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<br /> <br /> Full Development Conditions <br /> The previous analysis concluded that with the completion of Phase 2 of the <br /> development, with any Scenario, an interchange will be needed on TH 10 / 169 at <br /> Twin Lakes Parkway, to accommodate any future traffic growth. Based on this <br /> assumption, it was determined that there was not a need to analyze each of the <br />remaining development Phases (Phase 3 - 5) separately. Therefore, the Full <br /> Development conditions (all Phases completed) were analyzed to determine if any <br /> further mitigation would be needed to accommodate the full traffic growth of the <br /> area. <br /> For each development Scenario, an analysis was also completed to determine if a <br />' third lane on TH 10 / 169 would potentially delay the need for the interchange at TH <br /> 10 and Twin Lakes Parkway. The analysis of each full build Scenario is discussed <br /> below. <br /> Scenario 1 <br /> Based on the analysis of future traffic volumes for Scenario 1 adding a third lane on <br /> TH 10 / 169 could delay the need for an interchange by approximately eight years. <br />TH 10 / 169 Interchange -The full build conditions were analyzed assuming a <br />standard diamond interchange at TH 10 / 169 and Twin Lakes Parkway with the <br />future roadway network shown in Figure 21-4, and assuming full development of <br />the area. The results of the analysis indicate both ramp intersection would operate <br />at LOS C or better during both the AM and PM peak hours. <br />Twin Lakes Parkway at 168 Avenue -This intersection would experience delays <br />for the westbound 168 Avenue approach turning left on to Twin Lakes Parkway <br />during PM peak hour. The overall LOS at this intersection is projected to be E during <br />the PM peak hour. If a traffic signal system or a roundabout is installed the <br />operations would improve to an LOS A. <br />All other study area intersections would be operating at LOS C or better during both <br />the AM and PM peak hours. Table 21- 21 shows the results of the Full Development <br />/ Scenario 1 analysis. <br /> <br /> <br /> <br /> <br />City of Elk River <br />Draft Alternative Urban Areawide Review <br />August 2011 <br />Page 70 of 90 <br />