Research Article
Nov 1978
Least-Cost Design of Urban-Drainage Networks
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VIEW THE REPLYAuthors: Syver Froise and Stephen J. Burges, M.ASCEAuthor Affiliations
Publication: Journal of the Water Resources Planning and Management Division
Volume 104, Issue 1
Abstract
Network layouts were assumed to be known from previous planning activies; inlet hydrographs were arbitrarily chosen. The optimization problem was posed as an N-stage sequential process; network nodes or junctions were treated as the stage variable, conduit invert elevations at the junctions as the state variable, and maximum flow rates and conduit sizes (restricted to commercial sizes) as decision variables. Unsteady flow routing between stages is incorporated into the optimization model. Compared with conventional design methods, use of the approach could achieve overall drainage network cost reductions amounting to 30%. Of this saving, 40% is attributed to use of storage elements as a flow control option, and the remaining 60% achieved by optimal combinations of conduit sizes and use of advanced hydraulic modeling.
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Published In
Journal of the Water Resources Planning and Management Division
Volume 104 • Issue 1 • November 1978
Pages: 75 - 92
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Nov 1978
Published online: Feb 12, 2021
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Authors
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Syver Froise
Sivilingenior, Ingenior A.B. Berdal A/S, Maries Vei 20, 1322 Hovik, Norway
Stephen J. Burges, M.ASCE
Assoc. Prof. of Civ. Engrg., Univ. of Washington, Seattle, Wash
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.