CPC Controller Workload Management & Human Factors 1 — Questions and Answers
Question 1: What is 'situational awareness' in air traffic control, and what is the primary threat to it?
- Knowledge of weather only; threat is equipment failure
- An accurate mental model of all relevant traffic, terrain, and conditions; primary threat is cognitive overload or distraction (Correct answer)
- Ability to read radar scope; threat is technical malfunctions
- Knowing all aircraft callsigns; threat is miscommunication
Correct answer: An accurate mental model of all relevant traffic, terrain, and conditions; primary threat is cognitive overload or distraction
Situational awareness is the controller's mental model of aircraft positions, intentions, and potential conflicts; it degrades rapidly under high workload, distraction, or interruption.
Question 2: What is the 'startle response' in human factors, and why is it relevant to controllers?
- A predictable, automatic reaction to a sudden stimulus that can temporarily impair performance (Correct answer)
- An intentional alarm sound on ATC equipment
- A technique for alerting pilots to traffic conflicts
- A backup communications protocol
Correct answer: A predictable, automatic reaction to a sudden stimulus that can temporarily impair performance
The startle response is an involuntary physiological reaction to unexpected events that can briefly impair cognitive performance, which is relevant when unexpected alerts or emergencies arise.
Question 3: What does 'task saturation' mean in ATC operations?
- When all frequencies are simultaneously occupied
- When the volume of tasks exceeds the controller's ability to manage them safely (Correct answer)
- When radar screens display more than 30 targets
- When weather reduces visibility to zero
Correct answer: When the volume of tasks exceeds the controller's ability to manage them safely
Task saturation occurs when demand on a controller's cognitive and physical resources exceeds capacity, increasing the risk of errors, omissions, and loss of situational awareness.
Question 4: What is the recommended action when a controller feels overwhelmed and unable to safely manage traffic?
- Continue working and catch up when traffic reduces
- Immediately call a supervisor and request sector assistance or a relief controller (Correct answer)
- Issue holds to all aircraft and stop accepting new traffic
- Transfer all aircraft to the adjacent sector without coordination
Correct answer: Immediately call a supervisor and request sector assistance or a relief controller
Controllers must notify supervisors immediately when workload exceeds safe management capacity; supervisors can provide assistance, split sectors, or arrange relief.
Question 5: What is 'expectation bias' and how can it cause ATC errors?
- Expecting all aircraft to follow identical routes
- The tendency to perceive what is expected rather than what is actually present, leading to missed readback errors or incorrect position assumptions (Correct answer)
- Expecting busy traffic periods at predictable times
- Bias toward approving all flight plan amendments
Correct answer: The tendency to perceive what is expected rather than what is actually present, leading to missed readback errors or incorrect position assumptions
Expectation bias causes controllers to 'hear' correct readbacks or 'see' expected aircraft positions even when deviations have occurred, leading to undetected errors.
Question 6: The '3-to-1 rule' in CRM (Crew Resource Management) adapted for ATC involves:
- Three controllers per sector during peak hours
- Prioritizing the three most critical aircraft when task saturated (Correct answer)
- Delegating to a minimum of three assistants
- A checklist with at least three verification steps
Correct answer: Prioritizing the three most critical aircraft when task saturated
When task saturated, controllers are trained to prioritize the three aircraft posing the greatest immediate risk or requiring the most urgent attention to maintain safety.
CPC Controller Workload Management & Human Factors 1
What is 'situational awareness' in air traffic control, and what is the primary threat to it?