Hello, 
If I were to mark the access as private, would that restrict other users, such as delivery drivers, from going down the road?
I am running into issues with the routing engine taking school buses down private driveways for re-routing after a wrong turn. This is potentially dangerous since private driveways do not always allow room for a bus to turn around. However, I do not want to make changes that will restrict other users when it does not need to. 

Thank you for your assistance! 