抄録
Simultaneous occurrence of fires is one of the characteristics in an earthquake. Fire-fighting activities according to the extinguishing priority are important in order to minimize the damage, because the capacity of fire-fighting force is limited. In this study, the system to assign the order of extinguishing priority to the houses on fire is developed, in which the damage such as the number of collapsed houses, household units and burnt area is to be minimized. Based on the simulation of urban spreading fire using Petri-net, the order of extinguishing priority is determined by the comparison of effect by extinguishment of each house on fire. The movements of spreading fire and the effect by extinguishment, which change with time, can be expressed visually.
