2015-02-24_PWETC_AgendaPacket - Laserfiche WebLink

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Marc Culver, PE February 12, 2015 City of Roseville Page 15 A background growth rate of one-half percent was applied to the existing peak hour turning movement counts to develop year 2030 background traffic forecasts. This is consistent with recent studies completed in the area and the travel demand model forecasts Year 2030 Scenarios As previously mentioned, to understand the impacts to traffic volumes to the study area with the extension of the Twin Lakes Parkway from Prior Avenue to Fairview Avenue, traffic forecasts were developed for year 2030 conditions for the following three scenarios (shown in Figure 5): • Scenario 9 — No build roadway condition with background traffic growth added o Twin Lakes Parkway not extended to Fairview Avenue, background traffic growth, and no additional development in the Twin Lakes Area except currently planned land uses. • Scenario 2 — No build roadway condition with background traffic growth added and full build land use potential included o Twin Lakes Parkway not extended to Fairview Avenue, background traffic growth, and full build land use scenario for Twin Lakes Area. • Scenario 3 —Build roadway condition with background traffic growth and full build land use potential included o Twin Lakes Parkway extended to Fairview Avenue, background traffic growth, and full build land use scenario for Twin Lakes Area. Year 2030 Conditions Planned Roadway Improvements Intersection improvements are planned at the Cleveland Avenue and NB I -35W Ramps/Twin Lakes Parkway intersection and are expected to be completed in the near future. The improvements include the following: • Restriping the westbound approach of Twin Lakes Parkway to include a left-, through, and shared through/right-turn lane • Modifying the eastbound approach to include a left-, two through and a right -turn lane. • Modifying the northbound approach to include a second left -turn lane and a right -turn lane. • Extending the southbound left -turn lane. The City is also considering the extension of Twin Lakes Parkway to Fairview Avenue (analyzed under Scenario 3). This connection will provide access to current and future development in the Twin Lakes area, as well as an alternative route choice for motorists currently traveling through the Twin Lakes area. As part of the Twin Lakes Parkway extension, a traffic signal will be installed at the Fairview Avenue/Terrace Drive (Twin Lakes Parkway).