A study of vulnerability of emergency transport road network to various hazards

The frequency of natural disasters in Japan has increased in recent times. To ensure smooth transport of goods in the event of a large-scale low-frequency disaster, a network of emergency transport roads has been designed in Japan. However, while the frequency and nature of accidents are diverse, the emergency transport roads have not yet quantitatively grasped the degree of risk a disaster carries. In this study, the risk of this road network is quantitatively evaluated while considering various hazards such as earthquakes, floods, landslides, tsunamis, volcanic eruptions, and storm surges