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Adelaide Research and Scholarship
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Schools and Disciplines
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School of Civil, Environmental and Mining Engineering
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Civil and Environmental Engineering Publications
Permanent link to this item:
http://hdl.handle.net/2440/22949
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| Type: | Article |
| Title: | Multi-objective trade-offs between cost and reliability in the replacement of water mains |
| Author: | Dandy, Graeme C.
Engelhardt, Mark Owen |
| Citation: | Journal of Water Resources Planning and Management - ASCE, 2006; 132 (2):79-88 |
| Publisher: | American Society of Civil Engineers |
| Issue Date: | 2006 |
| ISSN: | 0733-9496 |
| School/Discipline: | School of Civil and Environmental Engineering |
Statement of
Responsibility: | G. C. Dandy and M. Engelhardt |
| Abstract: | Two of the main performance criteria of a water distribution system are that it is inexpensive to construct, operate, and maintain and that it operates in a reliable manner. These two criteria are often conflicting, thus implying that the decision maker needs to reach a compromise in scheduling mains for replacement. One way to facilitate this decision is to generate a trade-off surface that represents the compromise between the two objectives. This paper demonstrates the use of genetic algorithms to generate trade-off curves between cost and reliability for pipe replacement decisions. Curves for two planning scenarios are generated. The first identifies the trade-offs necessary for the current conditions. The second allows the water authority to determine the required levels of future expenditure, given funding constraints, to meet a specified level of service over the entire planning horizon. Alternatively, it provides an estimate of the impact on performance of delaying expenditure. |
| Keywords: | Costs; Reliability; Water distribution systems; Retrofitting |
| Description: | © 2006 ASCE |
| RMID: | 0020060204 |
| DOI: | 10.1061/(ASCE)0733-9496(2006)132:2(79) |
| Published version: | http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JWRMD5000132000002000079000001&idtype=cvips&gifs=yes |
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| Appears in Collections: | Civil and Environmental Engineering Publications
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