In previous research, investigators developed and deployed two warning systems, including MN-QWARN, which was installed on a segment of Interstate 94 (I-94) with a historically high crash rate. This system targeted shockwaves or initial stages of congestion based on the understanding that not all congestion events create high risks for crashes. Certain traffic conditions can be unsafe even if they don’t result in queueing. A brief evaluation of MN-QWARN, which has been operating since 2016, suggested that the warning system reduced crashes by 22%. Seeing the opportunity to leverage the historical traffic data on that highway segment, MnDOT was interested in learning more about the performance of MN-QWARN and the transferability of the queue warning system.
Content Notes:
This Technical Summary pertains to Report 2023-05, “Evaluation and Refinement of Minnesota Queue Warning Systems,” published March 2023. More information is available at mdl.mndot.gov.
In previous research, investigators developed and deployed two warning systems, including MN-QWARN, which was installed on a segment of Interstate 94 ...
MnDOT has already deployed an extensive infrastructure for Active Traffic Management (ATM) on I-35W and I-94 with plans to expand on other segments of...
Active Traffic Management (ATM) strategies are being deployed in major cities worldwide to deal with pervasive systemcongestion and safety concerns. W...
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