About one year before the flight takes place until one week before real time operations.
During this phase, the Network Manager Operations Center (NMOC) helps the Air Navigation Service Providers (ANSPs) to predict what capacity they will need to provide in each of their air traffic control centres.
In addition, a routing scheme is prepared – a structure of air routes across Europe designed to balance the air traffic flows and maximise capacity.
This also includes avoiding imbalances between capacity and demand for events taking place a week or more in the future (large-scale military exercises, major sports events, etc.).
The capacity commitments of every operational stakeholder in the network are reflected in a common planning document: the Network Operations Plan (NOP).