Inter-Utility Performance Benchmarking Model for Small-to-Medium-Sized Water Utilities: Aggregated Performance Indices
Inter-Utility Performance Benchmarking Model for Small-to-Medium-Sized Water Utilities: Aggregated Performance Indices
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DOI：
10.1061/(asce)wr.1943-5452.0000552
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发表时间：
2016-01-01
影响因子：
3.1
通讯作者：
Tesfamariam, Solomon
中科院分区：
文献类型：
--
作者：
Haider, Husnain;Sadiq, Rehan;Tesfamariam, Solomon
加拿大大约95%的供水系统由中小型水务公司（SMWU）运营，服务人口少于5万人。由于意识不足、数据可用性相关问题和财政限制，这些公用事业公司在国家水和废水基准计划（NWWBI）中的代表性几乎可以忽略不计。在目前的工作中，开发了一个公用事业间绩效基准模型（IU-PBM），该模型需要考虑水资源和环境、人员、实物资产、服务质量、水质和公共卫生以及财务方面的47个绩效指标（pi）。对于性能基准测试，已经建立了47个（线性、指数、对数和多项式）转换函数，将计算的pi转换为10到100之间的性能水平，这是基于文献、NWWBI报告和专家判断。权重的估计使用了一种特定的方法，该方法来自于对加拿大不列颠哥伦比亚省奥肯那根盆地不同水务公司的pi进行排名的文献，以及从事水基础设施管理的专家的意见。最后，通过使用与理想解决方案相似的顺序偏好技术（即，基于与最理想性能的相对接近度和与最不理想性能的距离的概念）聚合转换后的性能水平，建立了性能指数。u - pbm结果以网络图的形式呈现，向高层管理人员展示了实用决策的公用事业绩效。该模型还在Okanagan盆地的两个SMWU中实施，以评估其实用性。(C) 2015美国土木工程师学会。
About 95% of the water supply systems in Canada are being operated by small-to-medium-sized water utilities (SMWU) serving populations less than 50,000. The representation of these utilities in National Water and Wastewater Benchmarking Initiative (NWWBI) is almost negligible due to less awareness, issues related to data availability, and financial constraints. In the present work, an inter-utility performance benchmarking model (IU-PBM) is developed, which entails consideration of 47 performance indicators (PIs) for different functional components of SMWU, such as water resources and environment, personnel, physical assets, quality of service, water quality and public health, and financial aspects. For performance benchmarking, 47 (linear, exponential, logarithmic, and polynomial) transformation functions have been established to translate the calculated PIs into performance levels between 10 and 100, which is based on literature, NWWBI reports, and expert judgment. The weights are estimated using a specific method from the literature for ranking of PIs by different water utilities in the Okanagan basin, British Columbia, Canada, and opinions of experts working in water infrastructure management. Finally, performance indices have been established by aggregating the transformed performance levels using the technique for order preference by similarity to ideal solution (TOPSIS) (i.e., based on the concept of relative closeness to the most desirable performance and remoteness from the least desirable performance). The IU-PBM results presented in the form of a web diagram demonstrate the utility's performance to the top management for pragmatic decision making. The proposed model has also been implemented for two SMWU operating in Okanagan Basin to evaluate its practicality. (C) 2015 American Society of Civil Engineers.