Union Station Improvements

We're Transforming Union Station!

Tripling the size of Canada’s busiest transportation hub is an enormous and sometimes messy undertaking. We’re building the infrastructure for two-way, all day transit with 15-minute service or better within the most heavily travelled Metrolinx-owned rail corridors, twice the train trips during rush hour and four times the number of train trips outside of rush hour and on weekends. To support this massive expansion, we’re also adding signalling systems and larger platforms at the station, while improving the tracks and corridors feeding into it.

We’re making these improvements in a 100-year-old building while keeping transit services moving every single day. We’re putting you first by trying to minimize service disruptions during the renovation by tackling the construction in phases.

What's Changing

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Union Station Construction Map

Union Station Construction Map

New south concourse construction may cause noise and vibrations

To increase the capacity of our south platforms, construction crews are demolishing platforms 24 to 27 to build two new, wider platforms and a new south concourse. While demolition is taking place, you may hear loud construction noise and experience frequent vibrations in the southernmost part of Union Station (Bay and York Concourses) during daytime hours.

Construction work includes:

  • Drilling the deep foundations to support the new south concourse floor.
  • Demolition of the track slab for existing platforms 24 to 27.

This work is taking place at track level and will progress from west (York Street) to the east side (Bay Street).

Construction resulting in noise and vibrations at the southernmost part of Union Station is expected to continue into spring 2023.

Once complete in the next few years two new wide platforms with canopies and two new tracks, will increase safety and capacity to serve more trains and get you where you need to go faster.

The indoor walkway on the west side of Bay Street is partially closed

The north side of Bay West Teamway (the indoor walkway on the west side of Bay Street) is closed and there is no direct access to GO Train platforms. Please plan ahead and give yourself extra time.

Accessing train platforms:

  • All platforms can be accessed from inside Union Station.
  • Platforms 4–13 and 20–21 can also be accessed from the Bay East Teamway (the indoor walkway on the east side of Bay Street).

From Union Station to Bay Street:

  • North: Use the Bay Street Promenade doors (near Sephora, just south of the TTC).
  • South: Use the doors at the south end of the Bay Concourse (just north of Scotiabank Arena).
  • The elevator in the Bay West Teamway is out of service. Alternate elevators are available in the Great Hall on the north side of the station or in the Scotiabank Arena on the south side of the station.

Pedestrians on Bay Street:

  • The sidewalk along Bay Street between Front Street and Lake Shore Boulevard West remains fully open.

The north side of Bay West Teamway (the indoor walkway on the west side of Bay Street) is expected to remain closed until spring 2023. Thank you for your patience during construction.

  • Once complete, the new pedestrian bridge will connect Union Station to 141 Bay Street, Bay East Teamway (the indoor walkway on the east side of Bay Street) and Union Station Bus Terminal.

Please be careful around construction and obey signs. Union Station is busier than normal due to multiple construction projects.

We are building a temporary stairway

At Union Station we are building a temporary stairway to get you to the retail level below the VIA Concourse.

Here's what you need to know:

      • Two sets of doors to the VIA Concourse from the south hallway connecting York, Bay and VIA Concourses are unavailable during construction. We are building temporary stairs in this area to provide access to the retail level below in the near future. Please use the remaining sets of doors on either side to enter and exit the VIA Concourse.
      • There is a blocked off area for construction at the south entrance to the VIA Concourse.
      • Please be careful around construction and walk around fenced-off areas.

New temporary stairs are expected to be complete later this fall. Once stair construction is complete, new south concourse construction will take place.

Platform 21 is now open for GO Transit service, and some platforms are closed for construction

Construction to convert platform 20/21 to a shared space for VIA Rail and GO Transit customers is complete, and GO trains are serving platform 21. Platforms 24 to 27 are closed while important construction to build the new south concourse, two new platforms and two new tracks takes place. This work requires boarding adjustments that may affect how you get to your train.

