Study of the human evacuation simulation of metro fire safety analysis in China

Metro construction in China enjoyed and will continue to enjoy unprecedented development in the tenth 5 Year Plan period and the upcoming eleventh 5 Year Plan period. In China, cities are densely populated, and as a modernized urban rail transit means, metros have been undertaking increasingly important tasks of large passenger flow transportation, under which circumstance the injury and casualty will be enormous if an accident occurs. China's work safe laws and regulations have stipulated that safety evaluation must be carried out during planning, design, construction and operation of metros. As a part of the metro safety evaluation, occupant safe evacuation is a critical aspect to be assessed. This paper will first introduce the occupants evacuation design in the construction of metros in China based on Code for design of metro (CFDOM) (GB 50157-2003), including evacuation passage design, evacuation time and evacuation safe area as well as fire-engineering-based occupants evacuation design philosophy and calculation method. Finally, a computer simulation of the process of evacuation of occupants from deep buried metro station (DBMS) by using occupants evacuation dynamic model will be conducted on the example of DBMS of Guangzhou Metro Line 6, so as to study whether the occupants can be safely evacuated from DBMS in case of fire.