A Experimental Study On The Influence Of Carrying Luggage To Bidirectional Pedestrian Flows In Subway Station

The development of society is accompanied by the increasing level of transportation.Today,in the development of urban rail transit systems,subway construction has entered a prosperous stage.However,there are also corresponding risks in subway traffic.Accidents may occur in the subway under special conditions.Relevant research shows that the capacity of subway stations such as elevators,stairs and automatic gates is an important factor that affects the overall efficiency of subway stations.Especially in long straight passages,bidirectional convection crowds are prone to congestion and clogging.At present,the phenomenon of bidirectional pedestrian flow convection and its impact have attracted the attention of many scholars.At present,researchers mainly use experimental research,simulation research and algorithm research to understand and verify pedestrian movement characteristics and evacuation laws.However,the analysis of the impact of carrying luggage in pedestrian flow is very scarce.In this paper,the study of the kinematic characteristics of pedestrian flow in the passage is based on the actual situation of pedestrian travel in real life.The parameter of carrying luggage is introduced to design the interior experiment.The experiment describes the phenomenon of carrying luggage in the bidirectional flow from a macro perspective,which provides more experimental experience and data for future exploration.In this paper,it is found that carrying luggage has a certain impact on the speed,density and flow of pedestrians in the bidirectional flow passage,and the phenomenon of pedestrian flow stratification is more obvious.When only one side carries luggage,the longitudinal displacement difference of pedestrians is the largest,reaching 1-1.5 m.Although carrying luggage does not have a direct impact on the speed,it can change the movement characteristics of pedestrians by changing the interaction between people.When only one side carries luggage,it will have the phenomenon of "unequal avoidance",but carrying luggage does not completely break the movement law of pedestrians.In addition,the experiment also proves that the influence range and function of carrying luggage are different.When all pedestrians carry luggage,they will form a long-term blockage in the convergence area,and will have a secondary impact on the non convergence area in the rear.In addition,this paper also qualitatively analyzes the specific movement behavior characteristics of the pedestrian when carrying luggage,and in the experiment,the proportion of the pedestrian carrying luggage is divided in detail,and the effect of the total number of pedestrians and the change of the proportion of luggage is compared.Whether the proportion of people carrying luggage or the total number of people increases,it will lead to the increase of the extreme points,while the increase of the proportion of people carrying luggage has little effect on the value of time cycle b,but when the total number of people increases,the b value increases rapidly.In the process of the experiment,it is also found that there are potential leaders in the bidirectional flow.With the increase of the proportion of carrying luggage and the total number of people,the speed deviation of the potential leaders on the left and right sides is more and more big.Finally,this paper also explores the role of the shunt railings in the bidirectional flow channel.