Study On The Influence Of Export Guidance Setting On Pedestrian Evacuation Efficiency

In the large public places,due to the high density of pedestrian the frequent occurrence of stampede has become a typical public safety problem,and it is urgent to strengthen the research on the law of large pedestrian density evacuation.In this paper,the combination of experiment and simulation is used to study the influence of export guide setting — — rail setting on the evacuation of the crowd,and the corresponding railing optimization scheme is put forward to improve the evacuation efficiency of high density population.Respectively expanded study the three factors surrounding the rail: boundary rail length,guide angle of guide rail and compartment rail setting.In this paper,the globule flow with similar characteristics of high density population is used to carry out the experiment,and the EDEM simulation is used to study the regularity,supplemented by The Pathfinder large population evacuation scene verification,so as to obtain the general rule of influence of rail on pedestrian evacuation and reliable rail optimization program.The main conclusions are as follows:1.The length of boundary rail has no significant effect on the evacuation efficiency.The evacuation guidance angle degree has a significant effect on the evacuation efficiency.The evacuation time increase exponentially with the increase of evacuation guidance angle,the evacuation efficiency increases 2% with the evacuation angle degree increases 15°;the setting of compartment rail will adversely affect the evacuation,and the evacuation efficiency decreases with the increase in the number of the compartment rail.Appropriate increase the length of the compartment rail will alleviate the adverse effect,and there is an optimal effective length of compartment rail,which is 120% of the length of boundary rail approximately.2.Raise two reliable rail optimization program:(1)The guide rail optimization program:Add or change to a section of the acute angle of the boundary rail at the entrance of the railing,"funneling" the boundary conditions of export.(2)The compartment rail optimization program:in crowd evacuation scene existing compartment rail,it should be appropriate to increase the length of compartment rail.Appropriatly increase the length of compartment rail to diverse high-density flow of people in advance.