Workload and Situational Awareness
What the domain tests
Workload and situational awareness (SA) questions ask you to define, measure and manage both.
Core rules
- Workload is the mental and physical effort needed for tasks; it can be too high (overload) or too low (underload, boredom).
- Yerkes–Dodson: performance rises with arousal to an optimum, then falls; the optimum narrows for complex tasks.
- SA (Endsley): Level 1 perception, Level 2 comprehension, Level 3 projection. Losing any level degrades decisions.
- SA killers include fixation, channelised attention, distraction, complacency, expectation, fatigue and ambiguity.
- Workload management: prioritise, delegate, automate, shed non-essential tasks, and use 'aviate, navigate, communicate, monitor'.
- Measurement uses subjective scales such as NASA-TLX, performance and physiological signs.
Worked example
During a busy arrival, the pilot focuses on reprogramming the FMS and misses a frequency change. Level 1 SA is lost because attention is channelised. The fix is to stop, re-scan and delegate the FMS to the other pilot. Reasoning: the task was high-load and lower priority than navigation.
Traps
Do not equate SA with 'looking outside'. Do not assume low workload is always safe - vigilance drops. Do not confuse workload with stress. Do not treat SA as a single level.