From intermittent to continuous service: Costs, benefits, equity and sustainability of water system reforms in Hubli-Dharwad, India
From intermittent to continuous service: Costs, benefits, equity and sustainability of water system reforms in Hubli-Dharwad, India
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DOI：
10.1016/j.worlddev.2018.04.011
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发表时间：
2018-09-01
影响因子：
6.9
通讯作者：
Ray, Isha
中科院分区：
文献类型：
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作者：
Burt, Zachary;Ercumen, Aye;Ray, Isha
城市服务的提供处于从低成本、低质量、不可靠和间歇性到高成本、高质量、可靠和连续的连续统一体。印度的自来水服务通常属于前一类，但一些城市正在努力转向连续供水。我们使用配对队列研究设计来评估其中一项努力：在印度胡布里-达瓦德的一个试验区升级为连续供水服务，而该市其他地区仍处于间歇性供水服务状态。我们在15个月的时间里进行了四轮数据收集，对大约4000户家庭进行了调查。我们评估了家庭层面的净收益、分配的公平性和持续供水下的供水可负担性。我们还在系统层面(家庭和公用事业)对该项目进行了评估，估计了升级的净现值和扩大到整个城市的可行性。我们发现，家庭总体上获得了积极的净收益，但这些收益在社会经济阶层之间分配不均。我们还发现，作为扩大规模的必要步骤，增加供应的成本显著降低了项目的净现值。因此，扩大规模的潜力尚不明朗。(C)2018爱思唯尔有限公司。保留所有权利。
Urban service provision falls somewhere on the continuum of lower-cost, lower-quality, unreliable and intermittent to higher-cost, higher-quality, reliable and continuous. Piped water services in India are generally in the former category, but efforts are underway in some cities to shift to continuous supply. We use a matched-cohort research design to evaluate one such effort: an upgrade to continuous water service in a pilot zone of Hubli-Dharwad, India, while the rest of the city remained on intermittent services. We conducted a survey of similar to 4000 households with four rounds of data collection over 15 months. We evaluated the household-level net benefits, the equity of their distribution, and the affordability of water access under continuous supply. We also evaluated the project at the system-level (household and utility), estimating the net present value of the upgrade and the feasibility of scale-up to the entire city. We found positive net benefits for households overall, but uneven distribution of these benefits across socioeconomic strata. We also found that the costs of supply augmentation, a necessary step for scale-up, significantly reduced the project net present value. The potential for scale-up is thus unclear. (C) 2018 Elsevier Ltd. All rights reserved.