate System Zone 3 (CCSZ3) Epoch 2014.55 and the North American Vertical Datum of 1988 (NAVD88), respectively. Caltrans (CT) standards contained within Chapters 2, 5, 6, 7, 8, and 9, of the Caltrans Survey Manual will be followed. The MTLS subconsultant will follow standards contained within the CT Mobile Terrestrial Laser Scanning (MTLS) Guidelines dated July 27, 2018. Positional accuracy standards for all surveys will conform to the requirements, specifications, and results of a CT Order 2cm Local Accuracy survey. Mapping products will be provided in Microstation DGN format using CT mapping standards. A CT Encroachment Permit will be obtained for work within the ROW and all permit stipulations will be followed. Page 10 of 42