N環球 
Ottawa O-Train Line 1 faces service adjustments Sept 26–Oct 2
Planned maintenance including rail welding, catenary work and vegetation management means R1 replacement buses on some segments September 27 and September 29–October 1.
Why it matters
A week of planned engineering work will intermittently replace trains with buses on parts of Line 1 — riders should check the travel planner before heading out.
Full story
OC Transpo will adjust O-Train Line 1 service from Saturday, September 26 through Friday, October 2, 2026, for planned maintenance. The work includes special-constable training between Lees and Hurdman (9:30 a.m. to noon), rail welding at uOttawa, overhead catenary wire work at Tremblay, and vegetation management between Bayview and Hurdman.
R1 replacement buses will serve selected segments on September 27 and from September 29 to October 1, with trains continuing to run on the rest of the line. The city says the adjustments are needed to keep the line in a state of good repair.
Riders are advised to check OC Transpo's travel planner and station signage for the latest routing, and to allow extra travel time during the work windows.
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