Optimization of Looped Water Distribution Systems

by Gerald E. Quindry, (A.M.ASCE), Sr. Project Engr.; SCS Engrs., Inc., 4014 Long Beach Blvd., Long Beach, Calif. 90807,
Jon C. Liebman, (M.ASCE), Prof. of Environmental Engrg. and Head; Dept. of Civ. Engrg., Univ. of Illinois at Urbana-Champaign, Urbana, Ill. 61801,
E. Downey Brill, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg. and the Inst. for Environmental Studies, Univ. of Illinois at Urbana-Champaign, Urbana, Ill. 61801,

Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 4, Pg. 665-679

Document Type: Journal Paper


An optimization technique is presented for use in planning and designing looped water distribution systems. The technique is iterative, employing linear programming and a gradient procedure; and it produces a locally optimal solution. A demonstration using data for the New York City water supply system, shows a potential cost saving of 13 percent for the solution obtained using the new method, in comparison to the best design developed in an earlier study.

Subject Headings: Water supply systems | Urban areas | Comparative studies | Water conservation | Hydraulic design | Linear functions | Computer programming | Municipal water | New York City | New York | United States

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