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Traffic Study <br />Lexington Avenue Reconstruction <br /> <br /> <br />Alliant No. 118-0186.0 36 <br />April 18, 2019 <br />4.5 Selection of Preferred Alternative <br />Based on the preliminary alternatives analysis, geometric considerations evaluated, preliminary <br />comparison matrix, and discussion with Ramsey County, the City of Arden Hills, and the <br />City of Shoreview, Alternative 4 was selected for detailed evaluation with the inclusion of a <br />southbound right-turn lane at Grey Fox Road (listed under Alternative 5). <br />4.6 Preferred Alternative Analysis <br />The goal of the preferred alternative analysis is to evaluate in greater detail the selected <br />improvements and to present the key decision-making factors that aid in developing the study <br />recommendations. Key elements of the preferred alternative analysis include: <br />x Operational analysis of the forecast year 2040 a.m., midday, and p.m. peak hours <br />x Document key decision-making factors <br />4.6.1 Preferred Alternative Traffic Operations Analysis <br />In addition to the year 2040 p.m. peak hour already analyzed under the preliminary alternatives <br />traffic operations analysis, the year 2040 a.m. and midday peak hours were analyzed using <br />Synchro/SimTraffic software. Results of the preferred alternative traffic operations analysis shown <br />in Table 11 indicate that each study intersection is expected to operate at LOS C or better during <br />the year 2040 peak hours, except the Lexington Avenue / CR E intersection which operates at <br />LOS D during the p.m. peak hour. Detailed operations and queuing analysis results are presented <br />in Appendix A. <br />Table 11. Operations Analysis Summary – Preferred Alternative (Forecast Year 2040) <br /> <br /> <br />Lexington Avenue & Red Fox Road B / C 11.7 / 28.8 C / D 25.2 / 36.3 C / D 26.9 / 44.5 <br />Lexington Avenue & Lexington Station <br />Lexington Avenue & Target South <br />Lexington Avenue & Enterprise/Big O Tires/Arby's A / B 0.6 / 10.1 A / A 1.3 / 9.6 A / B 1.3 / 11.4 <br />Lexington Avenue & Grey Fox Road A / C 6.8 / 29.3 B / D 16.7 / 38.8 C / D 20.0 / 43.4 <br />Lexington Avenue & Shannon Square A / A 2.0 / 6.2 A / B 3.6 / 10.6 A / C 4.9 / 17.1 <br />Lexington Avenue & CR E C / C 22.9 / 35.0 C / D 27.5 / 44.1 D / E 42.7 / 62.2 <br />Overall Intersection LOS / Worst Approach LOS <br />Overall Intersection Delay / Worst Approach Delay <br />A /D 8.2 /30.111.5 /34.0A/D 3.4 /28.8 B /D <br />Intersection AM Peak Hour MID Peak Hour PM Peak Hour <br />LOS Delay (s)LOS Delay (s)LOS Delay (s)