OttawaOttawa’s transit agency says a ventilation problem is stopping trains from running east of Tremblay station on Tuesday morning. Replacement buses are in place.Trains are not running east of Tremblay, R1 buses brought inCBC News · Posted: Oct 28, 2025 8:05 AM EDT | Last Updated: 1 hour agoListen to this articleEstimated 1 minuteR1 replacement buses run instead of O-Trains Sept. 20, 2021 due to a temporary closure. (Francis Ferland/CBC)Ottawa’s transit agency says a ventilation problem is stopping trains from running east of Tremblay station on Tuesday morning. Replacement buses are in place.OC Transpo said around 7:45 a.m. it brought in R1 buses to serve Line 1 stops between its east end at Blair station and Hurdman station.As usual, these buses skip Cyrville station. A shuttle connects Cyrville to St-Laurent station.Trains are running between Tremblay and Tunney’s Pasture stations.OC Transpo did not elaborate on the problem.
East end of Line 1 closed by ventilation problem
