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Yoshizawa, Atsufumi*; Oba, Kyoko; Kitamura, Masaharu*
Ningen Kogaku, 54(1), p.1 - 13, 2018/02
The two approaches as the concepts to ensure safety of the complicated socio-technical systems have been proposed by Hollnagel. They are the safety concepts called "Safety-I" to reduce risks and "Safety-II" to expand successes. The resilience engineering is suggested as the methodology to achieve Safety-II. The study analyzes the recovery of the water injection of Unit 3 based on the resilience engineering, focusing on the fact that preventing further progress of the accident case in Fukushima Daiichi Nuclear Power Plant which has been evaluated for extracting risk factors. Based on those results, the study has clarified the method of learning to enhance safety which has a different view from existing accident investigation.
Kitamura, Masaharu*; Oba, Kyoko; Yoshizawa, Atsufumi*
no journal, ,
Yoshizawa, Atsufumi*; Oba, Kyoko; Kitamura, Masaharu*
no journal, ,
Oba, Kyoko; Yoshizawa, Atsufumi*; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Oba, Kyoko; Yoshizawa, Atsufumi*; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Oba, Kyoko; Yoshizawa, Atsufumi*; Kitamura, Masaharu*
no journal, ,
This study introduces the necessity of stepping up the concept from Safety-I, risk removal type of safety, to the Safety-II, which aims to enhance system flexibility and resilience. In order to achieve Safety-II, the Fukushima Daiichi Nuclear Power Plant accident was investigated by using Resilience Engineering, which is the methodology going toward Safety-II. Focusing on responding, which is one of the four cornerstones of Resilience Engineering, workers in the Fukushima Daiichi Nuclear Power Plants executed flexible ideas to prevent catastrophic damage of the accident. Those responding were created by human with strong attitude in which few investigation reports mentioned. Those approaches show the importance of the Safety-II concept and Resilience Engineering methodology.
Kitamura, Masaharu*; Oba, Kyoko; Yoshizawa, Atsufumi*
no journal, ,
A new framework of information provision and public dialogue concerning safety of nuclear facilities has been proposed in this paper. Basic ideas behind the framework are a novel concept of safety named Safety-II and a relevant emerging methodology of safety management called Resilience Engineering. The new ideas emphasize practices that contributed to positive outcomes in addition to failures and errors experienced during accident management. Implication of the new framework concerning the nuclear risk communication has been addressed through reflection of several field experiences.
Oba, Kyoko; Yoshizawa, Atsufumi*; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Yoshizawa, Atsufumi*; Oba, Kyoko; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Oba, Kyoko; Yoshizawa, Atsufumi*; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Yoshizawa, Atsufumi*; Oba, Kyoko; Kitamura, Masaharu*
no journal, ,
no abstracts in English
Kitamura, Masaharu*; Oba, Kyoko; Yoshizawa, Atsufumi*
no journal, ,
no abstracts in English
