A three-vehicle collision involving a GO Transit bus caused significant gridlock on the Gardiner Expressway during the early morning rush on Monday, April 6, 2026. The incident, which occurred in the heart of Toronto, sent one person to the hospital and forced the closure of multiple lanes, impacting thousands of commuters traveling from the Durham Region into the city’s downtown core.
Emergency Response at Strachan Avenue
According to Toronto Police, the crash took place in the westbound lanes of the Gardiner Expressway near Strachan Avenue just after 6:00 a.m. The collision involved the GO bus and two passenger vehicles. While the scene was chaotic, emergency responders arrived quickly to assess the situation.
Police confirmed that the driver of one of the passenger cars sustained injuries and was transported to a local hospital for treatment. Fortunately, despite the impact, there were no reported injuries among the passengers traveling on the GO bus. This particular stretch of the highway is a critical funnel for traffic entering and exiting the city, making any disruption during the 6:00 a.m. hour particularly impactful for early-morning workers.
Impact on Durham Region Commuters
For residents of Oshawa, Whitby, Ajax, and Pickering, the crash resulted in a “domino effect” of delays. The Gardiner Expressway is the final leg of the journey for many Durham commuters using the Highway 401 and Don Valley Parkway corridors. With two lanes blocked for over two hours, traffic backed up significantly, adding substantial travel time for those heading to work.
GO Transit acted quickly to mitigate the disruption for its riders. A second bus was dispatched to the scene to collect the stranded passengers and complete the route. However, the secondary delay caused by the transfer and the surrounding traffic meant that many regional travelers arrived at their destinations well behind schedule.
Recovery and Reopening
Toronto Police Operations provided real-time updates via social media throughout the morning. Following an investigation of the scene and the safe removal of the damaged vehicles, police announced that all lanes had been successfully reopened by 8:40 a.m.
While the physical debris was cleared relatively quickly, the residual “rubbernecking” and backlogs continued to affect the flow of traffic through the mid-morning. Commuters were advised to exercise caution and remain patient as the volume of vehicles slowly returned to normal levels. This incident serves as a stark reminder of how a single collision on the city’s main expressway can disrupt the interconnected transit ecosystem of the Greater Toronto and Hamilton Area.
