Signal upgrades on TTC Line 1 this weekend

This weekend, March 10-11, TTC crews will continue installation of the Automatic Train Control (ATC) signal system. In order to complete this work, the portion of Line 1 Yonge-University between St Clair West and Union stations will be closed.

Throughout the closure, express shuttle buses will run between Spadina and St Clair West stations only. The TTC encourages customers to use the following alternatives:
- Line 2 Bloor-Danforth
- Yonge portion of Line 1
- 6 Bay bus
- East-west streetcars on College, Dundas, Queen and King Sts. to connect with the Yonge portion of Line 1

Wheel-Trans service will be available between St Clair West and Union Stations for customers requiring an accessible connection. To request service, customers can speak with TTC staff at any location throughout the closure.

St Clair West, Spadina, St George and Union stations will be open for fare sales and connections to surface vehicles. All other stations on this part of Line 1 will be closed.

When ATC is fully implemented in 2020, it will provide a more modern and reliable signal system that will allow for an increase in the number of trains operating on Line 1.

While the TTC does most subway maintenance at the conclusion of service each night, it continues to require weekend closures to complete ATC and state-of-good-repair work. One weekend of work during a closure is equivalent to about five weeks of nightly work.

This is the second of three such closures on this portion of Line 1 in 2018. The TTC is committed to keeping our customers informed about subway closures and alternative routes. Customer service ambassadors will be available to answer questions throughout the weekend. For the most up-to-date information, subscribe to @TTCNotices on Twitter or sign up for eAlerts at

The next scheduled subway closures are:
- March 17-18 - Line 3 Scarborough for TTC track work
- March 30-April 1 - Line 1 Yonge-University - Finch West to Wilson for ATC signal upgrades

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