Here's what you need to know:

When travelling from Union Station:

      • Check departure boards at Union Station before you board your train. Platforms 24-27 are closed, and your regular platform may change. You can also view departure boards live on the schedule departures web page.
      • Platform 20/21 has become a shared platform for VIA Rail and GO Transit customers. Follow directional signs in the York, VIA and Bay Concourses to get to platform 20/21, and to ensure you are on the correct train.
      • If you have accessibility needs, use the elevator in the VIA Concourse to get to platform 20/21.
      • Access to platform 21 is not available through the Bay Concourse. Use the York Concourse and VIA Concourse to access platform 21. 
      • The Bicycle Station located at the walkway on the east side of York Street, near 25 York Street has closed. Bicycle Station members may park in the north bike room, located near the corner of Front Street and York Street.
      • Please be careful around construction equipment and fencing throughout Union Station until construction is complete in the next few years.

We’ve built three new stairways to make it easier and more convenient for VIA and GO Transit customers to get to and from platform 20/21. You’ll find the new stairways located:

      • At the walkway on the west side of York Street.
      • At the York Concourse near the east side of York Street.
      • At the walkway on the east side of Bay Street.

The Union Station Enhancement Project includes the design and construction of transit infrastructure and upgrades at the southernmost part of Union Station, including the addition of new tracks and the expansion of platform 24/25, a new south platform, and a new south concourse to accommodate GO rail service increases, improve customer experience, and enable the planned GO Expansion program.

Station Access

To access the Bay Concourse and other new connections:

      • Follow signs at Union Station.
      • If you are unsure, ask a station ambassador for assistance.
      • If you require accessible, barrier-free access to platforms, please use the York Concourse.

Elevator access:

      • There are elevators in the Bay Concourse for you to use to access train platforms 10/11.
      • The elevators to access the lower retail level and to get to the TTC are located at the north end of the Bay Concourse.
      • An elevator to get to the Scotiabank Arena entrance is located at the south end of the platform.
      • If you require accessible, barrier-free access to other train platforms, please use the York Concourse.
      • Signs to help you find accessible and barrier-free travel paths have been installed throughout Union Station to help you get where you need to go.

To access the TTC via the Bay Concourse:

      • Escalators and stairs are available to get to the retail level below the Bay Concourse.
      • Escalators and stairs are available to get to the retail level below the Bay Concourse.
      • Elevators are available at the north end of the Bay Concourse to get down to the retail level.
      • Signs are in place to help you get to the TTC entrance, which is located at the north end of the retail level.

 To access the Union Station Bus Terminal (USBT):

      • Follow signs in the walkway on the east side of Bay Street (Bay East Teamway) to get to the Union Station Bus Terminal.
      • To access the Union Station Bus Terminal from Bay Street, you must enter from the north end of the walkway and walk through to get to the bus terminal. The entrance to the Union Station Bus Terminal from the south side of Bay Street is closed until later this summer due to construction in the area.
      • Elevators and escalator are available to get to L2 of the bus terminal.
      • You can still enter the Union Station Bus Terminal via the main entrance on Lake Shore Boulevard., just east of Bay Street.
      • Customers coming from Union Station can get to the bus terminal by heading to the Bay Concourse and accessing the Bay Street Bridge from the Scotiabank Arena exit. The Bay Street Bridge connects Scotiabank Arena and Union Station to the second floor of the Union Station Bus Terminal. This is an accessible path.

A future commercial tower at 141 Bay Street is still under construction. For information on the Union Station Bus Terminal, click here.

We're Making Progress

We’ve finished converting platform 20/21 to a shared platform for VIA Rail and GO Transit services, and improvements include:

      • A new shared platform for VIA Rail and GO Transit customers to board and exit trains.
      • Three new stairways to make it easier and more convenient for VIA Rail and GO Transit customers to get to and from platform 20/21.
      • New customer communications systems with trip information.
      • Several new PRESTO devices at the bottom of the escalators and stairs to platform 20/21.

How You'll Benefit

Once the Union Station Enhancement Project is complete in a few years, improvements will include:

      • Two new wide platforms with canopies and two new tracks, which will increase safety and capacity to serve more trains and get you where you need to go faster. 
      • Several new vertical access points to get you to and from new platforms faster.
      • A new south concourse spanning from Bay to York Streets, with convenient open concept connections into existing Bay, VIA, and York Concourses, Union Square and Scotiabank Arena. 

photo of Bay Concourse

Stay In The Know

We’ll keep you informed about any impacts to your journey. To get updates sent directly to your inbox or phone, sign up for On the GO alerts at onthegoalerts.gotransit.com.

Click here to learn about GO Expansion plans for Union Station and the adjoining rail corridor.


Updated November 21, 2022 | Rendering subject to change