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Title: WATER NETWORK ASSESSMENT AND RELIABILITY ANALYSIS BY USE OF SURVIVAL ANALYSIS

Author: S. Christodoulou

Year: 2009

Publisher: European Water Resources Association (EWRA)

Description:

Sustainable management of urban water distribution networks should include not only new methods for monitoring, repairing or replacing aging infrastructure, but more importantly expanded methods for modelling deteriorating infrastructure so as to proactively assess the risk of failure and devise replace-or-repair strategies. The paper presents a framework for devising such a proactive risk-based integrity-monitoring strategy for the management of urban water distribution networks. The framework presented is based on a combination of artificial neural network, parametric and nonparametric survival analysis and it is utilized in the estimation of time-to-failure metrics for pipe networks.