Optimal Expansion Strategy for a Sewer System under Uncertainty

N-B Chang, Elma Uddameri

Research output: Contribution to journalArticlepeer-review

Abstract

Because of fast urban sprawl, land use competition, and the gap in available funds and needed funds, municipal decision makers and planners are looking for more cost-effective and sustainable ways to improve their sewer infrastructure systems. The dominant approaches have turned to planning the sanitary sewer systems within a regional context, while the decentralized and on-site/cluster wastewater systems have not overcome the application barriers. But regionalization policy confers uncertainties and risks upon cities while planning for future events. Following the philosophy of smart growth, this paper presents several optimal expansion schemes for a fastgrowing city in the US/Mexico borderlands—the city of Pharr in Texas under uncertainty. The waste stream generated in Pharr is divided into three distinct sewer sheds within the city limit, including south region, central region, and north region. The options available include routing the wastewater to a neighboring municipality (i.e
Original languageEnglish
Pages (from-to)93-113
JournalEnvironmental Modeling and Assessment
DOIs
StatePublished - 2008

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