This is especially important in managing the North Atlantic airspace, where there is no radar coverage at all. Planes request clearance and track changes via da

This is especially important in managing the North Atlantic airspace, where there is no radar coverage at all. Planes request clearance and track changes via data messages. There is a cool video detailing the process - and the software used to manage it - here: https://youtu.be/EJTjwW5ZYas?t=805 https://youtu.be/EJTjwW5ZYas?t=805