Abstract: The Shanghai high-speed railway is an operation mode of intercity trains and subway trains running on the same line. Through numerical simulation, the available safe evacuation time and necessary safe evacuation time under different ventilation methods, fire source positions, and evacuation gap spacing are obtained, and the evacuation safety of personnel is analyzed, in order to provide decision-making basis for its safe evacuation facility installation plan. The research results show that the evacuation risk of subway train fire is greater than that of intercity train fire; when a fire occurs, the fire source of the train should be parked between the two evacuation openings as much as possible, and the tunnel should be ventilated and exhausted; the evacuation opening spacing is set to 300 m to meet the needs of the requirements for the safe evacuation of personnel on international trains and subway trains.

Key words: municipal high speed railway, tunnel fire, people evacuation, evacuation opening