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Long‐term planning methodology for water distribution system rehabilitation
Author(s) -
Kleiner Yehuda,
Adams Barry J.,
Rogers J. Scott
Publication year - 1998
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/98wr00377
Subject(s) - water supply , term (time) , reliability engineering , environmental science , identification (biology) , computer science , water quality , reduction (mathematics) , cost reduction , rehabilitation , engineering , environmental engineering , business , mathematics , botany , geometry , marketing , neuroscience , biology , ecology , physics , quantum mechanics
The most expensive component of a water supply system is the distribution network. Deterioration due to aging and stress causes increased operation and maintenance costs, water losses, reduction in the quality of service, and reduction in the quality of water supplied. In this paper an approach is proposed in which the water distribution network economics and hydraulic capacity are analyzed simultaneously over a predefined analysis period while the deterioration over time of both the structural integrity and the hydraulic capacity of every pipe in the system is explicitly considered. The cost associated with each pipe in the network is calculated as the present value of an infinite stream of costs. In Kleiner et al. [this issue] a methodology is presented to implement this approach into a decision support system that facilitates the identification of an optimal rehabilitation strategy.