Exposure analysis of Chinese railways to multihazards based on datasets from 2000 to 2016,Geomatics, Natural Hazards and Risk

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Exposure analysis of Chinese railways to multihazards based on datasets from 2000 to 2016
Geomatics, Natural Hazards and Risk ( IF 4.5 ) Pub Date : 2020-01-01 , DOI: 10.1080/19475705.2020.1714753
Jing Zhao _{1,

2,

3} , Kai Liu _{1,

2,

3} , Ming Wang _{1,

2,

3}

Affiliation

Abstract Railway structures are endangered by natural hazards. A better understanding of historical railway disaster events and the exposure of railway infrastructures to natural hazards will facilitate railway planning and disaster risk management. This article compiles internet news to build the first database of Chinese railway disasters from 2000 to 2016. Based on the database, the temporal and spatial characteristics of main railway natural disasters and their driving factors are analyzed. By exploring the relationship between the railway disaster and hazard intensity, railway hazard susceptibility maps were generated. The results reveal that 34.35%, 1.91%, 18.22% and 7.18% of railway lines are exposed to very high hazard susceptibility values related to rainfall, gale, earthquake and tropical cyclone, respectively. A multihazard map was further developed based on the single-hazard maps, and we found that 15.10% of railway lines are exposed to very high multihazard susceptibility values. This is the first study to quantify the exposure of China’s railway to multiple natural hazards. The methodology and results provided in this study have profound significance for the disaster risk management of the Chinese railway system and provide useful experience for other countries.

更新日期：2020-01-01

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