Redtail, perhaps a wish in the wishlist forum indicating a modification to the "friendly collisions" option such that friendly collisions are ignored when a plane is on the ground, or perhaps a 30 second delay to planes that recently spawned, disabling collisions in that time period, would be a good idea.
This would allow players to pay extra attention while flying in scenarios when CMs choose to enable friendly collisions, while removing the need for an ATC in the tower coordinating player spawns.