Sources of situation awareness errors in aviation

Area of Science:

• Aviation safety research
• Human factors in aviation
• Cognitive psychology

Background:

• Effective decision-making in dynamic flight environments relies heavily on Situation Awareness (SA).
• Identifying common SA errors in aviation is crucial for improving safety protocols.

Purpose of the Study:

• To investigate the types and frequency of situational awareness errors in aviation.
• To classify SA errors based on established levels of perception, comprehension, and projection.

Main Methods:

• Analysis of reports from the Aviation Safety Reporting System (ASRS) database using the term "situational awareness".
• Classification of identified SA errors into Level 1 (perception), Level 2 (comprehension), and Level 3 (projection).

Main Results:

• Level 1 SA errors constituted the majority (76.3%), often due to unavailable or misperceived data, or failures in monitoring and memory.
• Level 2 SA errors (20.3%) were linked to inadequate or incorrect mental models and over-reliance on default information.
• Level 3 SA errors were least common (3.4%), primarily involving overprojection of current trends.

Conclusions:

• Failure to monitor available information is the most frequent cause of SA errors in aviation.
• Other significant causal factors include vigilance issues, automation complexities, and flawed mental models.
• Understanding these error types is vital for developing targeted safety interventions and training programs.