The Grand Prix cycliste and an AC/DC concert scheduled for Saturday, September 12, and Sunday, September 13, 2026, will bring a series of traffic and construction disruptions across Greater Montreal. City officials have warned motorists and commuters that several main arteries will be partially or fully closed while detour routes are put in place to accommodate both events.
The cycling race will thread through key neighbourhoods, requiring temporary road closures and the re‑routing of public transit services. Drivers are expected to encounter reduced lane capacity and longer travel times, especially on routes that intersect the race course. Simultaneously, the AC/DC concert, set to take place at a major venue in the city, will generate its own set of restrictions, including parking limitations and increased pedestrian traffic around the stadium area.
Montreal is already contending with a number of ongoing construction projects that have altered traffic patterns in recent months. The added pressure from the weekend’s events is likely to extend delays for commuters already navigating construction‑related detours. Authorities have advised residents to allow extra time for travel, consider alternative routes, and stay informed through real‑time traffic updates.
Both the Grand Prix cycliste and the AC/DC performance are high‑profile events that attract participants and fans from across the region. While they add cultural and sporting vibrancy to the city, the concurrent timing means that residents and visitors should plan accordingly to avoid inconvenience caused by the combined road closures, construction activity, and heightened crowd movement over the two‑day period.