Currently in Europe there are 41 different air traffic control centres, each often having its own rules, with its own flight paths, its own corridors, its own flight quotas.
En ce moment, l’Europe possède 41 centres distincts de contrôle du trafic aérien, chacun ayant habituellement ses propres règles, ses propres trajectoires de vol, ses propres couloirs, ses propres quotas de vols.