Service on Montreal's Réseau express métropolitain (REM) was severely disrupted on Tuesday, November 18, 2025, after a truck collided with a rail line overpass. The incident occurred just three days after the highly anticipated public opening of the network's Deux-Montagnes extension.
Immediate Service Suspension and Response
The REM operator announced the disruption just after 7 a.m., citing that a truck had struck a viaduct in close proximity to the Bois-Franc station. Following an initial system-wide interruption, service was specifically suspended on the segment between Bois-Franc and Côte-de-Liesse stations.
To mitigate the impact on commuters, authorities promptly organized a replacement bus service. Shuttle buses were deployed to run between the two affected stations, ensuring passengers could continue their journeys despite the rail closure.
A Rocky Start for the New Extension
This service failure marks an early setback for the expanded REM network. The Deux-Montagnes extension officially launched on Friday and was opened to the public for free travel over the weekend. Monday, November 17, was its first day of paid operations, making Tuesday's disruption particularly untimely for the new service.
A History of Operational Challenges
This is not the first operational hiccup for the REM system. Since its initial debut in 2023, the automated light rail network has experienced several service failures. These incidents have been especially pronounced during the winter months, raising concerns about its reliability in harsh Canadian weather conditions.
The collision and subsequent suspension underscore the ongoing challenges faced by the new transit system as it integrates into Montreal's public transportation infrastructure.
