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Pleasanton Gateway— Environmental Checklist constructed and occupied. The "Cumulative Development" scenario addresses the build - out the 2005 — 2025 Pleasanton General Plan with the proposed project and includes the developments that have not received final City approval but are identified to be completed in the long term. The traffic impact study, "Transportation Impact Study, Pleasanton Gateway Retail /Office Plaza ", dated April 2009, prepared for the City of Pleasanton by Fehr & Peers Transportation Consultants, was completed for the proposal analyzing the "Existing/ Baseline /Approved" and "Cumulative" scenarios. The "Pleasanton Gateway — Updated Traffic Assessment ", dated November 10, 2009 also prepared for the City of Pleasanton by Fehr & Peers Transportation Consultants, evaluated the effects of constructing the project in two phases — the commercial /retail section as Phase One and the office section as Phase Two. The overall proposed development — commercial /retail and office — will add approximately 13,740 new trips to surrounding streets, intersections, and freeway entrance /exit ramps resulting in 1,235 a.m. peak hour trips and 1,644 p.m. peak hour trips. The commercial /retail section will add 6,990 new trips resulting in 320 a.m. peak hour trips and 683 peak hour trips. Based on the traffic analysis completed for the updated General Plan, the approved office development will generate 1,110 total trips for the p.m. peak hour. Standards of Significance For purposes of this environmental document, an impact is considered significant if the proposed project would: • Result in reducing the Level of Service from "D" to "E" or worse. Less Than Significant Potentially Impact With Less Than Significant Mitigation Significant No Issues Impact Incorporated Impact Impact Transportation and Traffic Would the project: a) Cause an increase in traffic, which is substantial in X relation to the existing traffic load and capacity of the street system (i.e., result in a substantial increase in either the number of vehicle trips, the volume to capacity ratio on roads, or congestion at intersections)? b) Exceed, either individually or cumulatively, a level of LXJ service standard established by the county congestion management agency for designated roads or highways? c) Result in a change in air traffic patterns, including L] x L either an increase in traffic levels or a change in location that result in substantial safety risks? Page 47 of 52 Pleasanton Gatevvay Initial Study August 2, 2010