When driving a roundabout, slow down, look left, and travel to your exit.
Driving a Double-Lane Roundabout
If you are in a roundabout with multiple lanes, follow the same guidelines. Choose the lane you need to travel in based on the exit you want to take. Never change lanes in a roundabout. Towing vehicles can legally occupy both lanes. Don't drive beside them. Those in the roundabout have the right-of-way from the entering traffic.
Trucks and Large Vehicles
The inside section of the roundabout with patterned concrete is called the truck apron. It is designed for large vehicles to drive on. It is specially designed with a flat slope and low height for low-clearance vehicles and trailers.
Montana law requires vehicles approaching a double-lane roundabout to yield to towing vehicles also approaching the roundabout to allow the towing vehicle to use both lanes inside the roundabout.
Bikes and Pedestrians
Vehicles are required to yield to pedestrians. All pedestrians must cross at the designated crosswalks and should never cross through the center island. Cyclists may take the lane or dismount and walk.
For more information about driving a roundabout, download and share the Roundabout Reminders Reference Card.