Flight Safety Assessment Based on a Modified Human Reliability Quantification Method
Table 1
Modified PIFs for flight.
PIF
Description
Ground support
The level of support and resources provided by the ground controllers for the task or work being performed. Very efficient/efficient/inefficient/deficient Improved/not significant/reduced
Crew workload management
The level of crew workload to maximize efficacy. Supportive/adequate/tolerable/inappropriate Improved/not significant/reduced
Crew training and experience
This factor involves the applicability, recency, and repetition of training as well as the crew’s prior experience. High experience/limited experience/inadequate Improved/not significant/reduced
Procedure format consistency and verification quality
This factor mainly refers to the consistency and effectiveness of the procedure formats as well as how the ground verification quality influences human activities. Appropriate/acceptable/inappropriate Improved/not significant/reduced
Procedure quantity
The number of simultaneous goals that need to be completed in a given period. Fewer than capacity/matching current capacity/more than capacity Not significant/not significant/reduced
Time stress
The time allowed by the system and the actual time required to complete the task. Adequate/temporarily inadequate/continuously inadequate Improved/not significant/reduced
Adequacy of the man-machine interface
The information availability and identifiability in the display interface. Supportive/adequate/tolerable/inappropriate Improved/not significant/reduced
Adequacy of organization
The quality level of organizational factors, such as policies, planning, management, and quality assurance, that affect individual safety consciousness. Very efficient/efficient/inefficient/deficient Improved/not significant/reduced
Working conditions
This factor generally refers to the physical working environment, including glare, large vibrations, alarms, uncomfortable temperatures, and external interference events. Advantageous/compatible/incompatible Improved/not significant/reduced
