Enhancing future resilience in urban drainage system: Green versus grey infrastructure

Xiang, Dong; Guo, Hao; Zeng, Siyu

doi:10.1016/j.watres.2017.07.038

Cited by 254 publications

(103 citation statements)

References 38 publications

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“…As this study only focused on the contour urban forms, some urban attributes that could also affect the performance of drainage systems, such as terrains and population distributions, were excluded from the research. Furthermore, the green infrastructures, being a cost-effective technology for rainwater systems as recognized by many studies [56], were also not considered in this study; the cities with selected urban forms may have different potentials with various green infrastructures either in increasing the economic feasibility and effectiveness in the sewer design stage or improving the adaptability after infrastructure renewal. As a result, it should be noted that all the conclusions in this study are limited to these simplifications, as well as the hypothesis made on the virtual cities.…”

Section: Discussionmentioning

confidence: 99%

Effects of Urban Forms on Separate Drainage Systems: A Virtual City Perspective

Jia

Sitzenfrei

Rauch

et al. 2019

Water

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The development of urban drainage systems is challenged by rapid urbanization; however, little attention is paid to the urban form and its effects on these systems. This study develops an integrated city-drainage model that configures typical urban forms and their associated drainage infrastructures, specifically domestic wastewater and rainwater systems, to analyze the relationship between them. Three typical types of urban forms were investigated: the square, the star, and the strip. Virtual cities were designed first, with the corresponding drainage systems generated automatically and then linked to a model herein called the Storm Water Management Model (SWMM). Evaluation was based on 200 random configurations of wastewater/rainwater systems with different structures or attributes. The results show that urban forms play more important roles on three dimensions of performance, namely economic efficiency, effectiveness, and adaptability, of the rainwater systems than of the wastewater systems. Cost is positively correlated to the effectiveness of rainwater systems among the different urban forms, while adaptability is negatively correlated to the other two performance dimensions. Regardless of the form, it is difficult for a city to make its drainage systems simultaneously cost-effective, efficient, and adaptable based on the virtual cities we investigated. This study could inspire the urban planning of both built-up and to-be-built areas to become more sustainable with their drainage infrastructure by recognizing the pros and cons of different macroscale urban forms.

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Section: Discussionmentioning

confidence: 99%

Effects of Urban Forms on Separate Drainage Systems: A Virtual City Perspective

Jia

Sitzenfrei

Rauch

et al. 2019

Water

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“…(2) Effectiveness of multiple NBS sites There are several studies which have evaluated the performance of multiple (or combined) NBS measures (see for example, Damodaram et al, 2010;Earthman et al, 2012;Huang et al, 2014;Luan et al, 2017). One of the most successful international projects in combining several NBS measures at the urban scale is the "Sponge City Programme (SCP)" in China.…”

Section: (1) Effectiveness Of a Single/individual Nbs Sitementioning

confidence: 99%

Nature-Based Solutions for hydro-meteorological risk reduction: A state-of-the-art review of the research area

Ruangpan¹,

Vojinović²,

Sabatino³

et al. 2019

Preprint

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Abstract. Natural hazards such as severe floods, storm surges, landslides, avalanches, hail, windstorms, droughts, heat waves and forest fires occur almost daily. This situation is likely to become worse given the projected changes in climate, degradation of ecosystems, population growth and urbanisation. The new concepts such as Ecosystem-based Adaptation, Green Infrastructure and/or Nature-Based Solutions have emerged as effective means to respond to such challenges. The present paper provides a critical review of the literature and identifies current knowledge gaps and future research prospects. There has been an explosion of scientific publications on this topic with a more significant rise taking place from 2007 onwards. Hence, the review process started by sourcing 1381 articles from Scopus which were also cross-referenced with the articles sourced from Web of Science and Google Scholar. The full analysis was performed on 159 closely related articles. The analysis confirmed that numerous advancements have been achieved to date. These solutions have already proven to be valuable in providing sustainable, cost-effective, multi-purpose and flexible means for hydro-meteorological risk reduction. However, there are still many areas where further research and demonstration is needed in order to promote their upscaling and replication and to make them become mainstream solutions.

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“…Similarly, the resilient city theory also emphasizes the importance of urban resilience ability, especially ecological resilience (Wagner & Breil, 2013). According to this theory, the core research of sponge cities lies in how to make cities more resilient (Dong, Guo, & Zeng, 2017). These studies provide scientific support for the concept of "eco-sponge" resilience.…”

Section: Introductionmentioning

confidence: 99%

“…Evidence can also be found in GI theory, in which the infrastructure of a city is divided into "Green" and "Grey" infrastructure (Kato, 2011). The former are those man-made substructures, and the latter are those substructures maintaining or restoring natural hydrology (Dong, Guo, & Zeng, 2017). By analogy, the former emphasize the sponge-like absorption function in the physical sense, namely sponge resilience, and the latter the ecological adjustment and recovery function, namely ecological resilience.…”

Section: Introductionmentioning

confidence: 99%

Eco-Sponge Elasticity and its Indices Developed to Assess the Performance of Infrastructure in Sponge Cities:

Zhu

2019

IRSPSD International

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In recent years techniques for assessing the "sponge city" concept in practice have been developed and diversified at a rapid pace, therefore a unified assessment framework based on sponge techniques is becoming more and more important for comparing and analysing the performance of different techniques across different sponge city projects. However, previous work has mainly focused on enhancing or developing a certain single sponge technique. This research tries to establish a framework through integrating the resilience of the natural ecosystem with that of engineered infrastructure of sponge cities, forming a new concept of 'Eco-sponge resilience', and quantifying 'Ecosponge Elasticity'. In particular, a set of elasticities with a unified dimension are developed. The eco-sponge elasticity mainly consists of five types of sponge elasticity and two types of ecological elasticity, including factors such as infiltration, storage, detention, transportation and decontamination, ecological vegetation and natural ecological water elasticities, with which the value of eco-sponge elasticity of a sponge city project can be easily estimated. This research also considers a case study to interpret how to assess the ecosponge elasticities of six pilot sites of sponge city projects in Xiamen. The result shows that the presented evaluation method is feasible and helpful for assessing and enhancing the performance of sponge cities considering four aspects: the water environment, water resources, water security and water ecosystem of the urban system.

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Enhancing future resilience in urban drainage system: Green versus grey infrastructure

Cited by 254 publications

References 38 publications

Effects of Urban Forms on Separate Drainage Systems: A Virtual City Perspective

Effects of Urban Forms on Separate Drainage Systems: A Virtual City Perspective

Nature-Based Solutions for hydro-meteorological risk reduction: A state-of-the-art review of the research area

Eco-Sponge Elasticity and its Indices Developed to Assess the Performance of Infrastructure in Sponge Cities:

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