Perhaps not no weather--water intrusion/management will still matter.

Also as a practical matter, a lot of systems stop running to discourage traveling; the underground may be safe but you still have to travel on the surface to your final destination

Subways work well, but I have a hard time seeing people travel long distances such as between metro areas knowing their entire journey would be underground.

Maybe people would get used to it. I don’t know.

I was only thinking of freight really since it doesn’t matter.

There are two areas where such tunnels make sense. You are either going underwater or you are going through mountain. That is you need to it to go through an obstacle.

For rest, over ground or above ground is preferred.

Is this a problem for rail? Afaik they just put some special thing in the front of the train to clean up the snow