Abstract: In order to reveal impacts of factors like passengers' luggage carrying behaviors, vehicle layout arrangement and platform exit parameters on evacuation of high-speed trains so as to facilitate its evacuation safety assessment and management, a physical model and evacuation model of business-class, first-class, second-class vehicles and whole compartment for CRH380AL were constructed based on PyroSim. Then, time distribution characteristics of passengers' luggage carrying were obtained through field observation of their alighting process, and input parameters of evacuation model were quantified. Thirdly, three simulation scenarios were designed to study influence of proportion of people with luggage on evacuation of second-class vehicle, that of first-class and second-class arrangement as well as exit width and position on evacuation of whole train. The results show that there is a nonlinear relationship, featuring decline first and then increase, between evacuation time of CRH380AL train's second-class vehicle and proportion of passengers with luggage. Compartment layout affects evacuation time of whole train distinctly, and there is an optimal layout arrangement. For platform exits wider than 6 m, their width has little effect on evacuation time of whole train. But platform exit interval has a significant impact on evacuation time which will be the shortest when interval is 200 m.

Key words: CRH380AL high-speed train, emergency evacuation, physical model, simulation scenarios, compartment