The Federal Highway Administration (FHWA) partnered with the American Association of State Highway and Transportation Officials (AASHTO) to encourage the implementation of work zone ITS through an AASHTO Technology Implementation Group (TIG) project. This effort led to a workshop in September 2005, in St. Louis, MO. Mike Fontaine, Virginia Transportation Research Council, presented a review of available studies on work zone ITS. The review encompassed work zone ITS deployments in 17 states. The studies were focused on smart work zones that provided functions such as travel time, delay, alternate route information, and speed advisories.
The costs to deploy work zone ITS vary greatly depending on several key factors:
- Purchase verse lease the system
- Temporary verse permanent components of the project (e.g., equipment used in a work zone is later deployed as permanent equipment on the same or different project)
- Size and function of the system
The costs based on the deployments in the study ranged from $100,000 to $2.5 million with the majority of systems costing in the $150,000 to $500,000 range. The estimated benefit-cost ratio ranged from 2:1 to 42:1 depending upon conditions and assumptions.
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The majority of work zone ITS cost between $150,000 and $500,000.