Resilient transport systems to reduce urban vulnerability to floods in emerging-coastal cities: A case study of Ho Chi Minh City, Vietnam
Resilient transport systems to reduce urban vulnerability to floods in emerging-coastal cities: A case study of Ho Chi Minh City, Vietnam
复制标题
DOI：
10.1016/j.tbs.2018.11.001
复制
发表时间：
2019-04-01
影响因子：
5.2
通讯作者：
Tight, Miles
中科院分区：
文献类型：
--
作者：
Phan Nhut Duy;Chapman, Lee;Tight, Miles
随着城市的发展，城市在空间上不断扩大，但在其地理范围内，复杂的活动使城市高度聚集，交通的作用变得越来越重要。世界各地城市的洪水事件暴露了交通网络的脆弱性，可能导致严重、持久的破坏。新兴沿海城市似乎忽视了这一点，尤其是容易发生洪水的城市，因为交通发展计划最终是由经济因素驱动的，导致不受控制的城市化。本文采用水文洪水建模和GIS分析相结合的方法，在当前交通发展规划的基础上，论证了胡志明市交通系统的脆弱性日益增加。本文强调需要考虑一种新的交通规划方法，并倡导应用弹性交通系统（RTS），该系统可以整合到城市总体规划的潜在修订中，以帮助胡志明市（HCMC）从抵抗极端洪水转向恢复能力。该概念的重点是基于预先组织的结构和灵活的运输系统的运输流的空间转移，该系统由不同高度和位置的链接、节点和相关服务组成。将其应用于交通规划的内在价值在于，一个城市可以保留其交通系统的一定容量（可能在较小的规模上），以减轻洪水中断对城市活动的潜在影响。
The role of transportation is becoming ever more important as cities are spatially expanded along with urban development, yet highly agglomerated by complex activities over their geographic territory. Flooding incidents in cities across the world have exposed the vulnerability of transport networks which can result in significant, lasting disruption. This appears to be overlooked in emerging-coastal cities, especially prone to flooding as plans for transport development, are ultimately driven by economic drivers resulting in uncontrolled urbanisation. By using a combined method of hydrological flood modeling and GIS analysis, this paper demonstrates the increasing vulnerability of the transport system in Ho Chi Minh City based on current plans for transport development. The paper highlights the need to consider a new approach to transport planning and advocates the application of a Resilient Transport System (RTS) which can be integrated into potential revisions of city master plans to help Ho Chi Minh City (HCMC) shift from resistance to resilience to extreme floods. The focal point of the concept is the spatial transfer of transport flows based on a pre-organised structural and flexible transport system constituted by links, nodes and relevant services in terms of different levels of elevation and locations. The intrinsic value of its application to the transport plan is that a city can retain a certain capacity (probably on a smaller scale) of its transport system in order to mitigate potential impacts on urban activities resulting from flood disruptions.