“…Especially, Petri nets (PN) seem to be suitable for those purposes. In [4], the place/transition Petri nets (P/T PN) [16,17] were used in agent-based modelling of the evacuation process. Concisely said, P/T PN are bipartite-directed graphs P, T, F, G with P, T, F, G being, respectively, the set of places (the first kind of the graph nodes), the set of transitions (the second kind of the graph nodes), the set of the edges (directed arcs) from the places to the transitions and the set of edges from the transitions to the places.…”