If you regularly ride on Line 1 on weeknights, you should be aware there will be a partial four-night closure next week.
According to the TTC, Line 1 between St Clair West and Union stations will be closed at 11 pm from Monday, March 4 through Thursday, March 7.
The early closures will enable the TTC to expedite the modernization of its signalling system.
There will be shuttle buses running and Wheel-Trans service will be available for those requiring extra assistance.
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Dupont and Museum stations will close at 11 pm but all other stations will remain open for fare sales and access to surface routes.
Similar early closings, which will allow the TTC to extend Automatic Train Control (ATC) operations south of Dupont Station, are scheduled throughout the year. The next one is planned between March 11 to 14 between Finch and Lawrence stations.
According to the TTC, when the ATC is fully installed on Line 1, it will provide a more modern and reliable signal system that will help the TTC improve capacity by allowing for increased trips on the line.
While the TTC does most subway maintenance at the conclusion of service each night, it continues to require weekend and early evening closures to complete critical infrastructure and ATC upgrades, as well as work on the Eglinton Crosstown.