Journal
JOURNAL OF CLEANER PRODUCTION
Volume 242, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2019.118515
Keywords
Low impact development; 2D simulation; Urban flooding; Life-cycle cost analysis; Analytic hierarchy process; Regret decision theory
Categories
Funding
- German Federal Ministry of Education and Research (BMBF) [02WCL1337A-K, 03G0852A]
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Rapid urbanisation and climate change-induced watershed hydrologic alteration have increased urban flooding risks. As a strategy for urban flood control, low impact development (LID) practices focus on promoting the infiltration and detention of stormwater runoff. A modelling-based study was conducted to analyse LID performance in urban flooding reduction. Two-dimensional simulations were conducted to visualise the flood risk under different precipitation scenarios and LID schemes. An integrated evaluation system based on life-cycle cost analysis, the analytic hierarchy process, and regret decision theory were applied to assess the LID performance in multiple aspects. The results indicated that the LID practices achieved runoff control and flood mitigation to some extent, especially under mild rainfall events. According to the integrated evaluation, urban flooding risk could be sufficiently reduced with the LID combination of bioretention, infiltration trenches, and rain barrels in the given area. (c) 2019 Elsevier Ltd. All rights reserved.
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