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MODNTAiN HOUSE PROPOSED ALTAmoNT HEIGHTS TENTATIVE MAP 4. ENviRoNmENCAL CHECKLIST <br /> 4.15 TRANSPORTATioNITRAFFIC <br /> v <br /> Less Than <br /> Potential SPIHEIR Significant <br /> Significant Requires Impact Due New New <br /> Impact Additional to Mitigation Additional Additional <br /> Less Than Adequately Review:No Measures in Impact Not Mitigation <br /> Significant Addressed in Significant Project Addressed in Measures <br /> Issue or No Impact SPRIFEIR Impact Description SPIIIEIR Required <br /> 15. TRANSPORTATION/TRAFFIC. <br /> Would the project: <br /> ` a) Cause an increase in traffic which is ■ 11substantial in relation to the existing <br /> Ll Ll traffic load and capacity of the street <br /> system(i.e.,result in a substantial <br /> increase in either the number of <br /> vehicle trips,the volume to capacity <br /> ratio on roads,or congestion at <br /> intersections)? <br /> b) Exceed,either individually or ■ El Ll L]cumulatively,a level of service <br /> standard established by the county <br /> congestion management agency for <br /> r designated roads or highways? <br /> c) Result in a change in air traffic ■ ❑ ❑ ❑ ❑ <br /> patterns,including either an increase <br /> .. in traffic levels or a change in <br /> location that results in substantial <br /> safety risks? <br /> d) Substantially increase hazards due to ■ ❑ Ll Ll ❑ <br /> a design feature(e.g.,sharp curves <br /> or dangerous intersections)or . <br /> incompatible uses(e.g.,farm <br /> equipment)? <br /> e) Result in inadequate emergency ■ ❑ ❑ ❑ ❑ ❑ <br /> access? <br /> f) Result in inadequate parking ® ❑ ❑ ❑ ❑ ❑ <br /> capacity? <br /> g) Conflict with adopted polices,plans, ■ ❑ ❑ H ❑ ❑ <br /> or programs supporting alternative <br /> r transportation(e.g.,bus turnouts, <br /> bicycle racks)? <br /> SETTING <br /> Current Conditions <br /> Interstate 205 (1-205)is a six-lane freeway along the south side of the Mountain House <br /> Community. It provides access to the City of Tracy and Interstate 5 to the east, and Interstate <br /> 580 and the greater San Francisco Bay Area to the west. Mountain House Parkway is a two- <br /> lane roadway extending north and south along the east side of the Mountain House <br /> Community in which the proposed Altamont Heights project is located. The I-205/Mountain <br /> House Parkway intersection is a separated interchange with an overpass for the parkway. <br /> Construction of the improved I-205/Mountain House Parkway interchange is underway. The <br /> interchange improvement includes a six-lane overpass and loop on-ramp from the <br /> southbound lanes of Mountain House Parkway to eastbound 1-205. The segment of <br /> 4-72 <br />