Improving the Reliability of Water Service Delivery in Rural Kenya through Professionalized Maintenance: A System Dynamics Perspective,Environmental Science & Technology

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Improving the Reliability of Water Service Delivery in Rural Kenya through Professionalized Maintenance: A System Dynamics Perspective
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2022-11-23 , DOI: 10.1021/acs.est.2c00939
Pranav Chintalapati ₁ , Cliff Nyaga _{2,

3} , Jeffrey P Walters ₄ , Johanna Koehler _{2,

5} , Amy Javernick-Will ₁ , Rob Hope ₂ , Karl G Linden ₁

Affiliation

Reliable water service delivery continues to be a complex global issue that is particularly challenging in rural communities. Despite billions of dollars of infrastructure interventions, sustainable water services remain out of reach for millions of people. Professionalized maintenance services have emerged as a service provision strategy to supplement the community-based rural water management approach. This study applies system dynamics modeling to assess the potential impact of scaling up professionalized maintenance services on piped water systems in Kitui County, Kenya. The study results show that over a 10 year simulation, calibrated with 21 months of empirical data and based on a range of key assumptions, delivery of professionalized maintenance services across the county may increase countywide functionality rates from 54% to over 83%, leading to a 67% increase in water production. Furthermore, the increase in preventive maintenance activities and proactive repairs can lead to less frequent major breakdowns and reduction in county government spending on major repairs by over 60%. However, current service fee income from communities accounts for 8% of the total cost of service, necessitating substantial sustained external financing or government subsidies to be financially viable at scale.

中文翻译：

通过专业化维护提高肯尼亚农村供水服务的可靠性：系统动力学视角

可靠的供水服务交付仍然是一个复杂的全球性问题，在农村社区尤其具有挑战性。尽管投入了数十亿美元的基础设施干预措施，但数百万人仍然无法获得可持续的供水服务。专业化维护服务已作为一种服务提供策略出现，以补充以社区为基础的农村水资源管理方法。本研究应用系统动力学模型来评估扩大专业化维护服务对肯尼亚基图伊县自来水系统的潜在影响。研究结果表明，经过 10 年的模拟，使用 21 个月的经验数据进行校准并基于一系列关键假设，在全县范围内提供专业化维护服务可能会将全县的功能率从 54% 提高到 83% 以上，导致产水量增加 67%。此外，预防性维护活动和主动维修的增加可以减少重大故障的发生，并将县政府用于重大维修的支出减少 60% 以上。然而，目前来自社区的服务费收入占服务总成本的 8%，需要大量持续的外部融资或政府补贴才能实现规模化的财务可行性。

更新日期：2022-11-23

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