A multi-criteria risk-based approach for optimal planning of SuDS solutions in urban flood management

Mozhgan Karami, Kourosh Behzadian*, Abdollah Ardeshir, Azadeh Hosseinzadeh, Zoran Kapelan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a multi-criteria risk-based approach for managing urban flood hazards by using a combination of conventional measures and contemporary Sustainable Drainage Systems (SuDS). A multi-objective optimisation model coupled with a simulation model of UDS in the SWMM software is developed with the three objectives of minimising total costs, the risk of flooding and pollution discharged into receiving waters. K-means clustering technique is used to group the optimal solutions. A few optimal solutions and individual SuDS solutions are then ranked together by using the compromise programming (CP) method. The methodology is demonstrated by its application on a case study of the Golestan city UDS in Iran. The results obtained show there are indirect correlations between non-dominated solutions that minimise the risk of either flooding or pollution. The results also show the selected optimal solutions can provide cost-effective strategies that reduce both flood and pollution risks by at least 27% and 50%, respectively.

Original languageEnglish
Pages (from-to)1066-1079
Number of pages14
JournalUrban Water Journal
Volume19
Issue number10
DOIs
Publication statusPublished - 2022

Keywords

  • Compromise programming
  • flood risk management
  • multi-criteria decision making
  • urban drainage systems

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