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3. Future Roadway System <br />This section addresses future roadway improvement needs and roadway design guidelines <br />3.1. Roadway Capacity -Traffic Forecasting <br />To determine future roadway capacity needs, year 2040 traffic forecasts were prepared using <br />the Metropolitan Council travel demand model. The 2040 projections were compared against <br />the assumed 2040 roadway network to see where roadway segment capacity deficiencies may <br />result. The 2040 roadway network assumed for this analysis is the same as the current roadway <br />network; however, the Current Revenue Scenario includes the installation of MnPASS lanes on <br />I -35W north of TH 36. The City and County Capital Improvement Plans (CIPS) do not include <br />any projects that add significant capacity to the roadway network. <br />While the travel demand model is a valuable tool for identifying future traffic based on the <br />proposed land use impacts, it is not meant for use in detailed traffic operations studies. For a <br />more accurate representation of the transportation impacts from specific developments, detailed <br />traffic studies should be conducted to determine the operational impacts on adjacent roadways <br />and intersections. <br />A central concept of travel demand forecasting is the use of Transportation Analysis Zones <br />(TAZs). Each forecast study area, in this case, the City of Roseville, is divided into a series of <br />TAZs. Each TAZ has population, employment, and household data that is used by the model to <br />assign trips to the various network roadways. Figure 8 displays Metropolitan Council TAZs <br />within Roseville. <br />The results of the Roseville modeling process are summarized in Figures 9 and 10, which <br />display forecasted Metropolitan Council 2040 average daily traffic volumes, and 2040 levels of <br />service based on volume/ capacity ratios. <br />Tables 5a and 5b provide a summary of existing and forecasted demographic growth by TAZ <br />for Roseville through the year 2040. <br />[placeholder for land use and demographic projections] <br />For more information about the demographic allocation and associated land use forecast, please <br />refer to the Roseville Land Use Plan in Chapter X of the Roseville Comprehensive Plan. <br />Chapter X- Transportation (DRAFT) Page X-26 <br />Adopted XXXXXXXXX XX, 2017 <br />