A tactical navigation support tool was designed to effectively deal with conflict situations in the vertical plane, while preserving travel freedom as much as possible. Based on Ecological Interface Design principles, the Vertical Separation Assistance Display is developed as an extension to the existing Vertical Situation Display. Functional information is presented via overlays that show pilots how their vertical maneuvering possibilities are constrained by ownship performance, and by limits imposed by surrounding traffic. A questionnaire-based evaluation shows that the ecological overlays considerably improved pilot traffic awareness in vertical conflict situations.
Heylen, F. M.,
van Dam, S.,
& van Paassen, M.
(2009). Design of an Ecological Vertical Separation Assistance Cockpit Display. 2009 International Symposium on Aviation Psychology, 367-372.