Dynamic system simulation of ships evacuation due to tsunami attack considering traffic density condition

摘要

Disaster mitigation is considered as important role to prevent number of potential loss due to hazardous accident such as tsunami, which is not only causing the raise of free surface but also strong horizontal water movement in a bay. Thus, an appropriate countermeasure is required for ships because the ship may be forced to move unexpectedly. In order to prevent and minimize such huge disaster happened, all vessels in Osaka bay have to evacuate immediately and safely to shelter area before tsunami arrival. The evaluation of time evacuation in shelter area is shown. In this paper, the dynamic system simulation (DSS) of vessels is carried out in order to evaluate the possibilities of such evacuation scenario.