Hiroki NAGAI

Accident during the evacuation behavior analysis of Kashiwazaki-Kariwa Nuclear Power Plant and feasibility study of early congestion completed by bottleneck measures

Kazushi SANO,Hiroaki NISHIUCHI

Fukushima Nuclear Power Plant was affected by the damage caused by the great earthquake, many of the residents for an emergency declaration has been issued has become a situation in which the evacuation. There is a need to develop a new evacuation plan for if you are subject to this is equivalent accident and Fukushima nuclear power plant in Kashiwazaki-Kariwa nuclear power plant has occurred. Therefore the traffic situation in the event of a disaster at the Kashiwazaki-Kariwa nuclear power plant is estimated by using a microscopic traffic simulator "Paramics". Evacuation target area range from the Kashiwazaki-Kariwa nuclear power plant with a radius of 30km. OD is obtained by classifying the initial voluntary evacuation, private cars evacuation bus evacuation. Is the time zone allocated to a gradual evacuation using these OD table, to perform the simulation. OD of PAZ district evacuation and UPZ voluntary evacuation is to generate the UPZ evacuation OD at the time of the completion of 90% evacuation in order to carry out a phased evacuation. Result 90% evacuation OD of simulation evacuation in UPZ district is started immediately after this becomes a 5 hours 2 minutes. And time evacuation of all district took to complete became the 15 hours 22 minutes. In addition, the simulation results from the location where the vehicle is concentrated to discover using Paramics tools, and extracts bottleneck therefrom. And I went the extra lane increase and smart IC bottlenecks as measures to the bottle neck. Were performed using the aggregate data of the questionnaire the simulation at the time of nuclear disaster. As a result from conduct the extraction of specific bottlenecks of congestion point, we have succeeded in shortening of up to 50 minutes of evacuation time by the introduction of measures

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