Improving Water Supply Systems Resilience to Floods: Developing a Measurement Tool for Tanzania

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dc.contributor.advisor Quenneville, Pierre
dc.contributor.advisor Chang-Richard, Alice Yang
dc.contributor.advisor Wilkinson, Suzanne
dc.contributor.author Sweya, Lukuba Ngalya
dc.date.accessioned 2020-10-27T01:24:00Z
dc.date.available 2020-10-27T01:24:00Z
dc.date.issued 2020 en
dc.identifier.uri http://hdl.handle.net/2292/53389
dc.description.abstract Tanzania is a tropical country in the East Africa region that has experienced the impacts of flooding for more than a decade. Hundreds of people have lost their lives and lifeline infrastructures such as roads and water systems were damaged. Failure of water supply systems (WSSs) during floods has shown grave consequences to Tanzanians. The failure could be in the form of systems breakdown or water contamination. System breakdown leaves the majority without access to safe water as bottled water is costly and nearly unaffordable to poor populations. Given that less than 85% have access to conventional water supply services delivered by the Water Supply and Sanitation Authorities (WSSAs), a good number is still relying on unimproved water systems, posing a worry due to use of contamination-prone water. Such situations underline the need for improving the Tanzania water supply systems’ resilience to better prepare for future risks of flooding. However, resilience can be improved when there is the ability to measure it. Thus, the current study developed a multi-dimensional qualitative resilience measurement tool for the country’s water supply systems. The study applied an expert’s judgement elicitation through five stages—variables pre-assessment, variables pretesting, tool development using Delphi survey, final tool evaluation, and validation. The tool has five dimensions—technical, organizational, social, economic, and environmental, addressing the diverse resilience issues in the water supply systems. Each dimension contains principles, indicators, measures, and assessment scales. When evaluated in selected Tanzania water supply systems, the tool can indicate the current resilience level of the system and suggest the aspects that need strengthening. Results can support decision making in terms of prioritization and budgeting for the appropriate measures to improve the resilience of the water supply systems. Validation results indicate further that the tool is a valid measure in terms of reliability, relationship pattern of the indicators, applicability, and generality. The tool leads to sustainable water supply services during flooding and aids in reducing the global temperature to achieve the Paris Agreement. Also, assists in attaining sustainable development goals related to water supply and infrastructures resilience. Thus, it can be used for Tanzania water supply systems and in other developing countries around the world.
dc.publisher ResearchSpace@Auckland en
dc.relation.ispartof PhD Thesis - University of Auckland en
dc.relation.isreferencedby UoA99265324810702091 en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Improving Water Supply Systems Resilience to Floods: Developing a Measurement Tool for Tanzania
dc.type Thesis en
thesis.degree.discipline Civil Engineering
thesis.degree.grantor The University of Auckland en
thesis.degree.level Doctoral en
thesis.degree.name PhD en
dc.date.updated 2020-10-08T11:45:46Z
dc.rights.holder Copyright: The author en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en


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