ID:
publications-4360
Type:
article
Year:
2015
Authors:
Shafiee, M. Ehsan and Shafiee, M. Ehsan and Berglund, Emily Zechman and Berglund, Emily Zechman
Title:
Real-Time Guidance for Hydrant Flushing Using Sensor-Hydrant Decision Trees
Venue/Journal:
Journal of Water Resources Planning and Management
DOI:
10.1061/(asce)wr.1943-5452.0000475
Research type:
Water System:
Technical Focus:
Abstract:
AbstractA utility may detect contaminant in a water distribution network through water quality sensor information, which indicates that a biological pathogen or chemical contaminant is present in the network. A utility manager should identify actions that can be taken to protect public health, and flushing a contaminant by opening a set of hydrants can be an effective response action. Hydrants should be selected and timed to flush the contaminant; however, accurately ascertaining the characteristics of the contaminant source may be impossible, which creates difficulties in developing a hydrant flushing strategy. This research develops a decision-making approach that is designed to select hydrant flushing strategies in response to sensor activations and does not require information about the characteristics of the contaminant source. A sensor-hydrant decision tree is introduced to provide a library of rules for opening and closing hydrants based on the order of activated sensors. Sensor-hydrant decision tr...
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