How to Use a Roundabout

Roundabouts have a number of benefits over traditional intersections, including:

  • Safety: lower speeds and fewer points of conflict between vehicles. Crossing conflicts such as head on and right angle collisions are eliminated.
  • Lower speeds: unlike at a green light at an intersection, vehicles need to slow down to use a roundabout.
  • Higher capacity: high volumes of left turning vehicles is handled better by a roundabout than by a left-turn signal at a traditional intersection.
  • Fewer stops and shorter delays: yielding at the entry of a roundabout takes less time than waiting for a green light at an intersection or for a gap in traffic at a stop sign.
  • Less idling and air pollution: fewer delays reduces fuel consumption and improves air quality by reducing emissions.

How to drive in a roundabout

When approaching and travelling through a roundabout slow down.  Observe the lane signs and choose the correct entry lane.  Wait for a gap in traffic before entering the roundabout.  Remember to yield to traffic in the roundabout because drivers in the roundabout always have the right-of-way.  Do not pass other vehicles in the roundabout and give large vehicles extra space because they might use both lanes. 

Quick list of things to remember:

  • Slow down.
  • Look and plan ahead.
  • Pedestrians go first.  When entering or exiting a roundabout, yield to pedestrians at the crosswalk.
  • Look to the left, yield to all traffic in the roundabout, find a safe gap, and then go.
  • Don’t pass vehicles in a roundabout.
  • Signal.

Signs and pavement markings

Slow down; the roundabout is 300 metres ahead.

Directional guide signs show the exits and where they will take

Choose the correct lane based on the direction you want to go. Keep to the right of the Central Island.

Yield to all traffic in the roundabout, wait for an adequate gap and then enter. Traffic
inside the roundabout always has the right-of-way. In the roundabout, travel only in
a counter-clockwise direction.

Motorists are only permitted to travel in one direction (counter-clockwise) within a roundabout. A one-way sign is installed in the roundabout central island facing entering traffic to identify the direction of travel.

These signs mark the exits from the roundabout and show the road name and its destination. As you approach your exit, signal right and carefully exit the roundabout. Watch for pedestrians and cyclists crossing the roadway as you exit the roundabout.

Don’t drive beside large trucks when approaching or within the roundabout. Large trucks may need both lanes to pass through the roundabout.

Educational Materials

6th Line Roundabout