Estimation of road vulnerability criteria for vehicle overturning hazard impact assessment

Impact forecasting means providing information on potential socioeconomic risks according to weather conditions, away from the existing weather factor-oriented forecast. The importance of impact information-based forecasting services that can support decision-making to reduce damage from weather disasters is being emphasized by the World Meteorological Organization. In countries such as the United States and the United Kingdom are investing manpower and finance in technology development to provide and spread impact information, but awareness of impact forecasts has not spread in Korea. In addition, the focus is on disasters such as floods and typhoons, which cause a lot of damage to the impact forecast, and research on vehicle risk impact assessment due to strong winds in the transportation sector, which is relatively less damaged, is insufficient. In Korea, there are not many cases of damage to vehicle conduction due to strong winds, but there are cases of damage, the need for research is increasing, and it is insufficient compared to advanced countries. In order to assessment the risk of a vehicle due to strong winds, road vulnerability, high wind strength, and vehicle exposure are required, and the purpose of this study is to calculate the criteria for road vulnerability, which is a risk assessment factor of a vehicle. Road vulnerabilities were presented by dividing them into minimal, minor, significant, and severe through density analysis, and verification was conducted by substituting them for past damage cases. It is judged that the results of this study can be used as a criterion for preparing an objective evaluation of potential risks for vehicle drivers.

Acknowledgments This research was support by a (2022-MOIS63-002) of Cooperative Research Method and Safety Management Technology in National Disaster funded by Ministry of Interior and Safety(MOIS, Korea).