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~SeJ t::E.\JW'~ JUN 2 2 2000 3535 Vadnais Center Drive, 200 SEH Center, SI. Paul, MN 55110-5108 651.490.2000 651.490.2150 FAX architecture engineering environmental transportation June 21, 2000 RE: Roseville, Minnesota Minnesota Department of Transportation Regional Transportation Management Center SEH No. A-ROSEV9801.00 Ms. Debra Bloom Assistant Public Works Director City of Roseville 2660 Civic Center Drive Roseville, MN 55113 Dear Deb: We have completed a traffic study of the transportation impacts of the Regional Transportation Management Center being developed as an addition to the Mn/DOT Waters Edge Building on County Road B2. It does not appear that the traffic volumes generated by the addition will create any operational problems on County Road B2 or other area streets. There are a few on-site circulation concerns based on the small scale documents which were provided for review. Mn/DOT has estimated there are 637 employees in the building currently. They have also indicated there will be 84 employees in the Regional Transportation Management Center (RTMC), Mn/DOT currently has both flex hours and shift hours in effect. The flex hours allow employees to begin and end their working day outside of the normal peak hours. Employees are leaving between 2:30 and 6:00 p.m. in the afternoon depending on their start time. Some employees begin work prior to the morning rush hour traffic as part of the management center strategy, or because of flex hours. A turning movement count at the intersection of County Road B2 and the Mn/DOT entrance was made from 3:00 to 5:00 p.m. This would be the time when most traffic is leaving the building and when there is most conflict with the Rosedale area commercial traffic. The A.M. Peak Period does not have the commercial traffic conflicts and is entering the Mn/DOT site, therefore having less conflicts. The peak 15 minute period was from 4:00 to 4: 15 p.m. and had 50 northbound vehicles. During the two hours, there was an average of 33 vehicles in each IS-minute period, or an average of approximately two vehicles each minute. With some peaking characteristics, there is some delay associated with leaving traffic. Traffic northbound leaving the site is split 56 percent left turns and 44 percent right turns. The employees in the RTMC may not all be additions to Waters Edge. There are some RTMC employees currently in the building who will move to different areas. Also, a number of RTMC employees currently start working as early as 6:00 a.m., leaving in mid-afternoon, and others start in the late a.m. and work through the p.m. peak period. Therefore, the RTMC will add little peak period traffic to the existing volumes. Tours which are associated with the RTMC will add little peak hour traffic. Most of the tours will either be during the day or will be there for a peak hour period in which case they will enter prior to the peak period starting. There are a number of visitors associated with the Mn/DOT building during the day. However, the lack of large meeting rooms, with the exception of one combination potential, has placed most larger meetings off Short Elliott Hendrickson Inc. Offices located throughout the Upper Midwest VVe help you plan, design, and achieve. Equal Opportunity Employer