Research on Fire Scenario Primitives in Subway Station based on Object-oriented thinking

Because of inherent characteristics of subway station, such as the complicated structure in the underground, the dense passenger flow and limited evacuation conditions, it may lead to unpredictable losses once the emergency occurs. The "scenario-response" model is considered as the most effective emergency management mode to deal with emergencies such as fires. Therefore, in order to analyze the fire scenario evolution network of subway station, we construct the fire scenario evolution primitives of subway station based on knowledge element theory in this paper. Moreover, an expression method of scenario evolution primitive is proposed based on object-oriented thinking, to further solve the problem of rational allocation of emergency resources at key nodes of scenario evolution network by computer technology. The fire scenario evolution primitives of subway station and the logical relationship among that are extracted from the four aspects of decomposition, abstraction, modularization and encapsulation of primitives. Finally, from the perspective of the real situation in the subway station, we instantiate the class of disaster body scenario evolution based on object-oriented thinking to verify the validity and applicability of proposed method.