Intelligent dilemma zone protection system at high-speed intersections : research summary.

1643745PDFTech ReportMD-17-SHA/UM/3-32SP409B4KDilemma zoneHighway safetyIntersectionsRed interval (Traffic signal cycle)Rural highwaysSensorsTraffic signal timingTraffic speedUnited StatesMarylandMaryland. State Highway Administration. Research DivisionMaryland. State Highway Administration. Research DivisionUS Transportation CollectionDrivers\u2019 actions in an intersection\u2019s dilemma zone \u2013 the area where the decision to stop at a yellow light or continue through it is not clear-cut \u2013 can lead to side-angle and rear-end crashes. In Maryland, researchers developed an intelligent dilemma zone protection system (DZPS) that is reducing these crashes by anticipating drivers\u2019 decisions and responding. The objective of this project was to design, deploy, and evaluate the DZPS at two high-speed intersections in Maryland