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CENTERVILLE RD (CSAH 21/CSAH 59) AT ASH ST (CR J)/WILKINSON LAKE BLVD PAGE 24 ICE REPORT S.A.P. TBD WSB PROJECT NO. 2988-080 CITY OF LINO LAKES, MN CONCLUSION Traffic volumes at the intersection of Centerville Road (CSAH 21/CSAH 59) at Ash Street (CR J) are expected to rise through 2038 and the existing intersection geometry with the existing all- way stop control is inadequate to handle these volumes with an acceptable level of service. In order to provide improved acceptable levels of service at the intersection, an all-way stop, traffic signal system or roundabout alternatives were considered. Based on the analysis outlined in this document the following can be concluded: 1. Either a traffic signal system or roundabout both with roadway improvements at the intersection of Centerville Road (CSAH 21/CSAH 59) at Ash Street (CR J) will accommodate traffic volumes through 2038. While both alternatives will provide the needed improvements, construction of a roundabout will improve safety and traffic flow by eliminating conflicting turning movements while maintaining acceptable queue lengths and delay times. 2. The implementation of future improvements at the Ash Street (CR J) intersections with I35E, including the addition of the southbound Off-Ramp and northbound On-Ramp to I35E will provide improved access and operations for these intersections. It is therefore recommended that the City of Lino Lakes proceed with the proposed multi-lane roundabout at the intersection Centerville Road (CSAH 21/CSAH 59) at Ash Street (CR J). A roundabout at this intersection is justified. Traffic volumes at the intersection meet required traffic signal warrants as well as, the roundabout will provide improved traffic operations over existing conditions with forecasted traffic volumes and the roundabout is projected to reduce the number and severity of crashes at the intersection. In addition it is recommended that the City continue to work with MnDOT, Ramsey County and Anoka County on the implementation of future improvements on Ash Street (CR J) at the intersections with I35E.