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7A Page 23 the emissions associated with a higher of fuel sales volume was considered in the air quality analysis, which was revised and is discussed in the Final EIR (see page 3-4, "Air Emissions," and the Master Response to Air Quality starting on page 3-9). The results of the revised analysis conclude that emissions associated with all of these operational factors will be well below all applicable public health thresholds established by BAAQMD. Item #6: This comment expresses concern that because the traffic analysis did not account for trips from the Stanford project in the near-term, the potential for cut-through traffic on neighborhood streets is understated. As previously described, the Stanford project trips were included in the cumulative analysis. In addition, the trip distribution used in the traffic analysis accounts for some traffic using the local residential streets (Willow and Charter Streets) to access the Costco project site. This analysis identified an impact on the Willow Street roadway segment and no other study segments. Cut through traffic is expected to increase on Willow and Charter and not on Scott and Flynn because of important physical differences between these streets as well as the relative traffic volumes using them. In the southbound direction, Wiliow and Charter offer full views of the Costco site which, for the assumptions of the Costco traffic analysis, is the destination and/or origin of these trips. Their intersections with Middlefield will both be fully signalized. In the northbound direction, Willow and Charter Street traffic combine north of Stambaugh onto Charter and lead to a four-way stop controlled intersection at Charter and Spring. These streets are relatively straight. In the southbound direction, Scott and Flynn Avenues merge together into one street (Flynn), and are stop sign controlled at the intersection with Middlefield Road. In the northbound direction, after Flynn Avenue separates into Scott and Flynn, these two streets intersect with Spring and are controlled by stop signs. Both of these streets are curvilinear and are less visible from the Costco site than Willow and Charter. They are not the most obvious or "direct" routes. Tube counts, which were conducted on all of these streets, confirm this assumption. In the existing condition, Charter Street carries approximately 10 times more daily trips than Scott and 5 times more daily trips than Flynn. It is expected that Charter would continue to be the dominant route, with VViIlov.J as a secondary route, if a signal is provided (as proposed by the project) at the intersection of Willow and Middlefield Road. Of further note, the intersection of Woodside and Middlefield Roads is expected to function at a very similar level of service as it does now. The delay associated with an increase in traffic from the Costco project can be offset by improvements to Middlefield Road, which are proposed as part of the project by Costco. Thus, the motivation to "cut- through" and deviate from a main route by taking a residential side street should not significantly increase from the existing condition. Traffic calming measures to address existing conditions remain available to this neighborhood. Item #7: The local access streets were analyzed to measure the effect that the Costeo project-generated traffic would have in the immediate area surrounding Costco. The other regional roadway segments were not analyzed because the volume of project traffic is expected to be low on those roadways as described herein. The Costco warehouse is an existing operation with an established market base; most people fuel their vehicles while traveling to their destination (instead of making a special trip only to get gas). As a result, the trip surveys of existing Costco stores indicate that the project will generate approximately 80 net new trips during the PM peak hour. As shown in the 5