Development of Information System for Post-Earthquake Plant Evaluation and Evacuation Support

Abstract eng:
The Japan Nuclear Energy Safety Organization (JNES) evaluated the seismic risk for representative plants, using seismic PSA technology, and demonstrated that the radiation risk of the public depends largely on the possibility of evacuation of residents in the vicinity of nuclear installation. JNES is now developing the information system PEES (the information system for post-earthquake Plant Evaluation and Evacuation Support). PEES has capabilities to estimate both post-earthquake plant state and estimate of offsite damages, (e.g. possible damages of bridges and roads in the vicinity of installations) and to identify evacuation routes considering release behavior of radioactive materials (FP), location of shelters and arrangements of vehicles for evacuation, in order to comprehend the risk of resident evacuation. The results of the simulation can be used for local emergency preparedness plans and transportation plans. In emergency, a similar accident scenario is searched from the results of simulations performed in normal state. After that, successive reports are issued by revising the first report using actual data from the site.

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