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Creating a Detailed Timeline

Publication date October 4, 2018
Sector Natural Disasters and Coastal Areas
Region name Tohoku(Koriyama City, Fukushima Prefecture)

Adaptation activity

In 2016, the ‘Koriyama City Timeline’ (Disaster Mitigation Action Plan) was created to mitigate disasters caused by typhoons and severe weather fronts. This action plan incorporates approximately 30 disaster-mitigation procedures, and was relatively rudimentary, in that the division of roles of between different organizations was not clearly delineated.

The Koriyama City Timeline (Revised Version) Review Board met three times in 2017 to create a more comprehensive plan (Fig. 1). In the revised schedule, the disaster-mitigation procedures were divided into 332 items, and the roles and responsibilities of relevant local authority departments and external organizations were clarified; disaster response measures such as prompt and safe evacuation guidance and prompt creation of evacuation centers were stipulated (Fig. 2). Previously, only local government and the Fukushima Office of Rivers and National Highways tasked with disaster management, but in the revised version, police and fire departments were also included, and the number of organizations connected to the plan greatly expanded. In addition, because the workshop format brought together local government and stakeholders from other organizations, it was possible to have face-to-face communication between people directly involved in disaster management and ancillary staff in fields such as education and welfare.

Outputs / Expected benefits

Establishment of a detailed emergency action plan that summarizes time-sensitive steps to be taken by administrative agencies will lead to a safe and efficient evacuation process in the event of flooding. Between October 22 and 23, 2017, when the extremely powerful Typhoon No. 21 passed through Fukushima Prefecture, the revised emergency plan was used to ensure proper flood control.

郡山市タイムライン(詳細版)検討会
Fig. 1. Review Meeting
(Source: Fukushima Office of Rivers and National Highways, Ministry of Land, Infrastructure, Transport and Tourism, "Koriyama City Emergency Plan (Revised Version) Workshop based on a Strategy for Raising Awareness of Water-related Disaster Prevention”)
(左)簡易版タイムライン、(右)詳細版タイムラインの比較
Fig. 2 Comparison of initial and revised emergency plans
(Source: Kitakami River Management, Fukushima Office of Rivers National Highways, Ministry of Land, Infrastructure, Transport and Tourism, "Implementation and Validation of Koriyama City Revised Emergency Plan during Typhoon No. 21")
Sources and Related Information
Fukushima Office of Rivers and National Highways, Ministry of Land, Infrastructure, Transport and Tourism, "Koriyama City Emergency Plan (Revised Version) Workshop based on a Strategy for Raising Awareness of Water-related Disaster Prevention”
http://www.thr.mlit.go.jp/Bumon/J77101/homepage/antenna/kawatopics/2017011101kasen.pdf
Kitakami River Management, Fukushima Office of Rivers National Highways, Ministry of Land, Infrastructure, Transport and Tourism, "Implementation and Validation of Koriyama City Revised Emergency Plan during Typhoon No. 21"
http://www.thr.mlit.go.jp/bumon/b00097/k00360/happyoukai/H30/list%201/1-7.pdf
Ministry of Land, Infrastructure, Transport and Tourism Home Page Timeline
http://www.mlit.go.jp/river/bousai/timeline/index.html

"The Timeline (Disaster Mitigation Action Plan) " and the "Disaster Prevention Map Timeline by Resident have also been created" to show examples of the timeline.

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