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Sequential Barricade Warning Light System
AASHTO  >  AASHTO Technology Implementation Group  >  Focus Technologies  >  Sequential Barricade Warning Light System
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Sequential Barricade Warning Light System

What is a Sequential Barricade Warning Light System

The Sequential Barricade Warning Light System is an award-winning, simple system composed of sequential lighting to improve safety by alerting drivers of a work zone ahead and helping to guide them through one of the least safe transition points in a roadway work zone: the merge taper. It is a low-cost, high-benefit solution that is easy to understand and deploy.

Benefits

Benefits offered by these systems include improvements to visibility, safety, and traffic flow as well as being easy to employ and maintain in service.

  • Visibility: Enhances the visibility of merge taper in the approach to a work zone
    • Awareness: Enhances driver awareness of an approaching work zone
  • Safety: Strong potential to reduce work zone crashes
    • Enhanced safety at merge tapers
    • Demonstrated reduction in driver speed
    • Enhanced safety of night work zones for drivers and workers
    • Standard referenced in 2009 MUTCD (Section 6F.63)
    • NCHRP 350 compliant
  • Maximizes Traffic Flow: Promotes smooth lane merge to reduce back-ups and enhance movement of traffic through the work zone
  • Low Cost: $100-$110 per light unit, only slightly more costly than conventional warning lights, and with a high return on investment
  • Easy Installation
    • Lightweight product
    • Simple deployment
    • Product improvements have eliminated cumbersome wire connections
  • Alternative Lane Lighting System to Type C lights
  • Minimal Power Demand: LED lights draw little power. Studies have shown battery life in excess of 1,000 hours.
  • Visible Innovation: Engenders public support, recognition and appreciation for an easy to understand safety improvement

Contacts – Lead States Team

Daniel Smith
Traffic Management and Operations Engineer
Missouri Department of Transportation
573-526-4329
Daniel.Smith@modot.mo.gov

Kristie McCain
Engineering Manager
Traffic Engineering Division
Oklahoma Department of Transportation
405-521-2864
KMcCain@ODOT.ORG

Marc Thornsberry
Safety & Mobility Engineer
FHWA Missouri Division Office
573-638-2616
Marc.Thornsberry@dot.gov

Troy Pinkerton
Missouri Department of Transportation
573-526-0123
Troy.Pinkerton@modot.mo.gov

Earl Newman
City of Springfield (Retired)
417-343-9580
EarlNewman@aol.com

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