Operations along optimum trajectories are possible in defined airspace volumes at particular times. It refers to the initial implementation by various states of free routes operation in their FIR, above a certain FL, for 24 hours or during limited periods of time. These initiatives are left to local implementation decisions.
|PRO-241||Initial implementation of free routing operation||Analysis|
|B1-FRTO||Improved Operations through Optimized ATS Routing|