Montreal's public transit system is facing a significant disruption this weekend, as the entire Réseau express métropolitain (REM) network will be out of service. The shutdown, announced for the weekend of December 27-28, 2025, will affect all lines and stations, leaving commuters and holiday travelers to find alternative routes.
Scope of the Weekend Shutdown
The service suspension is comprehensive, impacting the entire REM network. This includes the recently opened Deux-Montagnes line, which serves Laval and other key areas, as highlighted by the recent aerial photo of a train departing from Île Bigras. The outage is scheduled for the entire weekend, beginning on the morning of Saturday, December 27, and continuing through Sunday, December 28, 2025. Transit authorities have not provided a precise hour-for-hour restoration timeline, urging users to plan for a full two-day closure.
Reasons and Impact on Commuters
While the official announcement did not specify the exact cause for the full-network shutdown, such extensive closures are typically required for critical system-wide maintenance, software updates, or infrastructure repairs that cannot be performed during limited overnight hours. The timing during the holiday period, specifically the post-Christmas weekend, is likely to affect both local residents and visitors navigating the city during a traditionally busy travel season.
Commuters who rely on the REM to connect with other modes of transit, such as the Metro or bus lines, will need to allow for considerable extra travel time. The shutdown coincides with other major winter events across Canada, including freezing rain expected in Montreal, multi-vehicle collisions causing highway closures like on Highway 401 in Whitby, and various winter storm warnings, which could compound travel difficulties.
Alternative Travel Options and Planning
Travelers are strongly advised to consult the websites of Société de transport de Montréal (STM) and Exo for alternative bus and Metro services that may offer parallel routes. Ridesharing, taxis, and personal vehicles will see increased demand, so planning ahead is crucial. This REM service suspension serves as a reminder of the vulnerabilities in modern transit infrastructure and the importance of contingency planning for both operators and the public.
The closure follows a pattern of infrastructure challenges reported across the country this season, from hospital diversions in B.C. to significant weather events affecting road safety. For Montrealers, this weekend will be a test of patience and adaptability as the city's newest and most technologically advanced rail system goes offline for essential work.
