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Grey Fox Road Redevelopment – Arden Hills <br />Traffic Impact Analysis │ June 2022 <br />4 <br /> <br />INTRODUCTION <br />Launch Properties is proposing a 3,070-square foot medical-dental office building, a one tunnel car wash, <br />a 2,210-square foot walk-in bank, and a 3,510-square foot restaurant with a drive through on the northwest <br />corner of the intersection of Lexington Avenue & Grey Fox Road in Arden Hills, MN. The existing site is an <br />approximately 56,000-square foot, industrial use building. Exhibit 1 shows the proposed project location. <br />All exhibits are included in Appendix A. <br />EXISTING ROADWAY CONDITIONS <br />The proposed development is located on the northwest corner of Lexington Avenue & Grey Fox Road in <br />Arden Hills, Minnesota. The following existing intersections will be included in the traffic capacity analysis: <br />x Lexington Avenue and Grey Fox Road <br />x Grey Fox Road and Site Access 1 <br />The study intersections listed above are shown in Exhibit 1. <br />EXISTING ROADWAYS <br />Access to the development will be on Grey Fox Road. The following provides a detailed description of the <br />surrounding roadways. <br />Lexington Avenue (CSAH 51) is currently a north-south five-lane undivided County State Aid <br />Highway (CSAH) with two lanes in each direction and a two way left turn lane, however in spring <br />of 2022 construction is planned to convert the roadway to a four-lane divided roadway. These <br />geometric changes will be incorporated into the Opening Year (2023) and Design Year (2040) <br />models. The MnDOT Functional Classification System Map classifies Lexington Avenue as a Minor <br />Arterial Roadway. The MnDOT Traffic Mapping Application reports an annual average daily traffic <br />(AADT) of 21,300 vehicles per day (vpd) in 2019 on Lexington Avenue. The posted speed limit on <br />Lexington Avenue is 40 miles per hour (mph). <br />Grey Fox Road is a two-lane east-west roadway with one lane in each direction. Grey Fox Road <br />is classified as a Local Road according to the MnDOT Functional Classification System Map. The <br />MnDOT Traffic Mapping Application reports the AADT on Grey Fox Road as 3,450 vpd in 2017. <br />The current posted speed limit on Grey Fox Road is 30 mph. <br />Exhibit 2 provides the future intersection geometry and intersection control for the study intersections. <br />EXISTING TRAFFIC VOLUMES <br />To analyze the traffic operations at the study intersection, weekday peak period turning movement counts <br />were collected on Thursday, June 17, 2021. Exhibit 3 provides a summary of the weekday AM and PM <br />peak hour turning traffic volumes. The turning movement count data is provided in Appendix B. <br />The network AM peak hour was determined to be 8:00 AM to 9:00 AM and the network PM peak hour was <br />determined to be 4:15 PM to 5:15 PM. <br />The 2021 turning movement counts were compared to historic AADT on Lexington Avenue and Grey Fox <br />Road and 2018 turning movement counts in the area to determine if there are still variations in traffic