ABSTRACT

Water Shortage Risk (WSR) map is a tool to establish priorities to take actions in the management of Urban Water Supply Systems (UWSS). This work presents a methodology combining elements of Multi-Criteria Decision Analysis (MCDA) and Geographic Information Systems (GIS) to assess urban water shortage levels. The study case is Campina Grande, a Brazilian city which represents other cities of semi-arid with similar conditions, such as dry climate, water rationing periods and a mixed-income population. The WSR approach uses seven criteria, including hydraulic, socio-economic, and infrastructure and a set of weighted functions. The method used for weight allocation is the Analytic Hierarchy Process (AHP). Results show the WSR map as a dynamic tool, once it can be complemented with utility and operational data. The WSR map, combined with control variables, can be a planning instrument for automation and operational control and also for highlighting the inequalities in water supply services.

摘要

缺水风险（WSR）图是一种工具，用于确定在城市供水系统（UWSS）的管理中采取行动的优先级。这项工作提出了一种方法，该方法结合了多标准决策分析（MCDA）和地理信息系统（GIS）的要素，以评估城市缺水水平。该研究案例是巴西的坎皮纳格兰德市（Campina Grande），它代表了其他半干旱城市，条件类似，如干旱的气候，水的定量分配时期和混合收入人口。WSR方法使用七个标准，包括液压，社会经济和基础设施以及一组加权功能。权重分配的方法是层次分析法（AHP）。结果显示，只要可以将WSR映射与公用事业和运营数据进行补充，它就可以作为一种动态工具。WSR地图，