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Debra Bloom,, P.E. <br />City of Roseville <br />RegionaI Travel Pattern Shii fts <br />July 13, 2011 <br />Page 12 <br />The license plate O-D study provides an understanding of travel patterns at the local level under <br />current conditions. In order to understand the expanded attraction this connection may have on <br />the transportation system, if any, the Metropolitan Council Regional Travel Demand Model was <br />used to identify potential pattern shifts from outside of the immediate study area. The regional <br />model takes into account current and planned households, employment figures, and <br />transportation network changes (under future conditions) to project traffic volumes and travel <br />patterns. The future construction of Twin Lakes Parkway was considered under future <br />conditions to understand if this connection would provide an efficient route for trips to this area. <br />It was determined that fewer than five percent of the proposed Twin Lakes Redevelopment Area <br />travel shed will use either Josephine Road or County Road C2. Therefore, the County Road C2 <br />connection does not serve a significant amount of traffic destined for the Twin Lakes <br />redevelopment area. <br />Based on the Regional Travel Demand Model, approximately 450 vehicles per day will divert <br />from County Road C to use County Road C2. Other regional system travel pattern shifts include <br />a reduction of approximately 350 vehicles per day from other regional routes in the area (i.e., <br />I <br />Snelling Avenue, County Road B2, TH 36, County Road E, etc.). Therefore,, the potential <br />County Road C2 connection regional travel pattern shift would be approximately 800 vehicles <br />per day under year 2011 conditions. <br />Overal] Travel Pattern Shii fts <br />The local and regional travel pattern shifts combined together result in a year 2011 diversion of <br />approximately 1,900 vehicles per day using County Road C2 if the connection were constructed. <br />This results in a year 2011 County Road C2 average daily traffic volume of approximately ,510 <br />between Hamline Avenue and Lexington Avenue. Figure 9 shows the net change for the key <br />east/west roadways within the study area and the expected year 2011 average daily traffic <br />volumes if the County Road C2 connection were constructed. <br />Year 2011 , Peak Hour Intersection Operations <br />To establish a baseline for the area intersection operations, a p.m. peak hour intersection capacity <br />analysis was completed. This analysis was used to compare the operational impacts with and <br />without the potential County Road C2 connection. The operations analysis was conducted using <br />a combination of the Highway Capacity Manual (HCM) and Synchro/SimTraffic software <br />(version 7). The current p.m. peak hour volumes collected and the modified p.m. peak hour <br />volumes based on the potential County Road C2 connection that were used for the operations <br />analysis are shown in Figure 10. It should be noted that only the p.m. peak hour was reviewed <br />due to it representing a worst-case scenario for the adjacent roadway network. This has been <br />validated with the daily data that has been collected. <br />