城市雨水系统的优化:一种多标准的方法,以实现可持续和成本效益的LID实施
Abbas Roozbahani1, Bardia Roghani2, Vegard Nilsen2
1Faculty of Science and Technology, Norwegian University of Life Sciences (NMBU), Ås, Norway
概括
优化城市雨水管理是减少洪水风险的关键. 一个新的框架平衡了成本,性能和可持续性,确定了雨水桶,生物保留电池和植被的组合作为最具成本效益的解决方案.
科学领域:
- 环境工程 环境工程
- 城市规划 城市规划
- 水资源管理 水资源管理
背景情况:
- 快速的城市化增加了不透的表面,导致全球城市洪水风险增加.
- 低影响开发 (LID) 实践减轻了城市排水,但最佳组合需要仔细考虑成本,性能和效益.
- 现有的方法往往缺乏全面的标准来评估LID的有效性,特别是关于更广泛的环境影响.
研究的目的:
- 开发和介绍一个全面的框架,以优化城市雨水管理系统.
- 整合模拟优化和多标准决策,以选择有效的LID策略.
- 引入新的标准,包括可持续性指数和植被LID覆盖面,以全面评估雨水管理选项.
主要方法:
- 开发了一个框架,将风暴水管理模型 (SWMM) 与城市风暴水处理和分析集成系统 (SUSTAIN) 模型进行模拟-优化.
- 整合了使用权重总和产品评估 (WASPAS) 方法的多标准决策模块.
- 评估了德黑兰11区的四个不同的LID场景 (绿色屋顶,雨桶,生物保留细胞,多孔路面,植被)
主要成果:
- 场景2,包括雨桶 (RB),生物保留细胞 (BC) 和植被 (VS),被确定为最有利的.
- 与其他评估的LID组合相比,这种情景显示出更高的成本效益.
- 虽然LID覆盖面的植被比其他两个场景低,但场景2提供了目标的最佳整体平衡.
结论:
- 拟议的框架为平衡城市雨水系统设计和管理的多个目标提供了一个实际的工具.
- 该研究强调了考虑成本效益以及改善空气质量和审美等环境效益的重要性.
- 这些发现支持通过优化LID选择促进可持续和成本效益的城市雨水管理实践.
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