Document Type


Publication Date





The solution space diagram was developed to assist air traff c controllers and pilots in dealing with traff c. Up until now, it has been used to solve conf icts in the horizontal plane. Especially in the context of Air Traff c Control, it is important to also include the vertical dimension. This paper describes an approach to incorporate this vertical dimension in a two dimensional display. The altitude extended solution space diagram will be calculated taking into account the Altitude Relevance Bands of all aircraft involved. In this way, the algorithm can discard conf ict zones that can never lead to a conf ict. Based on this algorithm, a display prototype has been developed that is able to show the effect of altitude changes to the controller. This display will be used to perform an evaluation experiment to assess the benef ts of including altitude information.