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Track 1 Session 11
10:40 to 11:40 a.m. Friday March 28, 2008
Survival Analysis in Water Supply
Networks
The problem of aging water supply
networks affects almost all cities in developed countries. Different
strategies can be used to apply the high investments required by
network renewal in the best possible manner. Among them, one of the
most important is the identification of influential factors in pipe
failure risk and the subsequent possibility of forecasting the risk
affecting different pipes. This requires the existence of adequate
historical databases, which have not always existed, and the use of
statistical survival models to identify these influential factors
and to evaluate the pipe’s failure risk.
This session presents a case study is which the problems with
data are discussed, and the selection and use of statistical models
illustrate how this task can be accomplished.
Key Words: Water Supply,
Survival Analysis, Life Tables, Cox Model
Andrés Carrión García, Ana Debón Aucejo and Liney Manjarrés
Polytechnic University of Valencia
Spain
Hernando Solano
Hurtado
Universidad Diego Portales
Chile |
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