Human reliability is one of the important determinants for the system safety [1]. Nuclear Energy
Agency reported that approximately half of events reported by foreign nuclear industry were related with
inappropriate human actions [2]. The human error problems can be viewed in two ways: the person approach
and the system approach. Other terms to represent each approach are active failures and latent conditions.
Active failures are unsafe acts committed by people who are in direct contact with systems whereas latent
conditions are the inevitable ‘resident pathogens’ within the system. To identify what kinds of non-technical
skills were needed to cope with emergency conditions, a method to evaluate preparedness of task management in
emergency conditions based on monitoring patterns and verbal protocol analysis was presented. Five
characteristics were suggested to evaluate non-technical skills: communication completion, supportiveness of
situation awareness building, thoroughness, latent procedural mistake resistibility, and latent procedural
violation resistibility. Case study was done by analyzing emergency training of 9 different real operation teams
in the reference plant. The result showed that the 9 teams had their own emergency task management skills
which resulted in good and bad performances.
Issue Date
2012-08-31
Language
ENG
Citation
First International Symposium Socially and Technically Symbiotic Systems, pp.51-1 - 51-8