Wishbone: So does Denmark. As soon as it snows even just a little, all Danish train and bus services go straight to hell. As far as I know, that's not the case in Norway and Sweden. I wish our transport people would talk to your transport people, and find out how it's supposed to work.
Yep. All public services operate as normal even in blistering colds. There are of course problems here and there - but it's a matter of the occassional dead car battery, not entire public transport networks starting to leer.
The only noticeable effect of the relatively extreme cold we've had this week (-20 degrees celsius mostly all over except certain coastal areas, -30 to -40 degrees inland), is that people who work outdoors (construction mainly) have been put on leave. That, and a guy froze to death after returning from a holiday in the tropics - dressed in a t-shirt and khaki pants. He was found stiff on a walkway behind a store not far away from where he lived. Evidence suggests he tried to walk home. Well, that's just darwin in practice.
Another darwinian story of the cold is how some people attempt to heat their cars. Hint: sticking a powerful radiator fan on the inside of your engine cavity is not the way to do it.