I went down the 417 to 416 ramp a couple of days ago.
It's a long curved two lane ramp, and there was no one to my left on the ramp.
I got down to where the two 417 lanes merge onto the 416.
At this point it's supposed to be four lanes wide.
There was a large transport truck in the right lane of the 416.
My lane and the lane to my left disappeared into pile of unplowed snow.
I was the bad driver for not anticipating this.
I did manage to slow the car, and keep it aimed in the right direction in my lane.
Much better than sideswiping an eighteen wheeler.
Watch for unforeseen circumstances out there.
Edit:
At the point where I'm beside the truck, the road is four lanes wide and there's still a lane to my right for a couple of hundred metres.