It's a bit more complex than this - since unlike a ground vehicle, many vehicles (especially those which are flying longer distances) can't just stop in their b

It's a bit more complex than this - since unlike a ground vehicle, many vehicles (especially those which are flying longer distances) can't just stop in their bounding box until the next one is free. And regardless of the vehicle type, none can wait indefinitely. Thus, you need confidence that the entire path - in 4D - is clear before setting out. I'm actually running an effort at Airbus' A^3 division to study this exact question - how to architect new air traffic systems to (safely!) enable extremely high density operations of drones, UAVs, autonomous air taxis, etc. And we're hiring. Project info: https://www.airport-technology.com/features/airbuss-foray-air-traffic-management-future/ https://www.airport-technology.com/features/airbuss-foray-ai... Job listings: https://www.airbus-sv.com/jobs/ https://www.airbus-sv.com/jobs/ , under Altiscope