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The REM is the largest public transit project in the Greater Montréal area in the past 50 years. These are the most frequently asked questions.

Community, works and schedule

Throughout the construction period, information meetings and other types of events will be organized to keep citizens informed about the progress of the work. Don't hesitate to contact us or consult the "Construction schedule" page for more information.

The work involves replacing the train with an automated light rail transit system. The tracks and power supply will be changed over 30 km, 12 enclosed stations will be built and 3 connections will be added to the McGill and Édouard-Montpetit stations and the Mascouche line. Existing infrastructure such as the tunnel under Mount Royal and the railway bridges will also be renovated and modernized.

Service interruption sequence on the Deux-Montagnes and Mascouche lines: 

  • From March 30, 2020: Closure of the Central station-Du Ruisseau segment (the Deux-Montagnes line stops at Bois-Franc, the Mascouche line stops at Ahuntsic) 
  • From December 31, 2020: Complete closure of the Du Ruisseau segment in Deux-Montagnes 

To learn more about the work and alternate transportation options, consult our specific page: Deux-Montagnes and Mascouche lines

The transitional network is managed by the Autorité régionale de transport métropolitain (ARTM) working closely with transit companies. In the summer of 2018, a committee of users of the Deux-Montagnes and Mascouche lines was created by the Trajectoire Québec organization to hear users’ concerns and maintain constructive dialogue.

In parallel, together with the ARTM we have organized an ideas forum bringing together 125 public transit users, mobility experts and major employers. The aim is to identify ideas that complement the public transit measures and help users save time in their daily commute. We intend to work with downtown employers on initiatives to be launched shortly.

Permanent noise barriers are installed where significant impacts have been identified by sound modelling, according to the criteria of the Ministère des Transports’ road noise policy. Noise barriers will mitigate these significant impacts. In addition, a noise monitoring program for the REM in operation will verify the performance of the noise barriers. 

Learn more

The commissioning of the REM depends on multiple tests being carried out on all branches. They enable technical problems to be identified and resolved, cars and infrastructure to be checked, and network automation to be tested. Commissioning of the airport segment is scheduled for 2027, in collaboration with Aéroports de Montréal, which is responsible for building the YUL-Montréal-Trudeau airport station. To see the commissioning schedule, click here.

Connexions and access to stations

Yes. The REM will be connected to three Montréal métro lines: the orange line via Bonaventure station (Central Station), the blue line via Édouard-Montpetit station and the green line via McGill station.

There are no plans to build a pedestrian bridge over Highway 40 as part of the REM project. The various municipalities are responsible for urban development around the stations.  

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