Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Understanding failure rates in cast iron pipes using temporal stratification
The need for proactive replacement schedules in the management of water supply infrastructure is highlighted by the ever-increasing cost of reactive repairs. Proactive replacement schedules require models of asset performance, and, in turn, these models require appropriate stratifications of the data in order to produce subgroups that are expected to behave uniformly over time. This paper outlines a new approach to determine relevant temporal stratifications through an examination of historical performance. This represents a novel alternative to current practice where stratification regimes are identified using a priori knowledge of criteria deemed relevant. A key advantage of using the actual break histories to identify appropriate stratifications lies in the ability to identify changes in behaviour that may not be reflected in a priori criteria. In an example using Hunter Water Corporation break data a significant change is discovered and found not to correlate with previously hypothesised partition criteria. A possible cause for the change in behaviour is suggested.
Understanding failure rates in cast iron pipes using temporal stratification
The need for proactive replacement schedules in the management of water supply infrastructure is highlighted by the ever-increasing cost of reactive repairs. Proactive replacement schedules require models of asset performance, and, in turn, these models require appropriate stratifications of the data in order to produce subgroups that are expected to behave uniformly over time. This paper outlines a new approach to determine relevant temporal stratifications through an examination of historical performance. This represents a novel alternative to current practice where stratification regimes are identified using a priori knowledge of criteria deemed relevant. A key advantage of using the actual break histories to identify appropriate stratifications lies in the ability to identify changes in behaviour that may not be reflected in a priori criteria. In an example using Hunter Water Corporation break data a significant change is discovered and found not to correlate with previously hypothesised partition criteria. A possible cause for the change in behaviour is suggested.
Understanding failure rates in cast iron pipes using temporal stratification
Silinis, Petras G (Autor:in) / Franks, Stewart W. (Autor:in)
Urban Water Journal ; 4 ; 1-7
01.03.2007
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Understanding failure rates in cast iron pipes using temporal stratification
| Online Contents | 2007
Failure modes and mechanisms in gray cast iron pipes
| British Library Conference Proceedings | 2001
| Engineering Index Backfile | 1935
| Engineering Index Backfile | 1902