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� � - � December 18,2003 Mr. Milce Westland 3535 Vadnais Center Drive, St. Paul, MN 55110-5196 651.490.2000 651.490.2150 FAX architecture • eng:neerang • envzronmental • tr¢nsportation RE: Roseville, Minnesota Traffic Study for SuperAmerica SEH No. A-MSPTR.9701.00 14.00 Speedway SuperAmerica LLC 2060 Centre Pointe Boulevard, Suite 1 Mendota Heights, NIN 55120 Dear Mr. Westland: We have completed the traffic study requested for the expansion of the SuperAmerica convenience store and service station at the intersection of Lexington Avenue and County Road B in Roseville, Minnesota. The need for the traffic study is the result of the proposed inclusion of a liquor store in the convenience store complex. The traffic study follows the request from the City of Roseville staff and the Roseville Planning Commission. Existing Traffic Volumes Based on Minnesota Department of Transportation Metropolitan Series Traffic Flow Maps, Lexington Avenue north of County Road B has an average daily traffic volume of 16,500. South of County Road B, the volume is 15,600. Volumes on County Road B are 10,000 to the west and 7,400 to the east. Volumes have changed little in the past 10 years. The 1992 volume map from the same source shows volumes on Lexington Avenue of 18,000 vehicles per day to the north and 16,000 to the south of County Road B. Volumes on County Road B are 10,000 to the west and 7,000 to the east. Review of similar maps in 1990 and 1994 show that the volumes are relatively similar. Thus, there is little volume growth on Lexington Avenue or on County Road B based on historical trends. The most recent turning movement counts at the intersection of Lexington Avenue and County Road B were made in 2001 by Ramsey County. The volumes are consistent with the average daily traffic shown on the Mn/DOT maps. The turning movement counts were made for three 2-hour periods including a.m. and p.m. rush hours and midday. The turning movement counts show the 2-hour westbound approach volumes on County Road B as 702 from 7:00 a.m. to 9:00 a.m., 516 from 11:00 a.m. to 1:00 p.m., and 639 from 4:00 p.m. to 6:00 p.m. Southbound volumes approachingthe intersection in the same three periods are 926, 1,240, and 1,324, respectively. To determine the traffic generated by the convenience store and to better understand traffic flow in and out of the four driveways, a 2-hour turning movement count at the four driveways was made in the p.m. pealc period. As expected, the counts showed little very traffic malcing left turns from the station to the southbound Lexington Avenue. Only 16 left turns were made in the 2-hour period with 13 at the north driveway. Left turns from the south driveways to eastbound County Road B Short Elliott Hendrickson Inc. • Your Trusted Resource • Equal Opportunity Employer