| dc.description.abstract | Sewer networks form a part of modern society's critical infrastructure, due to their function that
ensures public health and environmental protection in urban areas and their capital-intensive
nature. These systems, however, have been undergoing deterioration, malfunctioning and
overloading, mainly caused by their long lifetimes, inadequate maintenance, or population
growth. These issues require repair or rehabilitation. Still, due to an insufficient sewer system
rehabilitation budget, utility managers have been forced to prioritize competing projects.
Therefore, prioritizing sewer rehabilitation interventions have become crucial to address these
problems and optimize the allocation of limited resources. This study proposes an integrated
decision support system integrating the Analytic Hierarchy Process (AHP) and Geographic
Information Systems (GIS) to prioritize sewer system rehabilitation in Gdyel, Algeria based on
both physical and hydraulic criteria. A set of 18 indicators ware used to rank sewer network of
Gdyel city, under two different scenarios. The results showed that 13% of the network in
Scenario 1 and 31% in Scenario 2 require urgent intervention. In addition, a methodology was
introduced to confirms the proposed approach accuracy, which effectively aligned high-priority
areas with known high-risk zones. | en_US |
