Abstract: In order to solve the hazardous problems and manage the difficulty in organization and implementation in case of fire, explosion, flooding, sudden large passenger flow and other emergencies during the real exercise of emergency response plans in metro stations, VR technology is applied to design scenarios and simulate emergency response plans. Firstly, business process modeling and notation (BPMN) language was used to model the process of emergency response plans. Secondly, building information modeling (BIM) technology was applied to create a three-dimensional model of the infrastructure in a metro station. The key technologies involved in plans for fire or explosion, terrorist attack, flooding and sudden large passenger flow were studied and simulated. Finally, with Yantang subway station as an example, the scenario design of an emergency response plan was carried out. The results show that the scenario design and process simulation based on VR technology integrates the elements of various scenarios, event process, passengers' and staff members' activities into the same platform, which can demonstrate the implementation effects of the plans visually and dynamically with multi-viewing panes, therefore helping enhance the application of emergency response plans in metro stations.

Key words: virtual reality (VR), metro station, emergency response plan, scenario design, large passenger flow simulation