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Condition Assessment Model for Underground Water Mains Performance

Condition Assessment Model for Underground Water Mains Performance One of the greatest challenges facing by municipal engineers all over the world is condition assessment of underground water mains performance. As water mains are buried infrastructure, operated under pressure and most important it is inaccessible. In this situation, condition assessment of water mains is challenging as well as become mandatory to employ management strategies for these assets. This work presents the result of condition assessment of water mains performance by analytical hierarchy process modeling. The model was developed for data collected (2006–2011) from south-west zone of Surat city, India. The physical, operational and environmental main factors and 10 sub factors were selected to assess performance of water mains. The pair wise comparison matrices have been generated to make relative weights of each factor and their sub-factors. It represents relative importance of these factors among other factors. The pipe age is found highest relative contributing factor and pipe thickness is least relative contributing factor. The developed model generate results in terms of pipes condition on numeric scale, which is compared with linguistic scale and pipe condition is found like very risky, risky, adequate, good or excellent. The developed model is validated, which shows robust results of 86.4 %, the average validity percentage. Hence, the model is expected to benefit practitioners to prioritize rehabilitation or replacement planning for water mains. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India): Series A Springer Journals

Condition Assessment Model for Underground Water Mains Performance

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Publisher
Springer Journals
Copyright
Copyright © 2014 by The Institution of Engineers (India)
Subject
Engineering; Civil Engineering
ISSN
2250-2149
eISSN
2250-2157
DOI
10.1007/s40030-014-0090-y
Publisher site
See Article on Publisher Site

Abstract

One of the greatest challenges facing by municipal engineers all over the world is condition assessment of underground water mains performance. As water mains are buried infrastructure, operated under pressure and most important it is inaccessible. In this situation, condition assessment of water mains is challenging as well as become mandatory to employ management strategies for these assets. This work presents the result of condition assessment of water mains performance by analytical hierarchy process modeling. The model was developed for data collected (2006–2011) from south-west zone of Surat city, India. The physical, operational and environmental main factors and 10 sub factors were selected to assess performance of water mains. The pair wise comparison matrices have been generated to make relative weights of each factor and their sub-factors. It represents relative importance of these factors among other factors. The pipe age is found highest relative contributing factor and pipe thickness is least relative contributing factor. The developed model generate results in terms of pipes condition on numeric scale, which is compared with linguistic scale and pipe condition is found like very risky, risky, adequate, good or excellent. The developed model is validated, which shows robust results of 86.4 %, the average validity percentage. Hence, the model is expected to benefit practitioners to prioritize rehabilitation or replacement planning for water mains.

Journal

Journal of The Institution of Engineers (India): Series ASpringer Journals

Published: Dec 12, 2014

References