Montana Department of Transportation

roundabout at Kalispell Bypass project

Roundabouts

What is a roundabout?

Roundabouts are circular intersections that incorporate a new design that reduces traffic accidents, traffic delays and traffic speeds. Roundabouts are installed at selected state roadway intersections to improve safety and mobility.

Driving in roundabouts is easy and follows many of the same principles of other traffic intersections. Roundabouts do not use stop signs but often use yield signs to notify drivers to yield to approaching vehicles already in the roundabout.

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Roundabout diagram

Locations

If you're driving in Montana, you'll spot roundabouts in Billings, Bozeman, Great Falls, Helena, Kalispell and Missoula.

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