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Theresa Wallace, LSA Associates, Inc. April 20, 2017 Page 3 of 5 mainline segments closest to the Project (north and south of Woodside Interchange), and four freeway ramps that Project traffic would use to access the US-101 from Woodside. Construction of a Blomquist Extension to East Bayshore Road and the Whipple Avenue Interchange is being considered as a variant of this Project. Therefore, we will prepare two versions of the trip assignment for Existing Plus Project conditions – (1) without t he Blomquist Extension for the Project and (2) with the Blomquist Extension for the Project Variant. The Blomquist Extension is included in the City’s Transportation Impact Fee program and is reasonably foreseeable to be a part of the cumulative roadway network, and will therefore be included under all cumulative scenarios. In addition to generating this information for the Project, we will determine the traffic generated by the development assumed in the cumulative build-out of the Redwood City General Plan. The methodology for determining the travel demand of these land uses will be similar to that of the Proposed Project. This information will be used to develop Cumulative No Project traffic conditions as described below in Task 5. Task 4 – Existing Plus Project Conditions Fehr & Peers will add the Project-generated vehicle trips developed in Task 3 to the existing conditions traffic volumes developed in Task 2 to create Existing Plus Project and Project Variant Conditions traffic volumes. Fehr & Peers will complete an impact assessment by comparing the results of Existing Plus Project Conditions to the Existing (no Project) Conditions for the eight study intersections, two future Project driveways, two freeway mainline segments, and four freeway ramps. We will complete this impact assessment for the Project and Project Variant conditions. Identification of impacts will be determined by comparing the results to the City’s Significance Criteria presented in the Redwood City General Plan. We will identify mitigation measures for significant impacts and discuss feasibility and implementation factors with City Staff for comment and concurrence prior to completing the study. Task 5 – Cumulative Conditions Fehr & Peers will use Cumulative (year 2040) forecasts previously prepared for the IHSP DEIR as a starting point to create Cumulative intersection turning movement forecasts. To create Cumulative No Project turning movement forecasts, we will start with the Cumulative without IHSP turning movement forecasts, which assumed no new development anywhere in the study area. We will then manually add the traffic generated by the development assumed in the Redwood City General Plan described in Task 3 to these forecasts to create Cumulative No Project volumes. These volumes will account for a condition where no change to zoning would occur at the Project site. We will then develop Cumulative Plus Project volumes by adding the Project generated traffic to the Cumulative No Project forecasts. We will apply a credit for the removal of the land uses currently allowed for the Project Site after confirming this approach with the City. Fehr & Peers will complete an impact assessment by comparing the results of Cumulative Plus Project Conditions to the Cumulative No Project Conditions. Identification of impacts will be determined by comparing the results to the City’s Significance Criteria. We will identify mitigation ATTY/AGR/2017/AMENDMENTS/AMEND NO.1 LSA ASSOCIATES INC. REV: 05-03-17 VR Page 24 of 27 6.1.A. - Page 27