Hydraulic Availability Evaluation of Urban Water Distribution Systems

by M. John Cullinane, Jr., US Army Engineer Waterways, Experiment Station, Vicksburg, MS, USA,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


This paper presents a concept for evaluating urban water system reliability using an extended period hydraulic simulation model in conjunction with mechanical availability analysis. Reliability of an urban water distribution system can be measured as the availability, where availability is defined as the percentage of time that the demand can be delivered at or above the required residual pressure. The availability at an individual critical node within the system may be much more important than overall system reliability.

Subject Headings: Municipal water | Water supply systems | Hydraulics | Urban areas | Hydraulic models | Hydrologic models | Simulation models | Water use

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