Abstract
In this paper, we proposed a scenario simulation system for evacuation planning in urban areas at earthquake based on Petri-net simulator. Firstly, we construct fundamental Petri-net models to describe four parts of evacuation scenario at earthquake and show they are easily refined, expanded by connecting Petrinet components, based on both commonness of them and driving rules of nets. Secondly, we construct obstruction nets brought by fall down of buildings and by fire spreading. Finally, we demonstrate several scenario simulations, and discuss necessity of evacuation drills imbedded obstructions coursed by quake.
