Heading Toward the Next Commissioning Phase

Our operator GPMM, made up of Alstom and AtkinsRéalis, has its teams hard at work, bringing us closer to the next commissioning phase. Over the past few weeks, they’ve been testing the network in preparation for the upcoming fall season. 

The current testings

High-frequency circulation has begun across the entire network, and several functions have been tested, particularly those related to onboard safety. This work will continue in the coming weeks with increasingly intensive testing, during which we’ll assess the resilience and redundancy of our systems and equipment—getting closer and closer to the pace of a fully operational REM.

Next, we’ll move on to the final step before commissioning: the dress rehearsal, also called dry run. During this period, the REM will run as if it were in service, with morning and evening peak hours and slightly reduced frequencies during the day.

Please note that during the dress rehearsal, service between Brossard and Gare Centrale stations will be maintained, as this segment already completed this phase in 2023.

Service Resumption and Upcoming Interruptions

Service between Brossard and Gare Centrale stations will resume on weekdays starting August 18, from 5:30 a.m. to approximately 8:30 p.m. Weekend service will resume around mid-September, as system updates are scheduled for the weekends of August 23–24, August 30–31, and September 6–7.

The Autorité régionale de transport métropolitain and the Greater Montréal transit agencies—whom we thank for their collaboration—will provide an alternative to the REM during these weekends.

Next Commissioning Phase

As for the next commissioning phase, we are still aiming for this fall. We’ll have more details to share following the tests, toward the end of August.

We sincerely thank you for your understanding. Our operator and teams are eager to welcome you back aboard the REM and to offer new mobility options in Greater Montréal.

See you soon!