Development of a Hazard Mapping System Related to Meteorological Disasters

A new hazard mapping system related to landslides, strong winds, avalanches and rockfalls has been developed. Firstly, meteorological conditions, e.g. intensities of rain, wind and snow, are estimated based on meteorological simulation or meteorological statistics. Secondly, potential hazards for the railway system are evaluated with consideration of topographical factors calculated by using a digital elevation model. Finally, the evaluated hazards are mapped onto a geographical information system. This hazard mapping system is helpful for engineers to identify the locations where surveys need to be conducted and where countermeasures against the disasters need to be applied.