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Table 1 SUMMARY OF POTENTIALLY SIGNIFICANT TRANSPORTATION AND TRAFFIC IMPACTS Impact Location Affected Mitigation Physical Improvement or Other Mitigation Level of Impact Measure After Mitigation Impact 4.D-1: Commerce Drive at Johnson Drive Intersection.The addition of vehicle trips generated by Phase I of the EDZ during the PM Install traffic signal. Development Less than facilitated by the peak hour would worsen the side street movement at this 4.D-la Significant proposed EDZ would intersection to LOS F;this condition would be further worsened Construct southbound leftturn lane to Commerce Drive. affect levels of with full EDZ buildout conditions. (Impact 4.D-1a) service at the local Johnson Drive at Owens Drive(North)Intersection.The study intersections addition of vehicle trips generated by Phase I of the EDZ during under Existing plus the Saturday peak hour would degrade the service level at this Project conditions. intersection from LOS C to LOS E. Conditions would be slightly 4.D-1 b Install traffic signal. Less than exacerbated with full EDZ buildout conditions(i.e., conditions Significant would worsen but LOS would not be degraded from E to F). (Impact 4.D-1b) Johnson Drive at Stoneridge Drive Intersection.The 1. Third eastbound left-turn lane to Johnson Drive plus addition of vehicle trips generated by full buildout of the EDZ additional northbound receiving lane on Johnson Drive. during the PM peak hour would worsen conditions at this4.D 1 c 2. Additional southbound right-turn lane on Johnson Drive. Less than intersection from LOS D to LOS E. This impact would not occur Significant under conditions caused by Phase I of the EDZ. (Impact 4.D- 3. Rebuild(widen)Johnson Drive to six lanes(3 southbound 1c) lanes,3 northbound lanes)for a minimum of 700 feet. Stoneridge Drive(Queue Spillback).The addition of vehicle M-TR-1 Implement Transportation Demand Management(TDM) Significant and trips generated by Phase I and full buildout of the EDZ would Program Unavoidable due to result in vehicle queue spillback from Stoneridge Drive onto 1. Stoneridge Drive at northbound 1-680 off-ramp: Provide uncertainty about adjacent intersections and the freeway mainline. (Impact 4.D- northbound right-turn overlap phase. ultimate Caltrans 1d): 2. Second southbound left-turn lane from Johnson Drive for 1-680 ve to improvement(#4) & 1. Vehicleueue spillback from the 1-680 northbound off- Stoneridge Drive. q P the need for all ramp and southbound off ramp onto the freeway 3. Extend westbound right-tum pocket onto Johnson Drive improvements to be mainline. 4.D-1d approximately 800 feet east(widen Stoneridge Drive,convert completed in order 2. Vehicle queue spillback impeding through traffic on resulting lane into through-right-shared lane). to fully mitigate the Stoneridge Drive and blocking access to driveways 4. Second on-ramp lane to northbound 1-680 from westbound impacts. along Johnson Drive. Stoneridge Drive approach(lanes will merge;lane drop Funding:City's TIF, would occur over a distance of at least 800 feet;bridge except M-TR-1— reconstruction and widening). funding from site developer(s) 34