Are we planning blue-green infrastructure opportunistically or strategically? Insights from Sydney, Australia

IF 2.3 Q3 ENVIRONMENTAL SCIENCES Blue-Green Systems Pub Date : 2021-12-04 DOI:10.2166/bgs.2021.023
M. Kuller, David J. Reid, V. Prodanovic
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引用次数: 7

Abstract

Strategic placement of water-sensitive urban design (WSUD) is essential in optimising its performance and maximising co-benefits. However, little is known about the current placement and interconnectedness between WSUD assets and the performance of current planning strategies. We evaluated the placement of existing WSUDs in a highly urbanised catchment in Sydney, Australia. We used a three-step process: (1) compiling a comprehensive spatial asset database, (2) performing spatial correlation analysis between asset locations and biophysical, urban form and socioeconomic variables and (3) using a novel approach to facilitate holistic understanding through analysing asset locations compared with the outcome of the spatial suitability analysis tool (SSANTO). WSUD coverage was generally low, with clustering in some municipalities. Placement was constrained by physical variables, such as slope, limited space and varying land uses. However, placement was not detectably influenced by most socioeconomic variables. SSANTO's suitability score at asset locations was only slightly higher than average, suggesting that the placement of existing WSUD was opportunistic, rather than strategically planned. Further development and implementation of tools able to account for spatial constraints will help guide future WSUD placement as a component of green urban stormwater management.
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我们是在机会主义还是战略上规划蓝绿色基础设施?来自澳大利亚悉尼的见解
水敏感型城市设计(WSUD)的战略布局对于优化其性能和最大化协同效益至关重要。然而,人们对WSUD资产与当前规划策略之间的当前位置和相互联系知之甚少。我们评估了在澳大利亚悉尼一个高度城市化的集水区现有wsud的安置情况。我们采用了三个步骤:(1)建立一个综合的空间资产数据库;(2)对资产位置与生物物理、城市形态和社会经济变量之间的空间相关性进行分析;(3)通过将资产位置与空间适宜性分析工具(SSANTO)的结果进行比较,采用一种新的方法来促进整体理解。WSUD的覆盖率普遍较低,在一些城市聚集。布置受到物理变量的限制,如坡度、有限的空间和不同的土地用途。然而,安置不受大多数社会经济变量的明显影响。SSANTO在资产位置的适合性得分仅略高于平均水平,这表明现有WSUD的放置是机会主义的,而不是战略计划的。进一步开发和实施能够考虑空间限制的工具,将有助于指导未来WSUD作为绿色城市雨水管理组成部分的布局。
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来源期刊
Blue-Green Systems
Blue-Green Systems Multiple-
CiteScore
8.70
自引率
0.00%
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0
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