What does OACC generate every 12 hours?

OACC, or the Oceanic Area Control Centre, is responsible for managing air traffic in oceanic regions and generating organized track systems for aircraft. Every 12 hours, it produces a system of organized tracks that help to optimize the flow of air traffic over long distances, particularly over oceans where radar coverage may be limited. This system provides pilots with predetermined routes that minimize the risk of congestion and enhances safety by allowing for more efficient navigation of aircraft.

These organized tracks are crucial as they group flights in a manner that takes into account aircraft performance, weather conditions, and other operational factors. By utilizing these organized tracks, air traffic controllers can effectively manage the high volume of transoceanic flights and ensure a smooth flow of air traffic.

Other options, such as traffic collision reports, weather advisories, or flight departure schedules, do not reflect the primary focus or regular output of the OACC. While these may be generated in different contexts or by other entities within the air traffic management system, they are not the specific output generated by OACC every 12 hours.