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Logos Storm water management in Japan. Logos Urbanization led to increased runoff ratio Downtown of Tokyo 2 Total Floor Area (1000 m2) Increasing Risk.

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Presentation on theme: "Logos Storm water management in Japan. Logos Urbanization led to increased runoff ratio Downtown of Tokyo 2 Total Floor Area (1000 m2) Increasing Risk."— Presentation transcript:

1 Logos Storm water management in Japan

2 Logos Urbanization led to increased runoff ratio Downtown of Tokyo 2 Total Floor Area (1000 m2) Increasing Risk of Urban Flood

3 Logos LOGO speaker 3 Promotion of Inundation-Resistant Cities 3 Demarcation of Measures Public Structure (Sewer & Pump) BMP (Storage & Infiltration) Non Structural (Alert & Self protection)

4 Logos Structural & Non Structural Measures taken in Japan Infiltration On site storageStormwater facilities Flood Barrier as self protection Augmentation of sewer & pumps Relief sewer Retention facility 雨 Infiltration Pavement Rainwater Harvest Schoolyard use Structural Flood Map Real time alert Nonstructural 4 文京区

5 Logos Finance for Storm Water in Japan Capital Investment National Government (Subsidy) Local Government 50% O & M Local Government 100% ※ No User Charge is used at all 5

6 Logos  This presentation was made at 6 th World Water Forum in Marseille by Mr. Uematsu, Director, Ministry of Land, Infrastructure, and Transportation  Upload was made possible by the courtesy of him.  The upload version was slightly changed from the original for reader friendliness.  For more information, send email to info@gcus.jpinfo@gcus.jp  JSWA answers your questions after consultation with the author.


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