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Developing a Measurement for Task Complexity in Flight.

Yiyuan Zheng1, Yanyu Lu, Zhen Wang

  • 1School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai, China.

Aerospace Medicine and Human Performance
|September 22, 2015
PubMed
Summary
This summary is machine-generated.

A new measurement, Task Complexity in Flight (TCIF), effectively quantifies pilot task complexity. Higher TCIF scores correlated significantly with increased pilot workload, as measured by the Bedford scale and heart rate.

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Area of Science:

  • Aviation Psychology
  • Human Factors Engineering
  • Aerospace Physiology

Background:

  • Task complexity is a critical factor influencing pilot performance and workload.
  • Standard Operating Procedures (SOPs) guide pilots during flight operations.
  • A validated metric for in-flight task complexity was previously lacking.

Purpose of the Study:

  • To develop and validate a novel measurement for task complexity during flight operations.
  • To assess the relationship between the proposed metric and established workload indicators.
  • To provide a tool for optimizing pilot training and task allocation.

Main Methods:

  • Developed the Task Complexity in Flight (TCIF) metric, integrating four complexity components: actions logic, size, information exchange, and control mode.
  • Calculated TCIF for 11 flight tasks during takeoff and landing phases using SOPs.
  • Validated TCIF against the Bedford scale and heart rate in a flight simulator study with 10 pilots.

Main Results:

  • The TCIF metric and its four components were successfully calculated for the selected flight tasks.
  • TCIF demonstrated a significant positive correlation with Bedford scale scores (R=0.851).
  • TCIF also showed strong consistency with heart rate differences (R=0.816), indicating increased workload with higher complexity.

Conclusions:

  • The Task Complexity in Flight (TCIF) metric effectively quantifies task complexity within operational flight contexts.
  • TCIF shows promise as a tool for objectively assessing pilot workload.
  • This metric can potentially inform pilot training programs and flight deck task management strategies.