Defect based risk assessment model for prioritizing inspection of sewer pipelines

M. Elmasry, A. Hawari, T. Zayed

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In presence of financial constraints and dire need for inspecting deteriorated sewer pipelines, inspection prioritization tools are required. This paper presents a defect based risk assessment model for prioritizing inspection of sewer pipelines. Different defects that could be present in sewer pipelines are used to build a deterioration model that employs dynamic Bayesian belief network from which the probability of a pipeline to be in a certain condition state with respect to age can be determined. The consequence of failure for sewer pipelines are studied from a cost benefit analysis point of view, where the costs resulting from sewer pipelines failure are studied, and the benefits from avoiding such failures are analyzed. Sugeno-fuzzy inference system is used to integrate both the probability and consequence of failure. It is expected that the resulting risk map would help key personnel in municipalities to identify sewer pipelines that require immediate interventions and would assist in better planning for inspection programs especially in cases of limited funds.

Original languageEnglish
Title of host publicationPipelines 2018
Subtitle of host publicationCondition Assessment, Construction, and Rehabilitation - Proceedings of Sessions of the Pipelines 2018 Conference
EditorsJason S. Lueke, Christopher C. Macey
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1-9
Number of pages9
ISBN (Electronic)9780784481653
DOIs
Publication statusPublished - 2018
EventPipelines 2018 Conference: Condition Assessment, Construction, and Rehabilitation - Toronto, Canada
Duration: 15 Jul 201818 Jul 2018

Publication series

NamePipelines 2018: Condition Assessment, Construction, and Rehabilitation - Proceedings of Sessions of the Pipelines 2018 Conference

Conference

ConferencePipelines 2018 Conference: Condition Assessment, Construction, and Rehabilitation
Country/TerritoryCanada
CityToronto
Period15/07/1818/07/18

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanical Engineering
  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

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