In an effort to improve safety for road work zone crews and motorists, the Oregon Department of Transportation will be using portable traffic signals, called robo flaggers, in some work zones at several locations this summer.

The automated flagger assistance device, often referred to as a robo flagger, is a small traffic signal with a crossing arm that drops down to block traffic when the lane is closed. These traffic control units are more visible than human flaggers and motorists tend to see them from a greater distance away.

The robo flaggers are typically controlled by staff located a safe distance from moving traffic. Highway construction operations can be extremely hazardous, especially when motorists aren’t paying attention or are under the influence of drugs or alcohol.
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