Countermeasures against Tsunamis on Coast Administration

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  • 海岸行政における津波対策について
  • カイハツ トジョウコク ノ インフラ ジギョウ ニ カンスル JICA ノ トリクミ

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Abstract

We amended Coast Law in 1999. The main policies of coast administration are disaster prevention, environmental conservation and promotion of human activities in coast. The occurrences of gigantic earthquakes that cause huge tsunamis are anticipated. This paper shows the countermeasures against tsunamis on coast administration in Japan. We adopt two types of countermeasures. The one is protecting land area by constructing the coastal protection facilities. The combination with port protection measures such as breakwater is also adopted in several areas. The other is to take soft measures including hazard maps and life cycle management of the facilities. Information system is also important to reduce disasters.

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