Ah, you're one of those people who think we shouldn't have nice things. Got it.
reply(And no, the market often does not provide.)
I guess at least when they are given away for free or severely underpriced to the user.
replyRight, the externalities of those road systems aren't really paid for properly, by anyone.
replyBut that's hard to do, because for many people/uses, they have to use those roads to get done what they need to do. The alternatives (like high speed rail) just largely don't exist in the US, or are painfully sub-par.