Criticality model to prioritize pipeline rehabilitation decisions

Khalid Kaddoura, Tarek Zayed

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

2 Citations (Scopus)

Abstract

Sewer networks are comprised of a huge maze of underground pipelines. They are designed and laid to transfer sewage medium to treatment plants or disposal areas. However, their conditions are subject to deterioration owing to ageing. The American Society of Civil Engineers claimed that the sewer infrastructure grade is D+. Inspection, assessment, and effective decisions are required to enhance their performance through their service life. There are several inspection methods and assessment models that can evaluate the condition of the pipelines. When evaluating the global network, the city or municipality will end up having thousands of pipeline conditions. Therefore, they confront obstacles in deciding which pipelines to tackle first. The objective of this study is to design a criticality model that is based on multiple factors that could affect the criticality of one pipeline to another. The study evaluates the weights for the environmental, economic, and public factors as well as their subfactors by using the analytic network process (ANP). The results concluded that the most important factor is the economic factor. The criticality model is implemented on an actual case study brought from the city of Edmonton, Canada. Based on the results, 20% of the pipelines are of low criticality; 70% are of medium criticality; and 10% are of high criticality. This study is expected to enhance the prioritization of the pipelines in the network for efficient future decisions.

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)
Pages75-85
Number of pages11
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
CountryCanada
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

Cite this