Determination of rehabilitation priority order of subareas in water distribution systems considering the relative importance of pipes

Do Guen Yoo, Joong Hoon Kim, Hwan Don Jun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Scheduling rehabilitation of pipes is essential for efficient maintenance and management of Water Distribution Systems. In reality, however, rehabilitation plans are more focused on subareas than on each pipe due to unpredictable variables: cut off time of water supply, number of traffic control times, and location of valves for example. This study determines rehabilitation priority order of subareas considering relative importance as well as deterioration of pipe. Water network is divided into several subareas according to valve locations and segments. Relative importance of pipes is included in the calculation process of rehabilitation priority order to consider hydraulic condition of the network. Then the relative importance of pipes is calculated on two failure simulations. The first simulation takes segments and unintended isolations to evaluate the relative importance according to the number of customers who are forced out of service when the segment is shut down. The second simulation develops Effect Index by considering abnormal condition which is produced when fluctuation of water causes sudden change of pressure. The decision making process adapts Weighted Utopian Approach by adding five weighting methods to get a result. The developed method provides practical results in the application to real networks. In this point, the model clearly has advantages over existing ones and can replace those in practice.

Original languageEnglish
Title of host publicationWater Distribution Systems Analysis 2010 - Proceedings of the 12th International Conference, WDSA 2010
Pages1045-1052
Number of pages8
DOIs
Publication statusPublished - 2012 Jan 30
Event12th Annual International Conference on Water Distribution Systems Analysis 2010, WDSA 2010 - Tucson, AZ, United States
Duration: 2010 Sep 122010 Sep 15

Publication series

NameWater Distribution Systems Analysis 2010 - Proceedings of the 12th International Conference, WDSA 2010

Other

Other12th Annual International Conference on Water Distribution Systems Analysis 2010, WDSA 2010
CountryUnited States
CityTucson, AZ
Period10/9/1210/9/15

Keywords

  • Rehabilitation Order
  • Relative Importance of Pipes
  • Subareas
  • Weighted Utopian Approach

ASJC Scopus subject areas

  • Water Science and Technology

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    Yoo, D. G., Kim, J. H., & Jun, H. D. (2012). Determination of rehabilitation priority order of subareas in water distribution systems considering the relative importance of pipes. In Water Distribution Systems Analysis 2010 - Proceedings of the 12th International Conference, WDSA 2010 (pp. 1045-1052). (Water Distribution Systems Analysis 2010 - Proceedings of the 12th International Conference, WDSA 2010). https://doi.org/10.1061/41203(425)94