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Analysis of urban drainage networks using Gibbs' model : A case study in Seoul, South Korea

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  • Analysis of urban drainage networks using Gibbs' model
  • Seo, Yongwon; Hwang, Junshik; Noh, Seong Jin
  • Multidisciplinary Digital Publishing Institute


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Title Analysis of urban drainage networks using Gibbs' model
Similar Titles
Sub Title

A case study in Seoul, South Korea

Material Type Articles
Author(English)

Seo, Yongwon; Hwang, Junshik; Noh, Seong Jin

Publisher

[Basel, Switzerland]:Multidisciplinary Digital Publishing Institute

Date 2015-07
Journal Title; Vol./Issue Water:vol 7(no. 8)
Pages 15
Subject Country South Korea(Asia and Pacific)
Language English
File Type Link
Subject Territorial Development < National Land Development
Territorial Development < Environment
Holding MDPI

Abstract

Drainage networks are essential compartments in an urban infrastructure system for the efficient collection and prompt drainage of flood water. In addition to the advances in numerical techniques on urban flood simulation, the topological characteristics of urban drainage networks and their impacts on flooding have not been investigated thoroughly despite their importance. This study evaluated the urban drainage networks in Seoul, South Korea, in terms of the network configuration and its implication for peak flows and flood mitigation. Gibbs’ model was used to analyze the network configuration of 31 urban catchments with various slope ranges. The results showed that urban drainage networks can be less efficient than river in nature in terms of the drainage time, which is counter-intuitive. On the other hand, the analysis showed that efficient networks have risks of flood concentration and, hence, increase potential flood risks. (The rest omitted)