A New Section of REM Montréal Inaugurated

Why It Matters

The new REM segment strengthens sustainable mobility in Montreal’s West Island, easing traffic congestion and cutting greenhouse‑gas emissions while expanding high‑frequency public transit coverage. It also positions the city to capture future demand from the upcoming airport connection, enhancing regional economic competitiveness.

Key Takeaways

• 14 km extension adds four stations in West Island municipalities
• Daily REM ridership averages 78,000 trips, peaking at 104,000
• Alstom provides 212 Metropolis cars and GoA4 automation
• Final 2027 airport link will complete 67 km, 23‑station network

Pulse Analysis

The latest REM expansion underscores Montreal’s commitment to a climate‑friendly transit ecosystem. By extending 14 kilometres into the West Island, the project links previously underserved suburbs directly to the city’s high‑capacity rail core, offering frequent, driver‑less service that competes with car travel. Integration with STM and exo bus routes creates a seamless multimodal network, encouraging commuters to shift away from congested highways and supporting Quebec’s broader sustainable‑mobility agenda.

Ridership data reveal a steady climb since the Deux‑Montagnes section opened in late 2025, now averaging 78,000 weekday journeys and reaching peaks of 104,000 trips. This growth validates the demand for automated, high‑frequency rail and justifies the substantial investment in Alstom’s technology suite, including 212 Metropolis cars, the Urbalis GoA4 signalling system, and onboard Wi‑Fi. The system’s 99 %+ availability rate demonstrates operational reliability, a critical factor for attracting new riders and reducing the region’s carbon footprint.

Looking ahead, the 2027 airport connection will be a game‑changer, extending the REM to 67 kilometres and 23 stations, and directly linking Montréal‑Trudeau International Airport. The link promises to funnel airport passengers and airport‑related employment into the public‑transport network, boosting economic activity on the island’s western fringe. As CDPQ Infra and the Pulsar operator move toward testing, the project signals a broader trend of integrating rail infrastructure with major transport hubs, positioning Montreal as a forward‑looking, transit‑centric metropolis.