OperationHorizon
European Supplement
urn:aero:ses:eurocontrol:airm:1.0.0:ConceptualModel:Subjects:AirTrafficOperations:TrafficSynchronization:OperationHorizon
A geometrical distance, flight time or set of points related to a Significant Point and used to define the geographical scope of an ATM operation. The point may, for example, be an Aerodrome Reference Point.
Source:
SESAR,