The Quebec government announced Tuesday a major overhaul of Highway 10 between Brossard and Carignan on Montreal’s South Shore, adding dedicated lanes for buses and high‑occupancy vehicles.

The plan calls for constructing reserved lanes for public‑transit buses and carpool traffic, alongside upgrades to aging bridges, pavement and signage along the corridor.

Officials say the changes are intended to speed up travel to the REM light‑rail system, giving South Shore commuters a faster, more reliable link to the regional rapid‑transit network.

Highway 10 serves as a primary commuter route linking the South Shore to downtown Montreal, handling a high volume of daily traffic. By separating buses and carpools from general traffic, the province hopes to reduce congestion and encourage greater use of public transportation.

The project is part of a broader effort to modernize transportation infrastructure across Quebec, aligning road improvements with transit initiatives such as the REM, which connects multiple suburbs to the city centre.

No specific timeline or budget figures were released in the announcement, but the government indicated that design work will proceed promptly, with construction expected to follow after environmental assessments and public consultations.

Stakeholders, including municipal leaders on the South Shore, have expressed support for measures that could improve transit access and reduce single‑occupancy vehicle trips, though details on lane configuration and implementation remain to be clarified.

The overhaul aims to create a more integrated transportation network, linking road and rail options for commuters traveling between Brossard, Carignan and the broader Montreal area.