Aerospace Medical Panel Conference on Situation Awareness, 16:1-16:11. Scene-linked Symbology to Improve Situation Awareness

symbology (as found on HUDs and HMDs). We first identify various performance problems which suggest that superimposed symbology impairs pilots ' ability to maintain simultaneous awareness of instrument information and information in the forward visual scene. Results of experiments supporting an attentional account of the impairment are reported. A design solution involving the concept of "scene-linked" symbology is developed, and experiments testing the design solution are reported. An application of the scene-linking concept, in the form of a candidate HUD to support ground taxi operations for civil transport, is described. 2