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The amount of traffic added to the roadway system by a 170,000 s.f. office centre will be estimated in the same manner as described in Task 3 above. The site-generated traffic will be added to the roadway system. It will be added to the background traffic volumes to represent Project B Conditions. Intersection level of service calculations will be conducted to estimate the operating levels of the key intersections during the AM and PM peak hours after completion of the development. An analysis of queuing at the theater driveways will be conducted to estimate the operating levels of the key intersections during the PM peak hours after completion of the proposed development Task 5 - Identify Significant Impacts and Recommend Mitigation Measures The impacts of the proposed development will be identified by comparing the results of the level of service calculations and queuing analyses for Background Conditions to the results for Project Conditions. According to the City of Redwood City's level of service policy, traffic impacts at signalized intersections are defined to occur when the addition of project traffic causes (1) intersection operations to deteriorate from an acceptable level (LOS D or better) under Background Conditions to an unacceptable level (LOS E or F); or (2) the exacerbation of unacceptable operations (LOS E or F) by increasing the average vehicular stopped delay by five or more seconds at an intersection already operating at LOS E or F under Background Conditions. Traffic impacts at unsignalized intersections are defined to occur when the addition of project traffic causes (1) overall intersection operations to deteriorate from an acceptable level (LOS D or better) under Background Conditions to an unacceptable level (LOS E or F), or (2) the operation of the worst-case turning movement to deteriorate from an acceptable level (LOS D or better) to an unacceptable level (LOS E or F) and traffic volumes to increase so that one or more traffic signal warrants are met, or (3) exacerbation of unacceptable operations (LOS E or F) for the overall intersection by increasing the average vehicular delay by 5 or more seconds, or (4) exacerbation of unacceptable operations (LOS E or F) for the worst-case movement by increasing the average vehicular delay for that movement by 5 or more seconds and the traffic volumes at the intersection increase so that the Caltrans Peak Hour volume for traffic signal installation is met. Recommendations will be formulated to mitigate significant project impacts. These recommendations may include physical improvements, such as adding lanes to intersections or installing traffic signals and construction of the Blomquist Extension. The need for the Blomquist Street extension will be evaluated as part of this task. Possible options for phasing the Blomquist Street extension bridge construction will be identified based on previous work.