|
Track: Water Distribution, Wastewater, Sewer
Ewe Leng Lim
Seattle Water
710 Second Ave
Seattle, WA 98104
Telephone: 206-233-5173
Fax: 206-684-4654
E-mail: ewe_leng.lim@ci.seattle.wa.us
Ram Pratti
Pipe Evaluation System
The basic function of a municipal water utility is to ensure that acceptable water quality and quantity is delivered to the end user at the desired time. A major task of this function is to ensure the serviceability of the delivery system. As the distribution infrastructure ages, it becomes more and more of a challenge to assign limited capital expenditures to prioritize the repair, replacement, or rehabilitation of pipelines. Seattle Water has embarked on the development of a comprehensive Pipe Evaluation System (PIPES) application. This application fully utilizes Seattle Water's and the City's extensive GIS database to create a user-friendly interface to rank pipelines for prioritizing purposes. The PIPES application is developed based on an object-oriented modeling approach. This approach allows for the addition of new models or parameters as they become available. The current system consists of a vulnerability model, a criticality model, and a deterioration model. All three models rely extensively
on GIS analysis of the spatial relationship between pipelines and various data layers and attributes. With this application, Seattle Water's engineers, managers, and decision makers are better able to take a proactive approach in making informed decisions and prioritizing its capital expenditures to ensure the health of its water delivery system.
|
|
