ID:
publications-3904
Type:
article
Year:
2010
Authors:
Nafi, Amir and Nafi, Amir and Kleiner, Yehuda and Kleiner, Yehuda
Title:
Scheduling Renewal of Water Pipes While Considering Adjacency of Infrastructure Works and Economies of Scale
Venue/Journal:
Journal of Water Resources Planning and Management
DOI:
10.1061/(asce)wr.1943-5452.0000062
Research type:
Water System:
Technical Focus:
Abstract:
Much research effort has been dedicated to the development of optimal strategies for rehabilitation and/or replacement of water mains. Some of the methods are intended for high-level planning of groups or cohorts of pipes, while others address low-level scheduling of individual water mains. This paper focuses on the latter aspect. An approach is proposed for the efficient scheduling of individual water mains for replacement in a short to medium predefined planning period and subject to various budgetary constraints. This approach also accounts for economies of scale considerations as well as harmonization with other known infrastructure works. A multiobjective genetic algorithm scheme is used as a tool to search a vast combinatorial solution space, comprising various combinations of pipe replacement schedules.
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