Modeling deterioration and managing failure risk of buried critical infrastructure

The lack of sufficient historical data on the deterioration of buried critical infrastructure such as large-diameter transmission water mains and trunk sewers is an obstacle to formulating an effective strategy for managing its failure risk. These historical data are required to model rates of deterioration in order to anticipate and prevent future failures without resorting to frequent inspections that are both very costly and disruptive.La p\ue9nurie de donn\ue9es historiques suffisantes sur la d\ue9t\ue9rioration des infrastructures essentielles enfouies, telles que les conduites ma\ueetresses d'eau et les \ue9gouts principaux de fort diam\ue8tre, constitue un obstacle \ue0 la formulation d'une strat\ue9gie efficace de gestion de leurs risques de d\ue9faillance. Ces donn\ue9es historiques sont requises aux fins de la mod\ue9lisation des vitesses de d\ue9t\ue9rioration, pour permettre de pr\ue9voir / pr\ue9venir les d\ue9faillances sans devoir r\ue9aliser de fr\ue9quentes inspections, qui \ue0 la fois sont co\ufbteuses et perturbent les services.Peer reviewed: NoNRC publication: Ye