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Pleasanton Gateway Environmental Checklist 15. TRANSPORTATION AND TRAFFIC Environmental Setting The Stanley Boulevard/Bernal Avenue/Valley Avenue intersection is operating at level-of-service "D" and "E" for the critical a.m./p.m. peak commute hours (7:30 a.m. to 8:30 a.m. and 4:30 p.m. to 5:30 p.m.), respectively. Program 2.5 of the Circulation Element of the Pleasanton General Planl states, "Re- quire whatever mitigation measures are necessary, including the withholding of building permits, to re- turn intersections to acceptable levels, in the event that LOS "D" is exceeded." 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'ihan Potentially Significant Less than Significant With Mitigation Significant No Issues Impact Incorporated Impact Impact Transportation and Traffic Would the project: a) Cause an increase in traffic, which is substantial in re- ^ ^X ^ ^ lation to the existing traffic load and capacity of the street system (i.e., result in a substantial increase in ei- ther the number of vehicle trips, the volume to capac- ity ratio on roads, or congestion at intersections)? b) Exceed, either individually or cumulatively, a level of ^ service standard established by the county congestion management agency for designated roads or high- ways? c) Result in a change in air traffic patterns, including ei- ^ ther an increase in traffic levels or a change in location that results in substantial safety risks? d) Substantially increase hazards due to a design feature ^ (e.g., sharp curves or dangerous intersections) or in- compatible uses (e.g., farm equipment)? e) Result in inadequate emergency access? f) Result in inadequate parking capacity? ^ ^ ^ ^ X^ Pleasanton Gateway Initial Study Page 33 of 37 November 8, 2006