+x Tim Dawson - 10/5/2020 8:36:45 AMThank you for the helpful video about what happens when two aircraft crash.No, we have not (yet) made any changes to the way this works.It is possible that in the future we would decide an aircraft is on the ground if its groundspeed was nearly zero AND its altitude reported below a certain height AGL, and ignore it for the purposes of collision detection. Those two together would be quite a safe way of "proving" it. If they're very wrong, collision detection isn't going to work anyway.
+x pilot-byom - 10/5/2020 10:09:08 AM+x Tim Dawson - 10/5/2020 8:36:45 AMThank you for the helpful video about what happens when two aircraft crash.No, we have not (yet) made any changes to the way this works.It is possible that in the future we would decide an aircraft is on the ground if its groundspeed was nearly zero AND its altitude reported below a certain height AGL, and ignore it for the purposes of collision detection. Those two together would be quite a safe way of "proving" it. If they're very wrong, collision detection isn't going to work anyway.Giving recent experience, I'd vote not to spend too much effort into 'how to delete signals from the collision warning". One of the most prominent issues this virus times is certain pilots not looking out and entering the runway while someone is on short final. It is not very wise to omit the aircraft at the holding point on the ground at zero speed from collision warning for the approaching aircraft ...