This video is showing a winter driving on 1st Feb 2016 on Hokkaido Expressway. It was in a heavy snow situation. I couldn’t see the car just in front of me.
Below, from Iwamizawa city to Mikasa city on Hokkaido Expressway.
There are two lane road, but nobody couldn’t drive side by side. It was really dangerous.
You would not recognize the width of the road and both side of the road are going to be a snowdrift, so that you should drive in the center.
I quit to drive on the highway and got off the lane after 30 minutes. In the winter, there are many traffic accidents on a highway.