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Crash Prevention & Safety > Work Zone Warning



In work zone areas, dynamic message signs are most effective at night and when alerting drivers of the presence of workers.(June 3, 2017)

In work zone areas, dynamic message signs are most effective at night and when alerting drivers of the presence of workers.(June 3, 2017)

In Smart Zone work zones, 71 percent of local resident survey respondents found variable speed limit signs useful.(January 28, 2015)

Field testing in the UK estimates a 10:1 benefit-cost ratio of a VMS over-height vehicle warning system compared to conventional physical beam systems.(September/October 2014)

Augmented speed enforcement system in work zone significantly reduced the number of vehicles traveling in excess of 65 mph(01/01/2013)

Field data collected over the last two decades show variable speed limit (VSL) systems can reduce crash potential by 8 to 30 percent. (03/01/2010)

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