2005-05-24_PWETC_AgendaPacket - Laserfiche WebLink

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Twin Lakes area. Traffic generation is prepared using the Institute of Transportation Engineers Trip Generation (6th Edition). Land use information provided by the City of Roseville was compared for the highest and lowest possible combinations of traffic generation. It was concluded that the highest possible combination of trips (including big box retail) would generate approximately 7,200 p.m. peak hour trips and the lowest possible combination (including high-flex office) would generate approximately 6,200 p.m. peak hour trips. Because of the uncertainty of the proposed developments in the area, the maximum trip-generating scenario was used for the traffic analysis. The area currently generates 1,300 p.m. peak hour trips therefore the proposed redevelopment generates _ times as much peak hour traffic as currently exists. The p.m. peak hour is critical since it represents the highest level of traffic for impacts assessment. On a daily basis, the alternatives range from approximately _,000 to _,000 trips, compared to 11,300 current (2001) daily trips. The maximum increase is times the amount of traffic currently generated. The retail development does generate more trips than hi-tech hi flex but has a higher ratio of off peak-to-peak traffic. The timing of the Phase I construction/development is expected to be complete within 5 years, by the year 2010. In the AUAR , the City's consultants estimated background traffic growth rates would grow at a rate of approximately 0.5 percent to 1.0 percent per year, depending on the roadway. This rate is consistent with expected growth of the City of Roseville as a whole given that it is fully developed. The AUAR traffic forecasts assumed that 10 percent of the traffic generated in the Twin Lakes area will remain within the area. The AUAR forecast model also estimated that an additional five percent of the traffic would remain in the Rosedale area and therefore have a more limited impact on traffic. The analysis assumed the plamled construction of Twin Lakes Parkway from Cleveland Avenue to Lincoln Drive/Snelling Avenue, with a right-in/right-out to southboillld Snelling Avenue, if possible, or left turn to the controlled intersection at County Road C-2. The Parkway will provide access to and circulation within the redevelopment area and to mitigate the effect of traffic from the redevelopment area on both County Road C and County Road D. Traffic on Twin Lakes Parkway is forecast to approach 15,000 vehicles per day in some segments. A four lane reducing to two lane design (with protected center turning lane) design is adequate for this volume in retail or office areas, however, opportunities to construct the roadway entry as a four-lane with additional right turn lanes have been identified, especially at the Parkway/Cleveland Avenue intersection. In residential areas, tile roads will adequately serve the development. A round-about is planned at tile Parkway intersection with Prior Avenue. 3