Evaluation of the critical factors causing sewer overflows through modeling of structural equations and system dynamics

Saeed Reza Mohandes, Ahmed Farouk Kineber, Sherif Abdelkhalek, Khalid Kaddoura, Moustafa Elsayed, M. Reza Hosseini, Tarek Zayed

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)


The present study proposes a novel hybrid methodological approach for meticulously investigating the factors causing Sewer Overflow (SO). The proposed framework is based on a systematic literature review, experts’ interviews, PLS-SEM statistical technique, and system dynamic modeling. Based on a large number of data collected from experts having rich experience in developed countries, three major findings are obtained: (1) three main factors and eighteen sub-factors are the main culprit of SO occurrence, (2) under design pipe diameter, blockages, and infiltration and inflow are the most significant sub-factors within the respective clusters, and (3) physical-related sub-factors are the most influential causes of SO occurrence under a dynamic environment. The findings attained in this study offer an insightful account for the concerned environmental decision-makers on coming up with further fecund measures towards reducing the magnitude of SO, preserving our environment from the occurrence of such harmful incidents.

Original languageEnglish
Article number134035
JournalJournal of Cleaner Production
Publication statusPublished - 15 Nov 2022


  • Critical factors
  • Environmental concern
  • Sewer failure
  • Sewer overflow
  • Structural equation modeling
  • System dynamic

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Environmental Science
  • Strategy and Management
  • Industrial and Manufacturing Engineering


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