From spatial conflict probes to spatial/temporal conflict probes: Why and how

To contribute to a reduction in the overall Near Mid Air Collision encounter probability, the intended function of conflict probe displays is to provide increased awareness of potential future conflicts, resulting in timely preventive maneuvers. The conflict probe displays developed in earlier research show (a cross-section of) the spatial volume where loss of separation is predicted to occur. To ensure sufficient maneuvering time in any conflict geometry, a spatial separation threshold has to be based on the acceptable risk in a worst-case conflict geometry. The addition of a temporal separation criterion to the spatial separation criterion can be used to better approximate an equal risk for all possible conflict geometries while decreasing false alarms due to operationally safe encounters.