Yeah, I thought that too. I had visions of Ice bergs crashing into it! Trying to figure out how many lanes it would be. Also constructing huge rest areas. It would be amazing though lol! How about a huge underground subway system circling the globe!
I’d imagine that would be a run ride for the first couple hundred miles, but after awhile it would get VERY boring! lol
There would probably be serious problems with drivers falling asleep at the wheel. As you said, they would have to find a way to build huge ‘rest areas’ of some sort. Maybe a large space built off the road with refueling, auto repair/garage, restaurants, lodging, and maybe some kind of entertainment. Basically a massive truck stop type place. There could be smaller ones every 50-100 miles that are like your basic convenience store, and the larger ones like I mentioned above maybe every 500-700 miles or so.
If done right, it would be pretty cool, and profitable too; for whichever businesses that ran the services within the travel stops. It could be open for bidding on multi-year contracts for who wants to do it. I’m sure there would be MANY other issues that would have to be worked out that I have no clue about, but things like this are fun to muse over. lol