Design and Evaluation of a Dynamic Dilemma Zone System for a High Speed Rural Intersection
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چکیده
Improving traffic safety is a priority transportation issue. A tremendous amount of resources has been invested on improving safety and efficiency at signalized intersections. Although programs such as driver education, red-light camera deployment, and operational improvements to roadway geometry have all contributed to a safer driving environment, significantly reducing traffic signalrelated crashes remains a challenging task. For example, with the rapid urban sprawl, many signals have been installed at high-speed rural intersections due to their increasing traffic volumes. Most of those intersections have posted speed limits over 50 mph, which can pose a hazardous situation for motorists when approaching a signal during its yellow phase. Drivers in such situations could be caught in a socalled dilemma zone: they can neither pass through the intersection before the light turns red, nor can they slow down comfortably at the stop line. Insufficient protection of motorists within the dilemma zone often leads to red-light running and could result in severe accidents due to the high speeds.
منابع مشابه
State Highway Administration Research Report Design and Evaluation of a Dynamic Dilemma Zone System for a High Speed Rural Intersection
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