عنوان مقاله [English]
Water crisis and its management techniques in urban water supply systems is a crucial issue. Many different natural and unnatural disasters, including earthquake and terrorist attacks, cause the greatest damages to these systems. Before the crises occur, Prioritizing effective strategies by experts can greatly reduce these damages. In this study, Fuzzy PROMTHEE II method has been used for the ranking of Tehran City’s water supply risk management scenarios including prevention and preparedness in pre-crisis conditions, with consideration of experts’ opinions in Tehran Province Water & Wastewater Company. Due to the uncertainties in experts’ opinions and parameters required for urban water supply risk management, fuzzy theory is applied. The results show that the reliability of the water supply and cost of project implementation criteria have the highest importance, respectively. By ranking of scenarios, it was found that measures such as strengthening passive defense in supply and distribution systems, and consumption management and encouraging people to save the emergency water as well as contract with the companies producing water packaging with score of 0.192, 0.176 and 0.132, have the highest ranks among actions before the crisis, respectively. The proposed decision-making model can help decision makers to prioritize drinking water supply scenarios under the emergency conditions.
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