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'" e e LrQ:::& r "'SeJ 3535 VADNAIS CENTER DRIVE, 200SEH CENTER, ST. PAUL, MN 55110 651490-2000 800325-2055 ARCHITECTURE ENGINEERING ENVIRONMENTAL TRANSPORTATION March 3, 1999 RE: Roseville, Minnesota Lyndale Ga~den ~enter Oakcrest A venue at Snelling A venue SEH No. A-ROSEV9801.00 Ms. Debra Bloom, P.E. Assistant Public Works Director City of Roseville 2660 Civic Center Dri ve Roseville, MN 55113-1899 Dear Deb: We previously provided some information regarding the traffic impacts of the proposed Lyndale Garden Center in the existing HOM building on Oakcrest A venue just west of Snelling A venue. The City Council discussion led to some additional questions. This letter is to answer those questions. We have again reviewed the traffic forecast for volumes for a design day. We have forecasted between 400 and 500 vehicles per day on a design day, and assumed 450 for numerical analysis. . This was done based on references to the Institute of Transportation Engineer's data and on data we have obtained from other nurseries. We have since obtained some specific data from Lyndale Garden Centers which confirms the design day volume 450 is reasonable for analyses. The month of May is traditionally the heaviest month for businesses of this type. We anticipate that there will be several days in May when the 450 vehicles per day are exceeded, primarily on Saturdays. However, with the exception of possibly parts of April and June, the rest of the year will see less than the design volume. Based on information, approximately one third of all business in the nursery center is done in May. Conversely, January does approximately five percent of the May volume or between one and two percent of the annual business. Excluding May and January, we would anticipate a typical design day would be more in the neighborhood of 325 vehicles per day. We have tried to compare this land use with others which may be permitted in a Limited Business District (B-1). As an example, a 10,000 square foot general office building would generate between 130 and 150 vehicle trips per day with approximately 20 in the p.m. peak hour. H<;>wever, it appears that the site could support a larger office building and still have sufficient parking. If the building were doubled in size, the traffic volume on an average day would be between 260 and 300 vehicle trips per day. These would be an average throughout the year and would be fairly consistent regardless of season. These would also generate a somewhat higher peak volume because of the orientation of the office to formal starting and finishing. times. A 10,000 square foot medical office . building' would have an average of over 360 vehicle trips per day and if expanded to 20,000 square feet could generate up to 720 vehicIetrips per day with approximately 75 in the p.m. peak hour. SHORT ELLIOTT HENDRICKSON ING. MINNEAPOLIS, MN Sf CLOUD, MN CHIPPEWA FALLS, WI . MADISON, WI LAKE COUNTY, IN d (1 \ ~.~.,v ~ EQUAL OPPORTUNITY EMPLOYER