Review of research on quantitative assessment of pilots' situation awareness

Situation awareness is one of the key competencies required by pilots to fly aircraft, and quantitative assessment of pilots' situation awareness is the focus of many studies.To clarify past research on pilots' situation awareness, six traditional measurement approaches are firstly summarized in this paper, including freeze-probe technique, real-time probe technique, post-trial self-rating technique, observer scoring technique, performance evaluation and physiological index evaluation.Secondly, a mathematical modeling approach is introduced to measure pilots' situation awareness, which is more refined and highly predictive.Finally, a detailed summary of the main measures used in past studies of pilots' situation awareness is summarized, and its development direction is discussed to provide some reference for subsequent research in this area.