DEPLOYMENT CRITERIA CONSIDERATIONS:

A Temporary Roadway Hazard System should be considered for deployment as part of a project’s temporary traffic-control plan when a temporary situation may cause a hazardous driving condition such as:

  • Curve warnings
  • Snow plows ahead
  • Flash flooding
  • Weather conditions (fog, ice, etc.)
  • Falling/fallen rock
  • Slope movements

ANTICIPATED SYSTEM EFFECTS:

When properly designed and deployed for a specific project, a Temporary Roadway Hazard System should alert traffic to a hazardous condition on the roadway ahead and advise an appropriate action such as stopping, slowing or diverting traffic. The system should also notify construction staff of the situation so corrective actions may begin.

ADDITIONAL RESOURCES:

Deployment criteria and anticipated effects are suggestions that were provided by the MnDOT 2007/2008 report “Minnesota Intelligent Work Zone Toolbox.”