401

You are still in Toronto, when Ontario highway 401 cuts the city. But when you see it, then it means you are way up north in the City. Interesting fact is that the part of Highway 401 that passes through Toronto is the busiest highway in the world, and one of the widest. The posted speed limit is 100 km/h (62 mph) throughout its length. 

So now you can imagine what the traffic and traffic jams look like there.

We do not have many four lane roads in Estonia, there is a strip to south to Tartu and east to Narva, but I think that is all.