Simulation Of Subway Station Disaster Emergency Evacuation

The subway appeared greatly ease the ground transportation’s pressure, with itsconvenience, punctuality, carrying capacity, etc. become the preferred urban travel.However, the subway station is relatively closed environment coupled with a largenumber of people gathered in the subway station, in the sudden disasters, if nothandled properly will inevitably result in tragic casualty. To this end, public securityscholars to carry out extensive research to evacuate the subway, but most of theresearch is to model and fire personnel in the model independent situation, ignoringthe effects of fire on the officers. The paper will be introduced into the model fireevacuation scenarios to study the evacuation problems in different sources of ignitionconditions. Taking Shanghai subway station, Xizhimen subway station and the "工"type subway station for the study background, the subway station emergencyevacuation in case of fire were studied. In order to facilitate in-depth analysis of thefire and evacuation of personnel in the show as well as the interaction behaviorbetween people of the subway platform, using the Java language to build a subwayfire evacuation simulation model. Research ideas using geographic informationsystems, the use of cellular automata principles established staff model, which is usedin the evacuation path algorithm Dijkstra shortest path algorithm.This paper selects a Shanghai subway station, Xizhimen subway station and the "工" type subway station for the study, the use of statistical simulation modelestablished evacuation time and status information officer stops, including: securemobile number, the number in danger, trapped persons and deaths. First simulatedevacuation of the three sites being affected by the fire when analyzed the impact ofthe complexity of the subway station for the evacuation of the building structuregenerated. For further three sites were simulated in the case of one, two and threerandom source of the fire evacuation scenarios. Quantitative analysis of the fire source and location of the number of points for the evacuation of influence, andfinally discusses the issue evacuation route selection, the evacuation of the abovescenarios were simulated100times,1,200times in total. The study found:(1) Withthe subway platform increases the complexity of building structures, evacuation willcause more obstruction; number and location will affect the export of evacuationeffect.(2) Effect of the source of fire by the number of points on the evacuation of thediscovery: Increase the number of point sources of ignition exacerbate the extent ofcasualties evacuated personnel.(3) The position of the fire source in the evacuation ofpersonnel on that: the weakest position of the ignition point is located farthest fromthe exit area, and the most negative point is located near the outlet of the fire andpersonnel congestion prone areas.(4) Selection of evacuation path, clear that underthe specific location of the fire source, the familiar Railway Station exit locationsecurity personnel a chance to escape. Finally, based on the above conclusions,preliminary targeted solutions for the construction of the building anddecision-making departments subway station provides a reference for thedevelopment of emergency plans.