Toronto, Canada – Ontario Highway 401 Highway 401, also known as the Macdonald–Cartier Freeway, runs through Toronto and is widely recognized as one of the busiest highways in the world. Key Facts: • 📍 Located in: Ontario, Canada • 🛣️ Length: About 828 km (from Windsor to the Quebec border) • 🚗 Through Toronto: Some sections carry over 400,000 vehicles per day • 🔁 In certain areas, it expands to 18 lanes, making it one of the widest highways in North America The 401 is the backbone of transp

The mighty Ontario Highway 401 isn’t just a road — it’s the backbone of Ontario and one of the busiest highways in the entire world. Stretching over 800 kilometres across Ontario, Highway 401 connects major cities like Windsor, London, Toronto, Kingston, and all the way to the Quebec border. 📍 In Toronto, it expands to 18 lanes in some sections — making it one of the widest highways on the planet. 🚗 On its busiest stretch, it carries over 400,000 vehicles per day. It fuels our economy, support