I am no longer with Disney Transport. The carts travel on the main roads with the buses, as well as on some side paths. Please make sure to stop in both directions if a bus is loading/unloading at a stop (just as you would for a school bus) If you get a bus behind you, it's a nice thing to pull over to let the bus pass. (Although, inevitably, we have to stop just after we pass you anyway... lol)