13 ATTACHMENT 07 - Laserfiche WebLink

2. The "Pleasanton Gateway -- Updated Traffic Assessment ", dated November 10, 2009, evaluated the effects of constructing the project in two phases — the commercial section as Phase One and the office section as Phase Two (Exhibit K). These analyses included the previously proposed service station that is no longer part of this proposal. The City's Traffic Engineered that its mitigation measures were applicable to the present proposal. These studies determined that the proposed development — Phase I and Phase II — 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. Phase 1, the commercial section, will add 6,990 new trips resulting in 320 a.m. peak hour trips and 683 peak hour trips, and Phase II, the office section, will add 915 a.m. peak hour trips and 961 p.m. peak hour trips. Based on the traffic analysis completed for the updated Pleasanton General Plan, the approved office development will generate 1,110 total trips for the p.m. peak hour. The traffic impact study identified the mitigation measures that will mitigate the impacted City intersections to LOS D. The Pleasanton Gateway development will be constructed in two phases, Phase I and then Phase II, to coordinate the construction of the street, intersection, and freeway improvements with levels -of- service. As conditioned, the applicant will construct street improvements in the following order: 1. With construction of Phase I: • Bernal Avenue /Koll Center Drive /Protect Driveway: Construct temporary improvements to allow construction traffic into and out of the site at the Bernal Avenue /KoII Center Drive intersection, including temporary signal indications for left- and right -turn movements, prior to construction of any on -site improvements. Modify the intersection of I3ernal Avenue and Koll Center Drive to allow northbound left -turn and right -turn traffic out of the project site, eastbound right - turn and westbound left -turn traffic into the project site, and pedestrian access across Bernal Avenue on the right leg of the intersection. • Valley Avenue: Widen Valley Avenue by two feet in the south bound direction between Bernal Avenue and the first driveway opening to allow for two southbound through lanes. Between the first driveway and the roundabout to the south of the curb lane, the street shall then transition from two lanes into one through lane with a long taper. 2. With construction of Phase 11: • Northbound I- 680 /Bernal Avenue Entrance Ramp: Widen the northbound 1- 680 /Bernal Avenue entrance ramp from one lane to two lanes. Construction and occupancy of Phase 1 (commercial /retail section) is allowed to proceed absent widening the entrance ramp. Construction permits Pleasanton Gateway Page 24 of 35 August 25, 2010