Question id 367 - Air Law - ATPL - Airline Transport Pilot license

Applying separation between aircraft and expediting and maintaining an orderly flow of air traffic
Preventing collisions between controlled air traffic and expediting and maintaining an orderly flow of air traffic
Preventing collisions between aircraft, between aircraft and obstacles on the manoeuvring area and expediting and maintaining an orderly flow of air traffic
Avoiding collisions between all aircraft and maintaining an orderly flow of air traffic