One very important one is the ability, when the tower is told "runway 13 is closed" with just very bare-bones information, to just accept that and start doing what needs to be done to close it down. The human tendency is to want to know more about what's happening, what needs to be done down on the ground, the condition of the aircraft and the passengers and crew, etc., but the trained-in response is to automatically trust that someone else is taking care of that, so stop thinking about it and do your job.
So the controller goes immediately from talking to the car that reported the crash, to issuing go-around orders, not knowing how bad the crash is, how long it's going to take to clear up, just trusting that "OK, I handle the planes that are still in the air, they'll handle the one on the ground".
One very important one is the ability, when the tower is told "runway 13 is closed" with just very bare-bones information, to just accept that and start doing what needs to be done to close it down. The human tendency is to want to know more about what's happening, what needs to be done down on the ground, the condition of the aircraft and the passengers and crew, etc., but the trained-in response is to automatically trust that someone else is taking care of that, so stop thinking about it and do your job.
So the controller goes immediately from talking to the car that reported the crash, to issuing go-around orders, not knowing how bad the crash is, how long it's going to take to clear up, just trusting that "OK, I handle the planes that are still in the air, they'll handle the one on the ground".