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MOUNTArN HOUSE PROPOSED ALTAMONT HEIGHTS TENTATIVE MAP 4. ENVIRONMENTAL CHECKLIST <br /> 4.15 TRANSPORTATION/TRAFFIC <br /> k'Less Than' <br /> Potential SPIIIE1R - Sign[ticant. <br /> Significant Req�iires Iiitpact'Due New New <br /> Impact A'a"'nat to Mitigation-a Additl6riM r" ''Additional . <br /> i LessTAan gvAdequately Review:No :.-Measures'iii lin&alloi;r 1Miiig3t€on <br /> !. Significant Addressed in, Significant Project., Addressed m.` Measures <br /> Issue - ok No Impact SPIIIEIR Impact" Description SPIIIEIR: Required <br /> 15. TRANSPORTATIONlTRAF)FIC: f <br /> Would the project: <br /> a) Cause an increase in traffic which is: <br /> substantial in relation to the existing , ■ ❑ ❑ ❑ 0 <br /> traffic load and capacity of the street a <br /> system(i-e-,result in a substantial <br /> increase in either the number of 1 <br /> vehicle trips,the volume to capacity 1 <br /> ratio.on roads,or congestion at. <br /> intersections)?_ <br /> b) Exceed,either individually or ❑ ■ ❑ ❑ 0 1-1cumulatively,a level of service <br /> standard established by the county <br /> congestion management agency for <br /> 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? i <br /> d) Substantially increase hazards due to ■ <br /> a designfeature e. sharp ❑ <br /> ( g.,sh curves <br /> or dangerous intersections)or <br /> incompatible uses(e.g.,farm <br /> equipment)? <br /> e) Result access?n inadequate emergency ■ ❑ ❑ ❑ ❑ ❑ <br /> f) Result in inadequate parking ■ ❑ ❑ ❑ ❑ ❑ <br /> capacity? <br /> g) Conflict with adopted polices,Plans, ■ El El 11 EJ F1 ' <br /> or programs supporting alternative <br /> transportation(e.g.,bus turnouts, <br /> bicycle racks)? <br /> SETTING <br /> t Current Conditions <br /> t 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 1 <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 improveirlent 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 /> i <br /> 4-72 <br /> 4 <br />