Montreal's much-anticipated REM light rail network expands significantly this weekend with the official commissioning of the Deux-Montagnes branch, offering free rides to the public before paid service begins Monday morning.
Grand Opening and Free Preview Weekend
Political leaders and dignitaries will participate in a ribbon-cutting ceremony Friday morning to mark the official launch of the new 14-station branch. The public gains access to the entire REM network, including the original five stations between Brossard and Central Station, during a free open house weekend. Regular paid service commences Monday at 5:30 a.m. from both Brossard and Deux-Montagnes stations.
Timing coincides with challenges, however, as STM bus and métro drivers plan a two-day strike Saturday and Sunday. This labor action will suspend most bus routes and all métro service on the island, complicating access to REM stations that feature limited parking availability.
New Stations and Service Details
The newly activated branch introduces 14 stations running from south to north: McGill, Édouard-Montpetit, Canora, Ville-de-Mont-Royal, Côte-de-Liesse, Montpellier, Du Ruisseau, Bois-Franc, Sunnybrooke, Pierrefonds—Roxboro, Île-Bigras, Sainte-Dorothée, Grand-Moulin and Deux-Montagnes.
Service frequency represents a significant improvement over the previous commuter train line, with trains arriving every five to seven minutes during peak periods and approximately every ten minutes during off-peak hours. The REM replaces the former Exo-operated Deux-Montagnes commuter train, which provided limited rush-hour service before its five-year transformation into the automated light rail system.
Operating Hours and Future Expansion
Initial operating hours for the Deux-Montagnes to Côte-de-Liesse segment will run from 5:30 a.m. to 9:30 p.m. to accommodate testing for the next phase. The remainder of the network between Côte-de-Liesse and Brossard will maintain extended service until approximately 1 a.m.
Future expansion continues with the Anse-à-l'Orme branch scheduled for spring 2026, adding four stations: Des Sources, Fairview-Pointe-Claire, Kirkland and Anse-à-l'Orme terminus. The airport connection to Trudeau International Airport faces delays and isn't expected until 2027.
Fare Structure and Contingency Planning
Fare integration maintains consistency with existing Montreal transit. Island travel costs match standard bus and métro fares, including free transit for residents 65 and older. Off-island commuters require different passes, as standard monthly OPUS cards won't function outside their designated zones.
Despite thorough testing, winter performance remains a consideration after previous issues with snow and ice on the Brossard branch. Officials express confidence in improved winter readiness. Should service disruptions occur, the ARTM will deploy shuttle buses to connect passengers with alternative transit options. Existing mitigation shuttles will remain operational during the initial service weeks.
As an automated system controlled remotely from a South Shore nerve center, the REM operates independently from current STM labor disputes, ensuring service continuity during the weekend strike action.
