| 지방중소도시의 누수관리방법에 대한 효율성 평가 |
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학술지명 대한상하수도학회
저자 황진수,최태호,구자용,김기범
발표일 2021-04-30
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This study set up the estimates of leakage management efficiency evaluation and leakage management goal thatcould be used in local water distribution networks efficiency business and modernization business. The data wereanalyzed using data envelopment analysis and multiple regression analysis. To this end, with leakage managementinput indices concerning leakage reduction activities (e.g., aged pipe replacement, water meter replacement, leakagerestoration, and leakage detection) and leakage management calculation indices (e.g., the increase of revenue waterratio and the reduction of leakage ratio), the data on 22 K-water consignment local water supply systems wereanalyzed for the years from 2004 through 2018. Using the results of efficiency analysis by data envelopment analysis,the other DMUs (Decision Making Unit) benchmarked the DMU with the highest efficiency to maximize the leakagemanagement efficiency for all DMUs. Through this, leakage management goal estimates were drawn with the inputindices of four leakage reduction activities and calculation indices of the increase of revenue water ratio and thereduction of leakage ratio by multiple regression analysis for each group based on the revenue water ratio and leakageratio. The correlation coefficients of the leakage management goal estimate for the criteria for the revenue waterratio amounted to 0.553 and 0.771. The correlation coefficients of the leakage management goal estimate for the criteria for leakage ratio were 0.397 and 0.865. Accordingly, we estimated the quantity and priority of four leakagereduction activities for the target leakage ratio and revenue water ratio. |