Sometimes, the biggest runway is blocked by another plane and so it is useless to click on the green radar to accept a plane that would need that blocked runway. To avoid clicking in vain, the green radar could display the runway(s) of the waiting guest plane(s) like the blue radar displays the time until the next arrival of a plane. It could possibly even allow to accept the second before accepting the first since the second might be able to land on a smaller runway.
So instead of this:
it could look like this:
to give the additional information.
As another bonus, it could be allowed to click on the left or the right half of the radar to select which of the two to allow.
So instead of this:
As another bonus, it could be allowed to click on the left or the right half of the radar to select which of the two to allow.