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5.ENVIRONMENTAL CHECKLIST MOUNTAIN HOUSE NEIGHBORHOODS K AND L INITIAL STUDY 15. TRANSPORTATION/TRAFFIC economic downturn in the past few years, it has been observed that traffic 1 volumes have been much lower than anticipated. As stated in the 1994 MEIR,traffic congestion on 1-205 and 1-580 would remain an unavoidable adverse impact. 1-205 was recently widened from four to six lanes. The Mountain House Parkwayl1-205 interchange includes a six-lane overpass and loop on-ramp from the southbound to eastbound on 1-205. The Grant Line Roadl1-580 interchange is located in the Alameda County jurisdiction. According to the San Joaquin County and MHCSD adopted Improvement Programs,the MHTIF will fund the improvements to Grant Line Road between the Alameda County line and the road's intersection with 1-580. No other significant impacts would result and no mitigation measures would be necessary. c) Would the project result in a change in air traffic patterns, including either an increase in trafc levels or a change in location that results in substantial safety risks? The Neighborhoods K and L Tentative Subdivision Map project and the buildout of the Mountain House community would not have an impact on air traffic pattems. d) Would the project substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections)or incompatible uses(e.g., farm equipment)? The project would not substantially increase hazards due to design features or incompatible uses. The Master Plan for the Mountain House community stresses design guidelines that require an extensive network of pedestrian and bicycle facilities. The Lammersville Unified School District is currently a part of a "Safe Walk to School"program with the County Office of Education. This program will promote safe walking and biking to school. Bike routes are proposed throughout Neighborhoods K and L. No further mitigation measures would be necessary. e) Would the project result in inadequate emergency access? The traffic in Neighborhoods K and L and the remainder of Mountain House would have access to multiple routes in the event of an emergency. Based on the proposed Tentative Subdivision Maps, all neighborhoods would be connected to several major arterial and collector streets. Consequently, adequate emergency access would be available. No mitigation measures would be necessary. 0 Would the project conflict with adopted policies,plans, or programs regarding public transit, bicycle, or pedestrian facilities, or otherwise decrease the performance or safety of such facilities? Ssnri 1) 5-188