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Technical issue stalls part of the REM

Alstom Canada found defective electronic components causing frequent delays on the REM's 30-km Deux-Montagnes branch, with interruptions occurring one in four days, data shows.

  • REM said early Thursday that trains between Deux‑Montagnes and Côte‑de‑Liesse were halted by a technical problem, but service gradually resumed shortly before 7 a.m.
  • The Deux‑Montagnes branch, inaugurated last November, includes a 30‑kilometre extension opened on Nov. 17, but the company acknowledges service has fallen below expectations with frequent delays.
  • Two trains were stopped on Wednesday, and Édouard‑Monpetit station was closed due to elevator problems; the line serves 14 stations.
  • Reacting to disruptions, Quebec Transport Minister Jonatan Julien says he expects improvement as Alstom states repairs should be finished in the coming days.
  • Radio‑Canada found that interruptions lasting 20 minutes or more occur roughly one day out of every four on the Deux‑Montagnes branch, while Alstom Canada says defective electronic components cause many disruptions.
Insights by Ground AI

13 Articles

Lean Left

The numerous breakdowns of the Réseau express métropolitain (REM) force adjustments in Montreal public transport. Bus lines will be modified and discussions are underway to compensate short-term users, La Presse learned.

·Montreal, Canada
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Lean Left

The numerous slowdowns and service stops of the Metropolitan Express Network (REM) in recent weeks are due to several different issues.

·Montreal, Canada
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Journal Métro broke the news in on Thursday, January 29, 2026.
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