Date of Award

Fall 1994

Document Type


Degree Name

Master of Science (MS)


Engineering Management & Systems Engineering


Engineering Management

Committee Director

Derya A. Jacobs

Committee Member

Billie M. Reed

Committee Member

Han A. Bao

Call Number for Print

Special Collections LD4331.E555R43


The purpose of this thesis is to study and develop a knowledge-based system to make decisions for the rehabilitation of wastewater pipelines. Development includes justification for the use of an expert system, data acquisition from knowledge experts, program model development, model testing, implementation and future considerations including expansion. The model is developed and implemented using an expert system shell called XIPlus ®.

This knowledge-based system is designed specifically for the Navy Public Works Center Utilities Department at Norfolk Naval Base in Norfolk, Virginia for making decisions for the rehabilitation of the 50-year-old wastewater collection system. Recent sewer collapses and a mandate by the Hampton Roads Sanitation District to reduce inflow and infiltration during wet weather periods has increased the need to expedite sewer repairs throughout the base.


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