Montreal's Réseau express métropolitain (REM) officially opened its new West Island branch on Monday, May 18 [6].

The expansion aims to provide essential light-rail service to the historically underserved West Island region. By improving regional transit connectivity, the project seeks to reduce reliance on cars and connect suburban commuters to the city center more efficiently.

The project adds 14 kilometres [1] of track to the network. This extension includes four new stations: Des Sources, Fairview-Pointe-Claire, Kirkland, and Anse-à-l’Orme [3].

Before the official launch, the REM organization hosted a free preview weekend on May 15-16 [5]. The event allowed residents to test the new infrastructure and familiarize themselves with the route before paid service began.

Public interest in the new line was significant. More than 170,000 people rode the REM during that first preview weekend of the West Island branch [4].

The rollout comes as part of a broader effort to modernize Montreal's transit landscape. The four new stations [2] are designed to serve as hubs for the surrounding communities, integrating local transit with the high-speed light-rail system.

More than 170,000 people rode the REM during that first preview weekend

The successful launch and high initial ridership suggest a strong latent demand for mass transit in Montreal's West Island. By bridging a historical gap in rail infrastructure, the REM extension may shift commuting patterns and reduce traffic congestion on major arteries connecting the suburbs to the urban core.