Water distribution system design under uncertainties

Kevin E. Lansey, Ning Duan, Larry W. Mays, Yeou-Koung Tung

Research output: Contribution to journalArticlepeer-review

89 Scopus citations


A chance constrained model is presented for the minimum cost design of water distribution networks. This methodology attempts to account for the uncertainties in required demands, required pressure heads, and pipe roughness coefficients. The optimization problem is formulated as a nonlinear programming model which is solved using a generalized reduced gradient method. Details of the mathematical model formulation are presented along with example applications. Results illustrate that uncertainties in future demands, pressure head requirements, and pipe roughness can have significant effects on the optimal network design and cost.

Original languageEnglish
Pages (from-to)630-645
Number of pages16
JournalJournal of Water Resources Planning and Management
Issue number5
StatePublished - 1 Jan 1989

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