Research on pedestrian evacuation guidance strategy of subway transfer station considering the use of transfer channel
The safety management of transfer subway stations has attracted much attention because of its more complex structure and more serious interweaving of passenger flows.Taking a T-transfer subway station as an example,this paper constructs an emergency pedestrian evacuation model considering the utilization degree of the transfer channel based on the cellular automatic floor field model and designs pedestrian guidance strategies for the platform floor and the station hall floor respectively.It analyzes the effects of different evacuation strategy combinations on the emergency evacuation of pedestrians in the transfer subway station.For the no-guidance strategy,all evacuees freely choose their evacuation exits based on the field model.In both the platform floor guidance strategy and the station hall floor guidance strategy,the system provides the optimal exit choice for pedestrians.This paper focuses on the comparison of the two strategies of no guidance and considering both platform guidance and station hall guidance.It analyzes the improvement principle,as well as the influence of different evacuation numbers,different proportions of people on different platform floors,and different obedience ratios of pedestrians on the evacuation process.The results show that compared with the no-guidance evacuation strategy,the evacuation time under both platform guidance and station hall guidance is less,and the distribution of evacuees is more balanced.In the evacuation zone design that considers the utilization degree of the transfer channel,there is an optimal separation distance.The change in the total number of evacuees does not influence the optimal separation distance,but the distribution proportion of evacuees at each platform has a certain influence on it.When the percentage of pedestrian obedience ratio is not less than 90％,the optimal separation spacing does not significantly change.This work is helpful to the safety management of the dense crowd in the T-transfer subway station.
public safetypedestrian evacuationevacuation guidancesubway transfer stationfloor field model
万方数据
维普
