The planning strategy to improve the resilience of urban waterlogging prevention system based on normal-emergency functional composite utilization of space
The planning strategy to improve the resilience of urban waterlogging prevention system based on normal-emergency functional composite utilization of space
Under the background of frequent extreme rainstorms caused by global climate change,improving the resilience of waterlogging prevention system is an important way to coordi-nate the high-quality development and waterlogging prevention safety of megacities.In this paper,waterlogging risk is identified and the impact of disaster is evaluated under the extreme rainstorm scenario in central Beijing.From the perspective of spatial planning,normal-emergency functional composite utilization of space is provided as the key idea to improve the resilience of urban water-logging prevention system.The planning strategies are proposed to increase the flood discharge channel and storage space,which includes optimizing the layout of important facilities,full utiliza-tion of Blue-green Spaces,and using roads and underground space.Moreover,integration is en-couraged with waterlogging prevention facilities to increase emergency repair facilities and material reserve places.This study has provided a reference for improving the resilience of waterlogging prevention system in Beijing and other megacities.
维普
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