So lets say you could do better air traffic control at busy airports this way by having a table projecting a 3D representation of all the traffic in the air so

So lets say you could do better air traffic control at busy airports this way by having a table projecting a 3D representation of all the traffic in the air so one could instantly see both altitude conflicts and heading conflicts. Could you reduce strain on the controllers? Could you make it effective enough so that you could fly planes closer together and get more traffic through an airport?