One of the biggest beneficiaries of this is all the bus traffic headed to and from Magic Kingdom and Contemporary and Wilderness Lodge. They'll no longer have to slow down to pass thru the Magic Kingdom parking toll both area on their way. And on their return, they'll no longer have to head across Seven Seas Drive passing the TTC and Poly and the traffic congestion that comes along there with pedestrian crosswalks and lights. They'll just continue straight down World Drive, over the flyover and continue on to their destination. It will take out a whole lot of congestion on Seven Seas Drive, especially in peak Magic Kingdom traffic times moving traffic more quickly and smoothly.
Guests heading to any of the MK area resorts will also no longer have to pass thru the parking toll booths and end up the wrong lane needing to cross 6 lanes of cars to get back to World Drive to head to one of the MK resorts. And again, when they're heading out they will have the option to just stay on World Drive, over the flyover and out instead of going across Seven Seas Drive.