| With the improvement of social and economic level,people’s consumption travel gradually diversified.Large commercial comprehensive promotion activities,large outdoor festival activities,holiday scenic spot market in a short period of time overcrowded situation,make the city public management is faced with huge pressure.Channel design optimization is one of the most important means to solve pedestrian congestion in adult flow places.However,due to the complexity of the pedestrian flow itself,there is a lack of relevant theoretical basis on how to optimize the channel design according to local conditions.Through the pedestrian flow simulation software,this paper carries out research and analysis on the channel design under different circumstances.Firstly,this paper introduces the movement characteristics of pedestrian flow in the passage based on relevant research,and summarizes the relevant factors affecting the movement characteristics of pedestrian flow from the micro and macro aspects,mainly from the external environmental factors and individual pedestrian factors.Secondly,by applying Mass Motion software and referring to relevant research,when the velocity distribution of pedestrian flow is determined to be normal distribution,the channel design can be divided into three types.The changes of the movement state of the pedestrian flow with different flow sizes under the three ways of channel division were analyzed.The number of people passing in unit time and the maximum average density of pedestrian flow in the whole movement process were taken as the evaluation criteria.Compared and analyzed the bidirectional pedestrian flow path with different flow size and width,the best channel design method can be adopted.Finally,for the design method of two-way multiple crossable channels,the influence of crossable connection points on two-way pedestrian flow is analyzed.In addition,on the basis of the equal width division of the channel,the speed attribute of the pedestrian flow is changed,and the change of the movement state of the pedestrian flow is analyzed when the pedestrian flow has a single speed and different speed distribution.The simulation results show that the pedestrian flow with a single speed in the channel is more prone to congestion,and the width of the channel is the factor that affects the congestion of two-way pedestrian flow with a single speed.When the speed of two-way pedestrian flow has different distribution,the movement state of pedestrian flow is analyzed when the channel is divided into the same width,and the existing problems of the channel design are pointed out.Thus,the width of the channel is further divided according to the speed attribute of the pedestrian flow.After comprehensive comparison,it is concluded that the method of dividing the width of the channel according to the proportion of the number of pedestrian flow with mixed speed has the best control effect compared with other methods.Second through the literature research to obtain the actual place of numerical,modeling analysis,verified the big traffic situations,such as wide,divided into two-way two best channel channel traffic efficiency,line dividing channels help reduce traffic density,the article about the channel design will be the research conclusion and some literature research analysis of the contrast,enrich the research theory.Finally,this paper summarizes and looks forward to the full text,analyzes the shortcomings of this research,and looks forward to the next research direction,aiming to provide a reference for the subsequent related research. |
