An evaluation of flood risk reduction utilizing green infrastructures in the greater Tokyo area

K. Tanji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to evaluate the effects of runoff control by green infrastructures in densely urbanized residential areas in the Greater Tokyo Area (GTA) in order to reduce the risk of urban flooding. In this research, we make comparisons of the effects of runoff control between green infrastructure and the measures projected by the Tokyo metropolitan government, which are composed of a mixture of porous pavement, seepage pit, and trenches for infiltration. This paper reveals that a green infrastructure plan gives feasible measures considering land use conditions, but is inferior to that of a seepage pit and soakage trench plan in terms of the total essential site area and the required expense. However, theoretically, the expense of the green infrastructure is improved by creating incentives for residents.

Original languageEnglish
Title of host publicationThe Sustainable City IX
Subtitle of host publicationUrban Regeneration and Sustainability
EditorsSimone Bastianoni, Riccardo Pulselli, Nadia Marchettini, C.A. Brebbia
PublisherWITPress
Pages1267-1275
Number of pages9
Volume191
ISBN (Electronic)9781845648206
DOIs
Publication statusPublished - 2014 Sept 23
Externally publishedYes
Event9th International Conference on Urban Regeneration and Sustainability, SC 2014 - Siena, Italy
Duration: 2014 Sept 232014 Sept 25

Other

Other9th International Conference on Urban Regeneration and Sustainability, SC 2014
Country/TerritoryItaly
CitySiena
Period14/9/2314/9/25

Keywords

  • Densely built-up area
  • Flood in urban area
  • Green infrastructure

ASJC Scopus subject areas

  • General Environmental Science

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