A water distribution network is one of the important parts of infrastructure systems. The efficient management and proactive planning of capital investment of these assets are fundamental for efficient and effective service delivered by water companies. The direct economic costs (i.e. rehabilitation investment, repair costs, water loss, etc.) as well as indirect costs (i.e. service and traffic ...

Bayesian Belief Networks for Predicting Drinking Water Distribution System Pipe 1 Breaks 2 Royce A. Francis ([email protected]), Seth D. Guikema ([email protected]), Lucas Henneman 3 ([email protected]) 4 a Department of Engineering Management and Systems Engineering, 1776 G St., NW #159, The George Washington 5 University, Washington, DC, USA 20006 6 b Department of Geography and Environmental Eng...

In this paper, we use Bayesian Belief Networks (BBNs) to construct a knowledge model for pipe breaks in a water zone. Development of expert systems such as BBNs for analyzing real-time data is not only important for pipe break prediction, but is also a first step in preventing water loss and water quality deterioration through the application of machine learning techniques to facilitate real-ti...

An approach is developed for identifying key data to be used in asset management in general, and for predicting pipe breaks and selecting appropriate models in particular. The approach is applied to the District of Maple Ridge, B.C., Canada to identify the magnitude of a utility’s pipe burst problems today and in the future, enhance the development of pipe replacement priorities based on foreca...

Infrastructure systems of many U.S. cities are in poor condition, with many assets reaching the end of their service life and requiring significant capital investments. One primary requirement to optimize the allocation of investments in such systems is an effective assessment of the physical condition of assets. This paper addresses the physical condition assessment of drinking water distribut...

This paper presents the architecture used to develop a micro-robot for narrow pipes inspection. Both the electromechanical design and the control scheme will be described. In pipe environments it is very useful to have a method to retrieve information of the state of the inside part of the pipes in order to detect damages, breaks and holes. Due to the different types of pipes that exists, a mod...

Buried pipeline systems are commonly used to transport water, sewage, oil, natural gas and other materials. In the conterminous United States, there are about 77,109 km (47,924 miles) of crude oil pipelines, 85,461 km (53,114 miles) of refined oil pipelines and 67,898 km (42,199 miles) of natural gas pipelines (FEMA, 1991). The total length of water and sewage pipelines is not readily available...

The deterioration and fracture of water supply pipes present a major threat for the continuous provision drinking water. hydraulic pressure in is an influential factor occurrence pipe breaks. However, little evidence has been provided so far quantitative assessment impact control on reducing number In this paper, we applied logistic regression with polynomial terms, sensitivity analysis to asse...