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In Oregon and Colorado, downhill speed warning systems decreased truck crashes up to 13 percent at problem sites.
Date Posted
04/25/2008
Identifier
2008-B00513
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Downhill Speed Warning Systems
Several years of safety data collected at multiple sites show that road geometry warning systems can eliminate rollover crashes and the impacts are sustainable. Downhill speed warning systems have proven effective at mitigating risk to large trucks in areas with steep terrain. At problem sites in Oregon and Colorado these systems have decreased truck crashes by up to 13 percent.
Goal Areas
Deployment Locations