River flood risk assessment for the Chinese road network

Yaliu Zhou; Kai Liu; Ming Wang

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River flood risk assessment for the Chinese road network

机译：River flood risk assessment for the Chinese road network

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Frequent floods substantially impact transportation infrastructure. This study assesses river flood risk to Chinese road networks by expected annual damage (EAD) and expected annual network efficiency loss (EAEL). The results show that the EAD of Chinese roads under river floods ranges from 2.04 to 3.42 billion USD, and the EAEL of 366 cities ranges from 0 to 31.0%o. The EAD high-risk cities are concentrated in areas of frequent flooding with high road network densities, while EAEL high-risk cities have relatively sparse roads and a high percentage of failed nodes and edges under river floods. For different income groups, the average EAD is the highest in the high income group, while EAD relative to the GDP and EAEL are the highest in the low and lower middle income groups, respectively, placing greater financial pressure on local governments. Our study provides an integrated view for assessing and managing road flood risk.

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《Transportation research, Part D. Transport and environment》 |2023年第8期|103818.1-103818.11|共11页
作者
Yaliu Zhou; Kai Liu; Ming Wang;
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作者单位

School of National Safety and Emergency Management, Beijing Normal University, Beijing 100875, China;

School of National Safety and Emergency Management, Beijing Normal University, Beijing 100875, China, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science & Technology;

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正文语种英语
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关键词
River flooding; Road networks; Economic damage; Efficiency loss;

River flood risk assessment for the Chinese road network

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