In September 2026, commuters and cyclists across Greater Montreal encountered a series of road and pathway closures linked to two concurrent developments: ongoing construction projects and the Grand Prix cycliste. The combined effect of these activities has produced a noticeable slowdown in traffic flow and forced many cyclists to seek alternative routes.
The Grand Prix cycliste, a major cycling competition, required the temporary shutdown of several streets and dedicated bike lanes to accommodate the race course. At the same time, a number of municipal and private construction sites continued their work on infrastructure upgrades, further reducing the number of open thoroughfares. Both sets of closures have been identified as the primary sources of the current disruptions.
Motorists reported encountering detours and reduced lane availability, while cyclists noted that usual pathways were blocked or rerouted. The overlapping nature of the construction zones and the race route means that many parts of the metropolitan area experience simultaneous restrictions, amplifying the impact on daily travel.
City officials have acknowledged the situation and indicated that they are monitoring traffic patterns and adjusting signage to help drivers and cyclists navigate the temporary changes. Coordination between the race organizers and construction managers aims to minimize inconvenience, though the scale of the overlapping projects limits the extent of possible mitigation.
The blockages are expected to remain in place for the duration of the construction activities and the Grand Prix cycliste event. Once the race concludes and the construction phases are completed, normal traffic conditions are anticipated to return to the Greater Montreal area.