TTC Line 4 service resumes after signal issue

A TTC subway car on Line 1 is seen in this undated photo. CITYNEWS / Nick Westoll

Posted September 3, 2025 8:29 am.

Last Updated September 3, 2025 9:58 am.

Service on the TTC’s Line 4 has resumed after being shut down for over two hours during the morning commute on Wednesday due to a signal problem.

Shuttle buses were operating during the pause in service.

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