University of Minnesota Driven to Discover
U of MNUniversity of Minnesota
Center for Transportation Studies

Researchers team up to develop new techniques

Freeway entrance and exit ramps are often the chief contributors to difficult-to-solve traffic bottlenecks. Even the most basic entrance/exit ‘weaving sections’ involve complex vehicle interactions that are difficult for engineers to track as vehicles change lanes, cross paths with other vehicles, and merge with through traffic to enter or exit an expressway. Without the ability to track this movement, engineers cannot collect or accurately compute traffic data—such as driver behavior and real-time capacity estimates—and consequently, cannot accurately determine how to improve traffic flow in these areas.

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