Understanding Risks and Opportunities for Ramp Metering Control in a Mixed-Autonomy FutureStatus: CompleteReport Date: 07/22/2025 Summary: While automated vehicles (AVs) have the potential for improving safety and mobility, their transition into widespread use may be accompanied by inefficiencies throughout the transportation landscape. This project examined the effects of AV features such as adaptive cruise control on traffic flow and ramp meter operations. Results of simulations showed that traffic flow performance decreased with vehicles operating adaptive cruise control. But MnDOT could counter some of the negative impacts of AV features by adjusting the ramp metering algorithms. Final Deliverables: Understanding risks and opportunities for ramp metering control in a mixed-autonomy future (Report #2025-31) Impacts of Automated Vehicle Feature Integration (Research Summary) Related Materials: Impacts of Automated Vehicle Feature Integration (Blog Post) Related Research: Project Personnel: Principal Investigator: Raphael Stern Technical Liaison: Garrett Schreiner Project Coordinator: David Glyer Panel Members: Brian Kary - Transportation System Management and Operations Christoph Brostrom - Metro District Cory Johnson - Transportation System Management and Operations Douglas Lau - MNIT Transportation
