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FHWA national study finds intersection conflict warning systems reduce total crashes by 27 percent for two-lane at two-lane intersections

Methodology Geometric, traffic, and crash data were obtained for fourlegged, rural, two-way stop-controlled intersections with ICWS installations in Minnesota, Missouri, and North Carolina. Each…
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Date Posted
03/28/2017

Sequential Dynamic Curve Warning System reduces the number of vehicles exceeding the speed limit by 10 mph or more by 27.8 percent

Methodology12 treatment sites and 24 control sites in Iowa, Missouri, Texas, Washington, and Wisconsin were studied. The system was installed at each site during the summer of 2012. The installed…
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Date Posted
02/09/2016