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union station

The expanded Union Subway Station Second Platform has added a much-needed second platform and improved the flow of passenger traffic through the area.

Union Station is the busiest transportation facility in Canada with 65 million passengers passing through it every year. In order to improve the flow of TTC, GO Transit and tourist traffic, the TTC in partnership with Waterfront Toronto, expanded the central subway platform to include a second platform. The second subway platform provides additional passenger capacity, improve safety, make the station fully accessible and streamline the operational efficiency of Union Subway Station. The expansion allows the subway station to accommodate the increased number of passengers who will someday live and work across the waterfront.


In order to reduce overcrowding and improve passenger circulation, the second subway platform and concourse expansion includes a single TTC fare-paid area and pedestrian by-pass routes.


Other project components included improving underground access from the station through a new underground PATH connection along York Street from Union Station to Wellington Street, new access to Toronto’s waterfront, and a new elevator and ramp system connecting the TTC area to the railway station.


The improvements to Union Station Subway Platforms and Concourse were completed in July 2015 in time for the Pan/Parapan Am Games.


project details


  • Construction of a new subway platform on the south side of existing subway tracks to separate eastbound and westbound passenger flow
  • Expansion of the concourse level
  • New elevator and ramp system connecting the subway area and the railway station
  • New collector booths and fare lines
  • New east automatic entrance
  • Improved access to the underground PATH system

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project status

Approved Budget:

quick facts

Union Station: the busiest passenger transportation facility in Canada, servicing up to 65 million passengers annually


Project completion: 2015


Location: Corner of Front Street and Bay Street


Cost: $137.5 million for second subway extension


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