Graphic of roundabout road sign A roundabout is a circular intersection designed to maximize safety, minimize delay and decrease fuel consumption. There are no traffic lights or stop signs at a roundabout.

Edward & Redwood roundabout 

As part of the City's 2021 Capital Renewal Program, Edward Street from Ward Avenue to William Street was scheduled for rehabilitation, including water main replacement from Ward Avenue to Ironwood, a new road base and surface, and the extension of the pedestrian corridor on Redwood Avenue - along with street lighting upgrades.

Engineering and Operations also reviewed the preferred intersection control for Edward Street and Redwood Avenue, which was identified in the Transportation Master Plan as a potential location for a roundabout. A suitability and feasibility check for the roundabout was completed. After further analyses and life-cycle costs calculations, a roundabout was selected as the preferred intersection control.

The Ins & Outs of Roundabouts Video Series

How to Drive Through a Roundabout

How to Walk Through a Roundabout


How to Cycle Through a Roundabout

See the construction photos from Thunder Bay's roundabout at Edward Street and Redwood Avenue:

 Construction photos


June 3, 2021 - Pre-construction

Pre-construction, looking north:

Edward & Redwood Roundabout Construction


Pre-construction, looking south:

Edward & Redwood Roundabout Construction


June 17, 2021 - Watermain construction

Watermain construction:

Edward & Redwood Roundabout Construction

July 14, 2021 - Construction Update

Construction continues July 14, 2021, from above, looking west:

Thunder Bay Roundabout construction

Construction continues July 14, 2021, looking west:

Thunder Bay Roundabout construction

Construction continues July 14, 2021, looking east:

Thunder Bay Roundabout construction


July 22, 2021 - Island Completion

 Thunder Bay Edward Street Roundabout Construction


July 26, 2021 - Roundabout Trail Paving

Thunder Bay Edward Street Roundabout Construction


July 27, 2021 - Edward Street Paving

Thunder Bay Edward Street Roundabout Construction

August 6, 2021 - It looks like a roundabout! Sleeping Giant in background.

Edward Street Roundabout aerial view August 6 2021


August 23, 2021 - Getting nearer completion, with paving continuing north of roundabout

overhead Roundabout construction view - August 26


Sept. 9, 2021 - Paving nears completion, more design elements being added

roundabout nearing completion in construction

The ins and outs of roundabouts

See below for information on how roundabouts work! 

For even more information, we recommend the resources made available by the Ontario's Ministry of Transportation (MTO), including a downloadable roundabout PDF

The roundabout at Edward & Redwood will have two sets of pedestrian crossovers, one with lights (Edward Street), and one without (Redwood Avenue). To learn more about these two types of crossovers, visit our Crossover Ready web page. 

Roundabouts are safe and easy to use. Here is a quick guide:

  1. Reduce speed and approach the roundabout

    Graphic of car driving in roundabout

  2. As you prepare to enter, make sure to yield to vehicles already in roundabout

    Graphic of car driving in roundabout

  3. Wait for space and then enter roundabout safely

    Graphic of car driving in roundabout

  4. Continue through your exit while checking for cyclists and pedestrians

    Graphic of car driving in roundabout


 Benefits of roundabouts

 Vehicle safety

 Graphic of direction sign

All vehicles travel in the same direction, never crossing paths. This reduces the severity of vehicle collisions. Slower speeds also give drivers more time to react and make decisions.

 Pedestrian safety

Graphic of pedestrian sign


A pedestrian crossover will be installed and the crossing will be shorter, reducing potential vehicle conflicts.

 Pollution reduction


Since there is a significant reduction in vehicle idling, less gas is being burned and exhausted into the atmosphere. This fits well with the Thunder Bay Net-Zero Strategy.

 Reduced fuel consumption


In addition to emissions reduction, fuel consumption is reduced.

 Speed reduction


Roundabouts have the effect of calming traffic and speed in neighbourhoods.

 Improved traffic flow

Graphic showing two vehicles driving


Roundabouts provide an increase in traffic capacity.

 Lower life-cycle costs


Operation and maintenance costs are lower compared to traffic signals.



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