Simulation Research on Human Evacuation in Subway with a Single-point Fire Scenario

FDS+EVAC code is used to simulate the personnel evacuation in Nanjing Yangtze River Tunnel. When fire occurs in the middle of train. The train can choose to stop immediately in the tunnel or keep moving to the nearest station to evacuate passengers on condition of fire accident. The influence of emergency measures on evacuation was also discussed. The regularity of smoke flow, concentration of CO and CO2 and temperature distribution were calculated. Two kinds of evacuation models were proposed and validated. If the train breaks down because of fire and stops in the tunnel, the available evacuation program is fail to ensure passengers’ safety.