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air quality impacts related to the modified project would continue to be less than significant with implementation of the above-noted mitigation measure. Transportation and Circulation Mitigation Measure 2 The following traffic improvements shall be constructed by the applicant/project developer prior to occupancy of the new office building: a. Foothill Road at Canyon Way Intersection The project developer shall construct a third southbound left-turn lane on Foothill Rd. (with an additional eastbound lane on Canyon Way to accommodate the new southbound left-turn traffic). b. Stoneridge Mall Road at Stoneridge Drive Intersection The project developer shall construct additional southbound left-turn storage capacity by widening the west side of Stoneridge Mall Road and realigning the roadway as generally shown in Figure 8 (the figure can be viewed in the Mitigated Negative Declaration). c. Stoneridge Mall Road at Shared BART Garage/Project Driveway The project developer shall install a traffic signal at this intersection including the necessary modifications to the Stoneridge Mall parking lot on the opposite side of the shared driveway. Similar to the approved project, the modified project would result in additional trip generation. Because the modified project includes the elimination of the southern parking garage, an increase in size of the northern parking garage, a new basement garage, and related on-site circulation changes, an updated traffic study was conducted to determine whether these revisions would change the off-site traffic mitigation required with the approved project. The updated traffic study was prepared by Fehr and Peers, acting as the City's traffic consultant. The updated traffic study determined that the prior traffic mitigation in the 2014 traffic study would adequately mitigate the traffic generated from the modified project. Therefore, the traffic impacts related to the modified project would continue to be less than significant with implementation of the above-noted mitigation measures. The updated traffic study assumed that the Workday driveway on Stoneridge Mall Road would be signalized and operated as a single intersection with the shared BART/Workday driveway given the close intersection spacing between the two driveways. Because the proposed plans do not indicate that the Workday driveway would be signalized, a condition of approval will require that this intersection be signalized by the applicant. Summary In summary, the modified project would be required to implement all of the mitigation measures identified in the Mitigated Negative Declaration for the approved project. Implementation of these mitigation measures and applicable conditions of approval would ensure that, similar to the approved project, the modified project would not result in any impacts beyond those considered in the Mitigated Negative Declaration, and all impacts would continue to be less than significant. Impacts in other typical areas (aesthetics, utilities, biological resources, etc.) wouldn't increase in severity due to the modified project. In addition, the circumstances surrounding the project (e.g., surrounding land uses, traffic, etc.) haven't substantially 4