And before you say, "but tolls are so obnoxious!" you should know that, once again, private industry solves that problem via either pre-paid subscription models or RFID drive through tolls. In Dubai, the "toll booths" are just small structures that cross over the freeway. They scan a sticker in your car window when you drive underneath at 80 miles per hour. Easy.
Yes, tollbooths are shitty only when they're statist, because there's no incentive to make them not stupid and not slow. When you have
voluntary customers, the last thing you want is to ruin their trip with delais.