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SUNOL BOULEVARD/I-680 IMPROVEMENTS PAdrED ASSUMPTIONS The estimate of labor hours and time scheduled to perform the work is limited by the following assumptions and as may be noted elsewhere. Study Alternatives • The introduction of new study alternatives after environmental technical studies are complete is not included in the scope of services. • One Build and a No Build Alterative will be evaluated. Project Limits • The project limits will be based on the limits shown on the PSR- PDS. Right of entry • Encroachment permit applications to perform design activities within Caltrans,County and CITY right of way will be prepared by CONSULTANT for CITY's signature. Mapping • CONSULTANT has base mapping for the project area within the State Right of Way and proposes to use the existing mapping for the PA&ED phase of work. . Mapping will be in English units and provided in MicroStation format. Survey • All surveys will conform to the current CALTRANS Surveys Manual.Datum's will be 1983 NAD(Horizontal) and 1988 NAD(Vertical). • Caltrans will provide existing survey control. Monuments in the Route 680 right of way are assumed to be in Caltrans current coordinate system and not require a separate GPS survey to tie them into adjacent state facilities. • Survey work will be performed during daylight hours,based on an eight hour workday. Non-Standard Design Exceptions • One (1) mandatory and one (1) advisory Fact Sheet will be prepared for design exceptions associated with the Build Alternative. Traffic Studies • Traffic forecasts will be for year-2045 • Accident data for the three years prior to the commencement of this study will be used. Value Engineering • Value Engineering is not included in this scope of work. April 10,2020 29