Open AccessBroad‐scale reliability analysis of the flood defence infrastructure within the T aihu B asin, C hina
Author(s) -
Jiabi X.,
Sayers P.,
Dongya S.,
Hanghui Z.
Publication year - 2013
Publication title -
journal of flood risk management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.049
H-Index - 36
ISSN - 1753-318X
DOI - 10.1111/jfr3.12034
Subject(s) - flood myth , flooding (psychology) , context (archaeology) , dike , reliability (semiconductor) , scale (ratio) , flood mitigation , operations research , environmental science , computer science , engineering , geography , geology , cartography , psychology , physics , power (physics) , archaeology , geochemistry , quantum mechanics , psychotherapist
Abstract The T aihu B asin is home to some of the most economically active and populous cities in C hina, including S hanghai. The B asin lies in the coastal delta of the Y angtze River and is defended from frequent flooding by a complex system of flood control infrastructure (including dikes, numerous large sluice gates and pumping stations). Flood risk in the B asin is closely related to the reliability of the flood defences. The information available to support system reliability analysis is however limited. A simplified defence classification and reliability analysis has therefore been adopted in which the behaviour of defence subsystems (dike rings) are presented through a single representative fragility curve. A combination of expert judgement and available quantified data is used to support the analysis. The approach is found to be informative within the context of (i) a broad scale flood risk analysis, (ii) an exploration of longer term management policies and (iii) targeting more detailed analysis and data collection required to support specific management choices.