Abstract
In order to constnict the countermeasures against flooding, a floodwater simulation model with a high degree of accuracy is required. We constnicted a new numerical simulation model in an urban residential area to apply a two dimensional shallow water model. This model employs the general curvilinear coordinate system to reproduce the road network and houses and considers the hydrodynamic force acting on the houses. We estimated the force by the experiments. The applicability of the model was verified by reproducing the results obtained from large scale hydraulic model experiments. Finally, the model was used to carry out case studies of actual urban districts and the countenmeasures were investigated.
