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Integral assessment of the performance of water supply system in Yogyakarta city, Indonesia

Pun, Jiwan Kumari (2011) Integral assessment of the performance of water supply system in Yogyakarta city, Indonesia.

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Abstract:Problems have been faced by the people of most developing countries to fulfil their daily demands for water in terms of quantity and quality. To overcome this, they have been trying to seek for alternative sources and integrate them so that the adequate requirement is fulfilled or in the absence or low performance of one, the others can be relied on. In Yogyakarta city, the coverage of the piped water supply is quite low so some portion of the population relies on groundwater wells while some households use both the sources as the short comings of one can be fulfilled by the other. Though the perceived quality of groundwater scored better than piped water, laboratory tests have shown groundwater to be contaminated by bacteria. While in the other hand over-abstraction of groundwater has resulted in the decreasing water level. Health and environment being equally important, impacts on both have to be reduced; only that impact on the former is noticed immediately while on the latter it takes time but is irreplaceable. To minimize these impacts, the performance of the piped water supply has to be upgraded and awareness is to be raised among the citizens. The complexity of this problem can be solved by the introduction of a practical measurement strategy - performance assessment. In which a performance measurement framework is developed where the perceptions of the stakeholders are in-corporated considering the causes and effects, and goals are set. Performance criteria and indicators are chosen according to the existing condition and selected parameters. To analyze the performance spatially, performance indices are developed by the chosen criteria and indicators, and Spatial Multicriteria Evaluations (SMCE) was performed at the household level by giving different weights to the criteria and indicators. Criterion maps and Composite Index Maps (CIM) were developed which showed different performance patterns spatially. Some parameters were compared with the standards showing the overall performance. Thus, a base-line can be developed and by informing related stakeholders necessary awareness can be created among them, which help towards improving the performance and leads towards goals achievement. Key words: Water supply, Performance assessment, Framework, Criteria, Indicators, SMCE, Benchmarking
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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