2019.08.07 EDC Packet - Laserfiche WebLink

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Traffic Impact Study i New Brighton Exchange Update Executive Summary Background: Spack Consulting prepared a Traffic Impact Study for the New Brighton Exchange in 2014. That study included analysis for a large amount of development along the Old Highway 8 corridor in New Brighton, Minnesota. Since that study was completed, a significant portion of the proposed development has been constructed. This study revisits the 2014 TIS to det ermine if the recommendation from that study of a traffic signal at Old Highway 8/14 th Street is still valid or if different traffic control is needed as well as if the configuration of Old Highway 8 could be modified. Results: The principal findings of this study are: • The remaining development sites for the New Brighton Exchange are expected to generate approximately 3,200 new trips during an average weekday, 350 new trips during the a.m. peak hour and 380 new trips during the p.m. peak hour. • All study intersections currently operate acceptably in the a.m. and p.m. peak hours. • The signalized intersections of Old Highway 8/Highway 96 and Old Highway 8/10th Street are forecast to operate acceptably through the 2033 Build scenarios. • The westbound 95th percentile queue lengths in the 2033 Build p.m. peak hour at Old Highway 8/14th Street and Old Highway 8/Northwest Parkway are forecast to be longer than desired. • Old Highway 8 has daily volumes that would be able to be supported by a conversion to a three-lane road. • Significant 95th percentile queue lengths are forecast for the 2033 Build p.m. peak hour at the three stop-controlled study intersections when Old Highway 8 is converted to a three- lane road. Recommendations: The following items are recommended based on the analys es contained in this study: • Move sight distance obstructions at Old Highway 8/Northwest Parkway to allow for adequate sight distance for vehicles on the side street approaches without needing to pull into the crosswalks. • Stripe westbound 14th Street and Central Park Boulevard to operate with two westbound approach lanes at Old Highway 8. • Once the New Brighton Exchange is fully constructed, new counts be collected, and signal warrants be run for the stop-controlled study intersections to determine if/when a signal would be needed based on volumes. • Keep the current four-lane layout along Old Highway 8.