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How to Use Roundabouts

A roundabout is a circular intersection designed for improved traffic flow traveling at slower speeds. Traffic travels in a counterclockwise direction around a center island.

In the following diagrams, traffic in outside lanes (blue lanes with white arrows) must yield to traffic in the inside lanes (yellow lanes with black arrows). Traffic entering the roundabout (grey lanes) must yield to traffic in the roundabout, both inside and outside lanes).

How to Use Roundabouts brochure PDF (1 MB)

Entering the Roundabout

 

Image displaying how to properly user a roundabout

  • Reduce your speed when approaching the roundabout.
  • To enter the roundabout safely, wait for a space in the traffic.
  • Use your right turn signal prior to exiting.
  • Drivers entering the roundabout must yield to vehicles already in the roundabout.

Using the left lane to enter and exit:

  • Drivers planning to travel at least half way around the roundabout (second exit) should approach the roundabout using the left lane.
  • Enter the roundabout using the left lane only when it is safe.
  • Exit using the left lane.

Using the right lane to enter and exit:

  • Drivers entering the roundabout from the right lane must do so when it is safe and stay in the right lane while in the roundabout.
  • They must exit using the right lane.

Driving In the Roundabout

Image displaying how to properly user a roundabout

Image displaying how to properly user a roundabout

  • The driver on the right must yield to the driver on the left.
  • The driver using the left lane must activate the right signal when preparing to exit.
  • Use caution when leaving the roundabout and crossing through the right (outside) lane.
  • Do not change lanes in the roundabout.

Exiting the Roundabout

Image displaying how to properly user a roundabout

When you intend to exit at the first available exit, do the following:

  • Approach the roundabout using the right lane.
  • Use your right turn signal when in the roundabout until you have exited the roundabout.
  • Scan for pedestrians and cyclists at the crosswalks at the entrance and exits of the roundabout.
  • Yield to traffic in the roundabout.
  • Exit the roundabout using the right lane.

When you intend to leave the second exit or farther exits, do the following:

  • Activate your left turn signal to communicate that you do not plan to use the first exit.
  • If there are two lanes, approach the roundabout using the left lane.
  • Scan for pedestrians and cyclists at the crosswalks at the entrance and exits of the roundabout.
  • Exit the roundabout using the left lane.

When you exit from the left lane, do the following:

  • Use your right turn signal after you pass the exit that is the last one before the exit you will use.
  • Check for traffic in the right lane that may be continuing around the roundabout.
  • Look ahead for pedestrians at the crosswalk where you will be exiting.
  • Exit the roundabout using the left lane if two lanes.
  • If you cannot stop or exit safely, stay in your lane and travel around the roundabout again.

Others using the Roundabout

Large Vehicles

Large vehicles may need to use more than one lane when approaching, within and exiting the roundabout. Give large vehicles plenty of room to navigate within the roundabout.

Pedestrians

Never cross to the Central Island of the roundabout. The Splitter Islands will allow you to cross one direction of traffic at a time. Pedestrians should always wait for gaps in the traffic and only cross when it is safe to do so.

Cyclists

Experienced cyclists may ride through the roundabout as if you were any other vehicle. Before entering the roundabout, carefully move into the centre of the appropriate travel lane. You should stay in the middle of the lane until you are clear of the roundabout. Less experienced cyclists should dismount and walk their bicycles, following the same rules that apply to pedestrians.

Emergency Vehicles

If you have not yet entered the roundabout, pull over to the right if possible and allow the emergency vehicle to pass you. If you are in the roundabout, take your intended exit and proceed beyond the Splitter Island before pulling over to the right to allow the emergency vehicle to pass you. Never stop inside the roundabout.

What do these signs mean?

Image displaying a yield sign

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

Image displaying a slow down sign

Slow down, the roundabout is 300m ahead.


Image displaying a do not drive beside large trucks sign

Do not drive beside large trucks when approaching or within the roundabout. Large trucks may need both lanes to pass through the roundabout.

Image displaying a choose the correct lane sign
Choose the correct lane based on which direction you want to go. Keep to the right of the Central Island.

Image displaying a directional guide sign
Directional guide signs show the exits and where they will take you.

Quick Tips

  • Slow down as you approach the roundabout.
  • Traffic in the roundabout has the right-of-way.
  • While in the roundabout, traffic to the left has the right-of-way.
  • Choose the correct entry lane.
  • Entering vehicles must always yield to vehicles in the roundabout.
  • Watch for pedestrians crossing the roadway when approaching or exiting a roundabout.
  • Give large vehicles extra space to manoeuver.
  • Avoid passing other vehicles in the roundabout.
  • Do not stop or move over for emergency vehicles when you are in a roundabout.
  • Do not stop, pass large vehicles or change lanes within the roundabout.
  • Use your right turn signal when exiting the roundabout.
  • If you miss your exit, continue around the roundabout again and exit.

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