2025 Volume 81 Issue 16 Article ID: 24-16070
Heavy rainfall disasters have become more severe and more frequent due to climate change. For mitigating the damage caused by flood inundation, real-time monitoring of flood inundation conditions is necessary for appropriate evacuation. Focusing on vehicle traffic information, the purpose is to clarify the relationship between flood inundation and traffic information and propose a method of real-time flood inundation monitoring for suitable evacuation information. The result showed that there is a correlation between depth of 50cm or more and vehicle traffic condition, and at flooded road link, relative traffic speeds decreased. Finally, from the presence or absence of vehicles passing on the link, it is possible to estimate the extent of inundation on a regional standard mesh basis.
