The Réseau express métropolitain (REM), an ambitious project to build an electric train that will link various parts of the greater Montreal area, including the Pierre Elliot Trudeau International Airport, will include 67 km of tracks, have 27 stations and connect with the Montreal metro. It requires substantial adjustments to the tunnel under the Mount Royal.

The short, 1.8-km section of open railway that runs through TMR, one of the most densely populated areas along the network, provides a privileged access to the REM. Three feeder lines serving Deux-Montagnes, the West Island and the airport, as well as a Montréal-East rail connection will converge there, before heading toward downtown Montréal. It is expected that more than 550 trains will pass each day, every two minutes during rush hours and every five minutes outside of those periods, 20 hours per day, 7 days per week.

The REM construction is not a Town project. It is managed by the Caisse de dépôt et placement du Québec through its CDPQ Infra subsidiary. Since 2017, the Mount Royal Town Council has been advocating for the interests of residents in this matter. One of the main gains achieved is the development of a new public space between the two bridges in Mount Royal's Town Centre, above the tracks, when the Cornwall Bridge, which belongs to the REM, is rebuilt.

The Cornwall Bridge demolition and reconstruction work began in May 2020. It will end during the fall of 2021. The tunnel under Mount Royal should reopen in 2023.

Learn more about the construction work and the REM in general:

To find out about your transport options during the work: