Réseau express métropolitain

Réseau express métropolitain
A REM train at Brossard station
Overview
OwnerCDPQ Infra
LocaleGreater Montreal, Quebec
Transit typeLight metro
Number of lines1 (3 branches)
Number of stations19 (6 under construction, 2 planned)
Daily ridership190,000 (projected)
Websiterem.info/en
Operation
Began operation31 July 2023 (2023-07-31)
Operator(s)Pulsar, formerly Groupe PMM (AtkinsRéalis and Alstom)
CharacterElevated, underground, and at-grade
Number of vehicles212 Alstom Metropolis Saint-Laurent
Train length4 cars
2 cars off peak
Technical
System length
  • 50 km (31 mi)
  • 67 km (42 mi) (final phase)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
ElectrificationOverhead line1,500 V DC
Average speed51 km/h (32 mph)
Top speed100 km/h (62 mph)
System map

  in operation   future
Saint-Eustache
Maintenance Centre
Deux-Montagnes
Grand-Moulin
Zone C
Zone B
Sainte-Dorothée
Île-Bigras
Zone B
Zone A
Pierrefonds-Roxboro
Anse-à-l'Orme Depot
Sunnybrooke
(Opens 2026)
Anse-à-l'Orme
Kirkland
(Opens 2027)
Fairview–Pointe-Claire
YUL–Aéroport-
Montréal–Trudeau
Des Sources
Marie-Curie
Bois-Franc
Du Ruisseau
Montpellier
Côte-de-Liesse
Ville-de-Mont-Royal
Canora
Édouard-Montpetit
McGill
Gare
Centrale
Griffintown–
Bernard-Landry
Île-des-Soeurs
Zone A
Zone B
Panama
Du Quartier
Brossard
Brossard Depot

All stations are accessible

The Réseau express métropolitain (REM, French: [ʁezo ekspʁɛs metʁɔpɔlitɛ̃], lit.'Metropolitan Express Network') is a light metro rapid transit system in Greater Montreal, Quebec, Canada. As of November 2025, it consists of nineteen stations spanning the 50 kilometres (31 mi) of its A1 and A4 branches, connecting Downtown Montreal with the suburb of Brossard and the northwestern Montreal suburbs. The A3 branch to the West Island will open in the second quarter of 2026, and the A2 branch to the Montréal–Trudeau International Airport will open in 2027. A portion of the route was taken over from the Exo commuter rail Deux-Montagnes line and has been converted to light metro standards.

The 67-kilometre (42 mi) driverless metro system is projected to cost CA$8.34 billion. It is independent of, but connects to and complements, the existing Montreal Metro operated by the STM, as well as the Exo commuter rail, and is fully fare-integrated with ARTM's system. Trains on the network are fully automated and driverless, and the stations are completely enclosed and climate controlled, featuring platform screen doors.

The line was built by CDPQ Infra, a subsidiary of the Caisse de dépôt et placement du Québec, an institutional investor that manages various public and para-public pension plans and insurance programs in Quebec. The first section of the REM between the Brossard on the South Shore and Central Station in Downtown Montreal opened on 31 July 2023. The system was formally inaugurated on 14 November 2025 in a ceremony attended by Prime Minister Mark Carney, Premier of Quebec François Legault and Mayor of Montreal Soraya Martinez Ferrada. The second section of the REM opened on 17 November 2025, extending the line to the north through the Mont Royal Tunnel and to the northwest to Deux-Montagnes.