The back‑to‑back disruptions have frustrated riders and renewed scrutiny of the TTC's overnight maintenance operations.

Add Yahoo as a preferred source to see more of our stories on Google. Toronto police are investigating after a TTC streetcar derailed following a collision with a car. (Michael Wilson/CBC - image ...

Another hydraulic oil spill shut down a large stretch of subway Line 2 on Friday morning, just days after a similar incident earlier this week, prompting the TTC to suspend its work car fleet until ...