2020
DOI: 10.1139/cjce-2019-0481
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Water pipe failure prediction and risk models: state-of-the-art review

Abstract: This review paper presents the current state-of-the-art pertains to water pipe failure prediction and risk assessment, published in the last ten years (2009-2019). The mainstream of the current practice characterizes the structural deterioration and failure rates using various statistical techniques, whereas the remainder of research covers a proliferation of machine learning and soft computing applications to forecast and model the pipeline risk of failure. The review offers descriptions of the models togethe… Show more

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Cited by 46 publications
(11 citation statements)
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“…While there are many opportunities to increase the accuracy level of the model by having additional parameters and longer-term data, the advantage of a scorecard value is its simplicity. It conveys a clear and uncomplicated message to the decision maker unlike other complicated models (see Dawood et al 2020a for a comprehensive review). Scorecard modelling is extensively used in the banking industry to weed out 'good' versus 'bad' investors at the time of loan application.…”
Section: Discussionmentioning
confidence: 99%
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“…While there are many opportunities to increase the accuracy level of the model by having additional parameters and longer-term data, the advantage of a scorecard value is its simplicity. It conveys a clear and uncomplicated message to the decision maker unlike other complicated models (see Dawood et al 2020a for a comprehensive review). Scorecard modelling is extensively used in the banking industry to weed out 'good' versus 'bad' investors at the time of loan application.…”
Section: Discussionmentioning
confidence: 99%
“…Figure 2(b) also illustrates a clear distinction between these two groups as the mean and median values dropping significantly between younger and older pipes. Past research provides clear evidence for this observation as a large number of studies have done systematic observations of pipe deterioration with age (Harvey et al 2014;Chik et al 2017;Farmani et al 2017;Dawood et al 2020a). According to Christodoulou (2011) aged pipes must be replaced at approximately 30 years.…”
Section: Model Validationmentioning
confidence: 91%
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“…e size of the detection standard λ value determines the number of flow measurement points; the larger the value of λ taken, the more flow monitoring points need to be arranged the higher the accuracy of monitoring, while it will cause increased costs and operating expenses; conversely, the smaller the number of arrangements, the lower the corresponding accuracy [25]. e value of λ in the actual engineering calculation can be considered according to the requirements of accuracy and cost.…”
Section: Multivariate Statistical Model Design For Water Leakage Of U...mentioning
confidence: 99%
“…Most research on water main failure prediction is focused on three aspects: (1) development of models to predict water main failure; (2) predictive factors for failure; and (3) prediction model outputs -e.g., failure rate, probability of failure, etc. These efforts have been summarized and discussed in many literature reviews, which generally focus on existing types of prediction model and their evolution Clair & Sinha 2012;Nishiyama & Filion 2013b;Ogutu et al 2017;Wilson et al 2017;Wu & Liu 2017;Dawood et al 2020). Less effort has been expended on reviewing model factors and other aspects of this research (Gao 2017).…”
Section: Graphical Abstract Introductionmentioning
confidence: 99%