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The traffic model has already been enhanced to provide additional land development and <br />roadway network detail in the Tri-valley. The base roadway network assumes the <br />completion of all roadways in the three cities' General Plans. It also includes: <br /> <br /> · A new eastbound HOV lane on 1-580 from Santa Rita Road to Greenville Road; <br /> · The widening of Route 84 through Pigeon Pass to include truck climbing lanes; <br /> · The widening of Route 84 from Ruby Hill Drive East to Stanley Boulevard to 4- <br /> lanes; <br /> · The widening of Route 84 from Stanley Boulevard to 1-580 to 6-lanes; <br /> · Phase I of the new Isabel interchange at 1-580; <br /> · 1-580 on-ramp metering both eastbound and westbound through all three cities. <br /> <br />By including the three cities' General Plan roadway networks, the study assumes major <br />new roadways like the Dublin Boulevard extension to Livermore and the Jack London <br />extension to E1 Charro Road. It also includes: <br /> <br /> · The Stoneridge Drive extension to E1 Charro Road; <br /> · The West Las Positas interchange at 1-680; <br /> · Full General Plan land use development in Pleasanton, Livermore and Dublin <br /> (including the East Dublin Properties). <br /> <br />Using this roadway network, three-city land development buildout traffic projections, and <br />regional 2025 land development traffic, the study will look for the most cost effective <br />sequence of highway improvement projects along 1-580, 1-680 and Route 84. Highway <br />projects will be evaluated based on how much improvement in traffic circulation they <br />provide per dollar spent, and by how much cut-through traffic they remove from local <br />roadways. If a project increases cut-through traffic, negative, or penalty points will be <br />assigned. <br /> <br />The Triangle Study's Technical Advisory Committee (TAC) and Policy Advisory <br />Committee (PAC) were both advised by City representatives that it was unlikely that <br />the Stoneridge Drive Extension, or the West Las Positas Interchange would be built in <br />the near, or foreseeable future. The TAC and PAC were advised that these roadway <br />elements may be removed from the City's General Plan and that model forecasts <br />including these roadway elements would provide unrealistic circulation information. <br />The majority of the TAC and PAC voted to use the existing General Plans from all <br />three cities, with the understanding that the Tri-valley circulation system and planned <br />land development could change in many unforeseeable ways over the next 25 years. <br /> <br />SR:05:134 <br />Page 3 of 5 <br /> <br /> <br />