Decentralized water collection systems for households and communities: Household preferences in Atlanta and Boston
Decentralized water collection systems for households and communities: Household preferences in Atlanta and Boston
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DOI：
10.1016/j.watres.2019.115134
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发表时间：
2019-12-15
期刊：
影响因子：
12.8
通讯作者：
Foreman, Maria Christina
中科院分区：
文献类型：
--
作者：
Lu, Zhongming;Mo, Weiwei;Foreman, Maria Christina
发展可持续和有复原力的水基础设施是城市地区确保长期供水和减轻水消费和城市发展负面影响的一项紧迫挑战。将集中式供水基础设施和分散式家庭供水设施结合起来的混合系统，包括雨水收集和中水回收，可能是城市地区更可持续和更具复原力的水管理的解决方案。了解家庭和社区对分散式供水设施的偏好，对于设计并最终推广和采用此类系统至关重要。在这项研究中，我们进行了一个离散选择实验，通过亚马逊土耳其机械，收集数据的家庭选择不同的分散式水设施设计在两个美国城市，亚特兰大，格鲁吉亚和波士顿，马萨诸塞州。基于对选择实验的反应，我们开发了一个潜在的阶级选择模型来预测家庭的分散系统设计功能的偏好，并研究社会经济和个人特征对异质阶级成员的影响。我们分别在亚特兰大和波士顿确定了六种主要的偏好类别，并评估了每种类别选择分散式供水设施的可能性。亚特兰大和波士顿的一些阶层对分散式供水系统有着相似的偏好，但这两个城市的社会经济和个人特征是不同的。我们发现，分散式供水设施的早期采用与邻居的采用呈正相关，水资源短缺的压力增加了家庭共享分散式设施的意愿。可视化的空间分布的类强调分散的水设施的早期需求可能会出现在低财产价值的社区，这创造了一个独特的机会，在水基础设施改造引入分散的水设施。我们的研究通过公民参与提供了一个框架，以了解社会需求，并为促进分散的水设施提供信息。(C)2019爱思唯尔有限公司版权所有。
Development of sustainable and resilient water infrastructure is an urgent challenge for urban areas to secure long-term water availability and mitigate negative impacts of water consumption and urban development. A hybrid system that combines centralized water infrastructure and household decentralized water facilities, including rainwater harvesting and greywater recycling, may be a solution to more sustainable and resilient water management in urban areas. Understanding household and community preferences for decentralized water facilities is important to inform the design and ultimately the promotion and adoption of such systems. In this study, we conducted a discrete choice experiment, via Amazon Mechanical Turk, to collect data on household choices of different decentralized water facility designs in two U.S. cities, Atlanta, Georgia and Boston, Massachusetts. Based on the responses to the choice experiment, we then developed a latent-class choice model to predict households' preferences of decentralized system design features and examine the influence of socioeconomic and personal characteristics on heterogeneous class membership. We identified six major classes of preferences in Atlanta and Boston, respectively, and evaluated how readily each class is likely to choose a decentralized water facility. Atlanta and Boston have some classes sharing similar preferences for decentralized water systems, but the socioeconomic and personal characteristics of these classes in the two cities are different. We found that the early adoption of decentralized water facilities is positively related to neighbors' adoptions and pressure of water scarcity increases households' willingness to share a decentralized facility. The visualization of spatial distribution of the classes highlighted early demand of decentralized water facilities is likely to emerge in low-property-value communities, which creates a unique opportunity for introducing decentralized water facilities during water infrastructure renovations. Our study provides a framework through citizen engagement to understand social demand and to inform the promotion of decentralized water facilities. (C) 2019 Elsevier Ltd. All rights reserved.