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Situation awareness of operators plays a key role in the safety of a nuclear power plant. The establishment of a situation awareness assessment model (SAAM) is the foundation of an advanced HRA method. The paper firstly ascertains the relation between situation awareness and human reliability analysis and then forms an organization-committed cause-effect conception model. On the basis of the above,...
This study examined the effects of human redundancy arrangements on performance in the execution of computerized emergency operating procedures. It was found that there was significant difference in completion time but no significant differences in error rate or subjective workload between single-operator and two-operator setups. For the two-operator setup, an unbalanced workload was found. Team completion...
The quantification of human error probability (HEP) is studied and a new HEP quantification method is proposed. Firstly, the SRK framework is analyzed and it is emphasized that SRK framework is valid in describe human cognitive behavior process. The method to determine cognitive behavior mode (CBM), Hanaman decision tree, is introduced as well as the HEP intervals provided by SHARP method. Secondly,...
Nuclear power plants (NPP) are complex socio-technological systems where safety is the supreme concern for all activities. While studies of past accidents reveal that technical, human and organizational factors are major contributors to violation of safety, a generically accepted paradigm for safety assessment is still unknown. Meanwhile, reporting safety-relevant event occurred in NPP operations...
This paper presents work in progress on a project to develop a process for integrating human reliability analysis (HRA) into the design process used in nuclear power plant modernization and upgrade projects. Human factors, probabilistic risk, and human-system interface design experts were interviewed, resulting in six principles for the use of HRA in design. These principles are: (i) early implementation,...
This study examines the effectiveness of information presentation and task operation in the main control room (MCR) from the human information processing (HIP) perspective. Their influences on operator workloads and implications to staffing are also discussed. The personnel from the Lungmen Nuclear Power Plant in Taiwan were selected as the target sample. A Total of 75 valid questionnaires were analyzed...
What obligations does an engineer have to protect the public interest in the creation and use of new technologies? How can the engineer best act so as to fulfill his or her responsibilities to the public? This paper considers these questions from the point of view of social ethics, by means of case studies of engineers in the nuclear power industry. An ethical framework is presented that allows us...
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