Development of a Queue Warning System Utilizing ATM Infrastructure System Development and Field TestingStatus: CompleteReport Date: 06/16/2017 Summary: Two prototypes for an active traffic management (ATM) queue warning system were developed and deployed on two Twin Cities freeways. At one location, the system produced a 22 percent decrease in crashes per vehicle miles traveled and a 54 percent decrease in near-crashes. While the queue warning system represents a cost-effective option for improving highway safety, a longer trial period of two to three years is needed to make sure that the system provides sustainable benefits. Final Deliverables: Development of a Queue Warning System Utilizing ATM Infrastructure System Development and Field Testing (Report #2017-20) ATM Queue Warning Systems Can Reduce Freeway Crashes (Research Summary) Related Materials: Related Research: Project Personnel: Principal Investigator: John Hourdos Co-Principal Investigator: Henry Liu Technical Liaison: Brian Kary Project Coordinator: Debra Fick Panel Members: Cory Johnson - Transportation System Management and Operations James Kranig - Traffic Management - RTMC Jesse Larson - Metro District Jim McCarthy - FHWA John Hourdos - Federal Highway Administration Nelson Cruz - Ralph Adair - Metro District
