All of them basically. Some are outright wrong and direct you to old terminals.
Others have not been changed since new road construction has finished or new routes have been opened by DOT. Some directions from GBO to other terminals are a good example of this.
Most directions are vague and lack mile markers, exit numbers, or distance estimates from turn to turn. There was one set of directions that told you to turn at a store that has long since been gone.
A driver at our terminal was sent from AUG to NGA one night and central told him they had no directions on file. When asked what might be the best legal route to take central said "idunnoknow".
Best source of directions I have found have been asking other drivers. Or make sure you have a good drivers atlas in the truck with you.