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Flood Resilient Cities : A Syntactic and Metric Novel on Measuring the Resilience of Cities against Flooding, Gothenburg, Sweden

机译:防洪城市:衡量城市抗洪能力的句法和度量小说,瑞典哥德堡

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摘要

Flooding is one of the most destructive natural disasters which have rapidly been growing in frequency and intensity all over the world. In this view, assessment of the resilience of the city against such disturbances is of high necessity in order to significantly mitigate the disaster effects of flooding on the city structures and the human lives. The aim of this paper is to develop a method to assess the resilience of a river city (the city of Gothenburg in Sweden), which is prone to flood Hazard, against such disturbances. By simulating flood inundation with different return periods, in the first step, the areas of impact are determined. To assess the resilience, two different methods are followed. One is a syntactic method grounded in the foreground network in space syntax theory and the other is based on measuring accessibility to the essential amenities in the city. In the first method, similarity and sameness parameters are defined to quantitatively measure the syntactic resilience in the city. In the next step, accessibility to amenities and the minimum distance to amenities before and after each disturbance is measured. The results, in general, show that such disturbances affect the city structure and the resilience of the city differently. For instance, the city is more resilient after flooding ac- cording to accessibility measures. This clearly means that the answer to the question of resilience is mainly dependent on “resilience of what and for what.”
机译:洪水是最具破坏性的自然灾害之一,在世界范围内其频率和强度都在迅速增加。因此,为了显着减轻洪水对城市结构和人类生活的灾害影响,非常有必要评估城市抵御此类干扰的能力。本文的目的是开发一种方法来评估易受洪水危害的河流城市(瑞典哥德堡市)的抵御能力。通过模拟具有不同返回期的洪水淹没,第一步,确定影响范围。为了评估弹性,采用了两种不同的方法。一种是空间语法理论中基于前景网络的句法方法,另一种是基于对城市基本设施的可访问性的度量。在第一种方法中,定义相似性和相同性参数以定量测量城市中的句法弹性。在下一步中,将测量每次干扰之前和之后对设施的可及性以及与设施的最小距离。总体而言,结果表明,此类干扰对城市结构和城市弹性的影响不同。例如,由于无障碍措施导致洪水泛滥之后,这座城市变得更具弹性。显然,这意味着对弹性问题的答案主要取决于“对什么以及针对什么进行弹性”。

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