ABSTRACT

The Tokyo Electric Power Company (TEPCO) Human Factors Group was established in July 1991. In the beginning its focus was on research to extract problems concerning human factors, and there were not many activities in direct support of the work of nuclear power plant operations and maintenance. Subsequently, we at the Human Factors Group have been engaged in practical research aimed at on-site application. Topics include team performance and field operation and are based on lessons learned from actual incidents in our nuclear power stations. We currently are developing educational programs on human factors, based on what has been learned from analyzing Hiyari-Hatto (near-miss) cases. We are applying our results and findings to safety activities in the nuclear power stations. This chapter reports on the methodology used to analyze Hiyari-Hatto cases and on case studies of safety activities in nuclear power stations.