Southdale Road West and Colonel Talbot Road Improvements

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Construction update

The intersection of Southdale Road West and Colonel Talbot Road will fully reopen as a two-lane roundabout on Monday, November 20, marking substantial completion of the Southdale and Colonel Talbot Roundabout Project, more than three weeks ahead of schedule.

The City of London began reconstructing the intersection at Southdale Road West and Colonel Talbot Road earlier this spring, to improve traffic flow and address safety challenges in one of the fastest growing parts of the city.

Reconfiguring the intersection as a roundabout and adding active transportation improvements, including separated bike paths and new pedestrian sidewalks and crossovers, will help improve comfort and safety for all road users, and better accommodate existing and future travel demand.


Roundabout basics

1. Slow down and watch for lane usage signs, then position your vehicle in the appropriate lane for entering the roundabout (hint: it’s the same lane that you would choose for a regular intersection):

  • If you’re turning left, enter from the left lane
  • If you’re turning right, enter from the right lane
  • If you’re going straight, enter from the left or right lane
  • If you’re making a U-turn, enter from the left lane

2. Choose your lane and signal

  1. If you’ll be turning left, signal left until it’s time to exit the roundabout
  2. If you’ll be turning right, signal right
  3. If you’ll be going straight no need to signal until it’s time to exit the roundabout
  4. If you’ll be making a U-turn, signal left

3. Watch and yield for pedestrians at the pedestrian cross-overs

4. Yield to traffic that’s already in the roundabout, and enter when the coast is clear

5. Stay in your lane and signal right when exiting



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Construction update

The intersection of Southdale Road West and Colonel Talbot Road will fully reopen as a two-lane roundabout on Monday, November 20, marking substantial completion of the Southdale and Colonel Talbot Roundabout Project, more than three weeks ahead of schedule.

The City of London began reconstructing the intersection at Southdale Road West and Colonel Talbot Road earlier this spring, to improve traffic flow and address safety challenges in one of the fastest growing parts of the city.

Reconfiguring the intersection as a roundabout and adding active transportation improvements, including separated bike paths and new pedestrian sidewalks and crossovers, will help improve comfort and safety for all road users, and better accommodate existing and future travel demand.


Roundabout basics

1. Slow down and watch for lane usage signs, then position your vehicle in the appropriate lane for entering the roundabout (hint: it’s the same lane that you would choose for a regular intersection):

  • If you’re turning left, enter from the left lane
  • If you’re turning right, enter from the right lane
  • If you’re going straight, enter from the left or right lane
  • If you’re making a U-turn, enter from the left lane

2. Choose your lane and signal

  1. If you’ll be turning left, signal left until it’s time to exit the roundabout
  2. If you’ll be turning right, signal right
  3. If you’ll be going straight no need to signal until it’s time to exit the roundabout
  4. If you’ll be making a U-turn, signal left

3. Watch and yield for pedestrians at the pedestrian cross-overs

4. Yield to traffic that’s already in the roundabout, and enter when the coast is clear

5. Stay in your lane and signal right when exiting



Sign up for project updates

Subscribe below if you wish to receive updates on the project.



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  • Share on Facebook Share on Twitter Share on Linkedin Email this link

    With so many families using this area on foot, with strollers, etc. how will you ensure they are safe at this intersection?

    over 1 year ago

    The proposed design includes pedestrian crossings on all four legs of the intersection. The pedestrian crossings will meet the current accessibility requirements to support safe crossing, and will be built to a “PXO Type B” standard, which includes a pedestrian push button, flashing lights, overhead signage, and paint markings on the road surface. 

    Above: A PXO "Type B" crossing

    An example of this type of crossing can be seen in Lambeth on Main Street, between South Routledge Road and Bainard Street. The design of roundabouts results in drivers slowing down through the intersection, resulting in lower speeds at the pedestrian crossing locations. 

    Studies have indicated that less serious injuries occur at roundabouts and pedestrian collision rates are lower. https://www.regionofwaterloo.ca/en/living-here/roundabouts.aspx#Pedestrian-safety-statistics 


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    Access to Raleigh Boulevard (in and out) to and from Colonel Talbot Road is already difficult even with the existing traffic control lights at Southdale West and Pack Road. While the current limits of the proposed project do not include the intersection at Raleigh and Colonel Talbot, are there any plans to improve this?

    over 1 year ago

    The Raleigh Boulevard and Colonel Talbot Road intersection is outside of the project limits that will be constructed in 2023. There is a project is planned for construction in 2024, subject to approvals, that will reconstruct Colonel Talbot Road, south of Southdale. This project will review the access to Raleigh Boulevard.

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    How many vehicles will use the roundabout daily?

    over 1 year ago

    Current traffic volume information indicates that approximately 30,000 vehicles use the Southdale Road West and Colonel Talbot Road intersection each day.

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    When is this project out for tendering?

    over 1 year ago

    The project tender is planned to start in spring of 2023. This is the period where contractors can bid on the work. After the tender closes, a contractor will be recommended for City Council approval in late spring of 2023. 

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    In-boulevard bike paths are included in this project, but what are these?

    over 1 year ago

    “In-boulevard bike path” refers to a bike path that is located behind the curb and away from the lanes of traffic, similar to the typical location of a sidewalk (so, not a painted bike lane within the roadway).  A separate sidewalk will also be provided at part of this project.

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    Will the proposed trees in the concept drawing not impinge the view for drivers approaching, entering & exiting the round-about?

    over 1 year ago

    Visibility was carefully considered during the roundabout design and trees will only be planted in areas within the central island that do not affect visibility. Low-height plants that are below eye-height may be planted around the trees.

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    I am concerned that the people who are drag racing around the area will also use this to practice their drifting. How will this be addressed?

    over 1 year ago

    One of the benefits of roundabouts is that the design can be effective for helping to reduce speeds. The curves seen in a roundabout are specifically designed to require vehicles to slow down before entering the roundabout and the central island requires vehicles to continue at a lower speed before exiting.  

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    Will Southdale be widened to four lanes to join the Bostwick construction?

    over 1 year ago

    A future construction project is planned on Southdale Road West, between Colonel Talbot Road and Bostwick Road. This project is anticipated to include a four lane cross section (two lanes in each direction) to provide lane continuity along the Southdale Road West corridor. Construction is currently scheduled for 2031, but the timing will be reviewed as part of the City of London's Mobility Master Plan study that is underway right now.

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    Will the roundabout be maintained?

    over 1 year ago

    Yes, the roundabout will be maintained as city infrastructure. If there are specific maintenance concerns at the Sunningdale Road West and Wonderland Road roundabout, the best place to report them so that they can be addressed is in the Service London portal: https://service.london.ca/ 

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    How will transit operate with this new infrastructure?

    over 1 year ago

    Transit will be able to operate on the roundabout and the current transit stops in the area will continue to operate with the roundabout. Sidewalks and in-boulevard bike paths will be provided as well through the area, so cyclists and pedestrians will have access to amenities, and improved mobility. 

Page last updated: 21 Feb 2024, 02:39 PM