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Scope of Work <br />US 2 Trestle Interim Improvements 7 April 2026 <br /> Design year (2050) AM and PM peak period traffic volumes will be developed based on the <br />traffic volumes documented in the US 2 Trestle PEL project <br /> VISSIM Operations Analysis: One No Build and up to two Build configurations will be modeled. <br />It is assumed the VISSIM model study limits will be the same as the US 2 Trestle PEL. <br />Measures of effectiveness (MOEs) reported will be consistent with the US 2 Trestle PEL. It is <br />assumed the calibrated No Build VISSIM model from the US 2 Trestle PEL will be used for No <br />Build and modified for the Build configuration(s). <br /> Local Operations Analysis: Synchro and/or Sidra will be used to analyze the adjacent ramp <br />terminal intersections for the study periods and years. Up to ten (10) intersections will be <br />included in this analysis. These 10 intersections will include collect traffic count data for the <br />AM and PM peak periods. <br /> Safety Analysis: A safety analysis consistent with WSDOT’s Safety Analysis Guide for Design <br />Projects (2024) will be conducted. The appropriate level of analysis will be discussed and <br />reviewed with WSDOT. Applicable analysis from the US 2 Trestle PEL may be utilized. <br />The operational and safety analysis will be reviewed by WSDOT and FHWA prior to documentation in <br />subtask 02-04. <br />Assumptions <br />Assumptions for this task include: <br /> Data from previous (City of Everett I-5/US 2 Interchange Planning Study) and current efforts <br />(WSDOT US 2 Trestle Project) will be requested and utilized for the ARR. Therefore it is <br />assumed one new travel demand modeling scenario would be run using the WSDOT US 2 <br />Trestle SoundCast model.. <br /> The same analysis assumptions as the US 2 Trestle PEL project, including study area, time <br />periods, analysis year, and measures of effectiveness will be applied to this project. <br /> The 2050 No Build calibrated VISSIM model from the US 2 Trestle PEL Project will be used as <br />the baseline model. It is assumed some additional validation would be required with this <br />VISSIM model based on WSDOT and/or FHWA traffic review. <br /> Traffic counts would be collected for up to 10 intersections in the AM and PM peak periods. <br /> Scenarios will include 2050 No Build and up to two Project (Build) configurations. <br /> Up to four (4) meetings with WSDOT and FHWA to review the operational and safety analysis. <br />Deliverables <br />Deliverables for this subtask include: <br /> Traffic Technical Memorandum (ARR-ready documentation). <br /> VISSIM data output in PDF <br /> VISSIM models <br />Subtask 02-03 – ARR Design support <br />The CONSULTANT shall provide roadway design and engineering support for the ARR: