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Table 5 — Forecasted PM Peak Hour LOS Results <br />Intersection <br />2011 <br />2011 <br />2024 <br />2024 <br />No -Build <br />Build <br />No -Build <br />Build <br />TH 169 and County Road 12 <br />E <br />D <br />F <br />F <br />Main Street <br />County Road 12 (Main Street) and <br />B <br />C <br />C <br />D <br />County Road 13 Line Avenue <br />County Road 12 (Main Street) and <br />A/B' <br />A/C' <br />A/C' <br />AID' <br />County Road 40 (Cleveland Street) <br />County Road 13 (Twin Lakes Road) <br />AIB' <br />AIC' <br />A/B' <br />A/C' <br />and County Road 40 Davis Street <br />County Road 40 (Davis Street) and <br />n/a <br />AIB' <br />n/a <br />AIB' <br />proposed North Road <br />County Road 40 (Davis Street) and <br />n/a <br />AIA' <br />n/a <br />A/A' <br />proposed South Road <br />'The first LOS gives the LOS for the intersection and the second LU5 gives the LU5 for the <br />stopped approach. <br />The Level of Service Calculations are in the Appendix. They include LOS <br />calculations for each intersection approach. <br />For general planning purposes, upgrading a two-lane roadway to a four -lane <br />roadway should be considered when the AADT is approximately 10,000 vehicles. <br />An undivided four -lane roadway should be considered for improvement to a <br />divided four -lane roadway when the AADT approaches 18,000 vehicles. These <br />are general planning rules. TH 41 operates successfully south of TH 5 in Chaska <br />as a two-lane roadway and it carries over 17,000 vehicles per day. The number <br />of access points and the traffic control at the access points generally dictates a <br />corridor's capacity. The daily traffic forecasts are shown in Figures 10 and 11. <br />The two lane sections of County Road 12 (Main Street) and County Road 13 <br />(Line Avenue/Twin Lakes Road) east of their intersection are forecasted to carry <br />approximately 12,000 vehicles under the 2024 build scenario and 9000 vehicles <br />under the no -build scenario. <br />5.Mirigation Measures <br />TH 169/County Road 12 (Main Street) Intersection <br />All of the study intersections will operate at LOS D or better in the 2024 Build <br />peak hours except the intersection of TH 169 and County Road 12 (Main Street). <br />This intersection will operate at an unacceptable Level of Service E in 2011 <br />whether the Orrin Thompson Homes are built or not. Mn/DOT's April 2002 <br />Highway 101/169 Corridor Plan documented strategies for preserving TH 169 as <br />an Interregional Corridor from Rogers to Princeton. The plan documents thirteen <br />potential highway capacity improvement projects along the corridor. Upgrading <br />the TH 169/County Road 12 (Main Street) intersection to an interchange and <br />adding an overpass at School Street had the third best Benefit -Cost Ratio of the <br />Orrin Thompson Homes, Elk River, MN 15 EAW Appendix A <br />Traffic Impact Report Apr# 2004 <br />