Pipe Criticality Analysis for Water Distribution Systems
Publication: Pipelines 2011: A Sound Conduit for Sharing Solutions
Abstract
An approach to evaluate the relative criticality of different pipes in a water distribution system is presented. To quantify the relative criticality of pipelines, a term "Relative Criticality Index (RCI)" has been defined and measured. RCI was developed by summing up the effects of reliability, cost of break repairs and energy required to repair breaks. These three components have been quantified and added appropriately to obtain an overall criticality index of pipelines in water distribution systems. The model is demonstrated by using a 9.4 square mile area of a water distribution system comprising downtown Phoenix, Arizona. The availability of the study area was estimated to be 46.6% and the relative criticality index indicates that galvanized steel pipes followed by regular steel and ductile iron pipes in the system are critical (i.e. vulnerable) for the system considered. The analysis also presents predicted future costs and energy requirements to repair breaks in the water distribution system for a 20 year analysis period. The results indicate that the expenditures to repair pipe breaks in the system for the analysis period is estimated to be $17.1 million. Additionally, the energy required to repair these breaks during the same timeframe would be 2,486 MWH. A Relative Criticality Index (RCI), along with future requirements of critical resources, should aid cities in better planning and managing of their water distribution systems.
Get full access to this article
View all available purchase options and get full access to this chapter.
Information & Authors
Information
Published In
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Analysis (by type)
- Benefit cost ratios
- Business management
- Disaster risk management
- Engineering fundamentals
- Financial management
- Infrastructure
- Pipeline systems
- Pipelines
- Pipes
- Practice and Profession
- Risk management
- Steel pipes
- System analysis
- Urban and regional development
- Urban areas
- Water and water resources
- Water management
- Water pipelines
- Water supply
- Water supply systems
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.