2025 Volume 23 Issue 4 Pages 545-
In promoting waterproofing of urban areas, such as the conversion of houses to higher floors, objective rationality based on cost-benefit costs and other factors is required, but the analytical methods used for this purpose are vague. In this research, a simulator for predicting the effectiveness of urban flood proofing was established, and was applied to two case areas, and the limitations of the simulator were verified. As a result, we were able to present a cost-benefit analysis method based on currently available data, but there were significant limitations due to a lack of data on the performance of flood-resistant housing, frequency of flooding, and detailed depth of flooding. In the future, it will be important to expand data through contributions from various fields and to take a cross-disciplinary and integrated approach to flood countermeasures in the area that encompasses more than a cost-benefit analysis.
