Description
Hong Kong and Singapore are two typical Asian coastal cities which have suffered from natural disasters especially the risk of flooding. There is a growing awareness of the enormous risks that flooding poses to cities. The extent of flooding depends largely on the street networks and community resilience. This paper aims to discuss the connection between street networks and community resilience in coastal Asian cities. Additionally, this paper focuses on analyzing the resilience ability of Hong Kong and Singapore communities through an investigation of how street networks can improve the community resilience and comparing the key characteristics of the street topology such as centrality and connectivity in effectively facilitating resilience during coping with flooding. The research methods contain the realistic circumstance application of topology and ArcGIS Map software. The topology results expound a negative correlation between high betweenness centrality and the performance of community resilience. Meanwhile, large-scale centrality maps illustrate that augmenting the accessibility of emergency services can enhance community resilience during shocks and stresses. Furthermore, high connectivity can conduce to increase active and smooth transportation to provide equitable access to public services, which can also facilitate the development of resilient community. The results of the survey indicate that Singapore's street network is 20% higher resilient efficiency than that of Hong Kong in dealing with flood disasters. It is expected that further study of Singapore system will provide a reference for the street network design of other coastal cities in Asia to improve their community resilience.| Period | Jul 2021 |
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