This EUROCONTROL Specification provides system requirements for Medium-Term Conflict Detection (MTCD).
This is considered to comprise three distinct functions as follows:
a) The detection and notification to the controller of probable loss of the required separation between two aircraft;
b) The detection and notification to the controller of aircraft penetrating segregated or otherwise restricted airspace;
c) The detection and display to the controller of aircraft-to-aircraft encounters where, although the required separation will be achieved, each aircraft is blocking airspace that might have been used by the other, e.g. In case of pilot request for an alternative level or when resolving a conflict involving one of the aircraft.
The requirement specifies the criteria for detecting encounters between aircraft and between aircraft and airspace, for grouping encounters into interactions where they form a cohesive unit to be treated together, the notification of interactions to the relevant controllers and the capabilities of the human-machine interface.
This document describes objectives to be achieved and system requirements describing a behaviour of the system that achieves the objectives.