Derek LeuerPhone: 651/234-7372Email: Derek.Leuer@state.mn.us Active Projects TitleYearReport #ResearcherRoundabouts, J-Turns, etc. — Understanding their Economic Impacts2024N/AGodavarthyIdentification and Assessment of Preventative Methods to Mitigate Cognitive and Physical Declines Which Influence Driving Performance of Older Drivers2022N/AMorris Completed Projects TitleYearReport #ResearcherTraffic Safety Evaluation of Pedestrians and Bicyclists at Roundabouts in Minnesota20232023-36 WagnerCOVID-19 Impacts on Speed and Safety for Minnesota Roads and Work Zones20212021-21 Hallmark