Study On The Characteristics And Technical Correction Methods Of Pedestrian Unruly Crossing Behavior In Main Road Section

As an important part of the road system,urban trunk road has a large number of lanes,wide road width,large flow and fast speed,resulting in longer time for pedestrians to cross the sections of urban trunk road and more prone to traffic accidents;At the same time,urban trunk roads play an important role in collecting and distributing traffic and connecting urban clusters.Pedestrians crossing the trunk roads at will is easy to have a serious impact on the smooth operation of urban traffic.Therefore,it is more and more important to study the safe crossing of pedestrians without affecting the overall operation efficiency of traffic flow on the trunk roads.Therefore,based on the existing crossing accident data,it is of great significance to select the investigation site to collect data,analyze the behavioral characteristics and psychological characteristics of pedestrians crossing the street,identify the key influencing factors of pedestrians crossing the street,and put forward corresponding technical correction methods to ensure the safety of pedestrians crossing the street and the efficient operation of main roads.Through statistical analysis of the time and location of pedestrian crossing accidents,selecting representative main road sections to conduct on-site investigation in different time periods to obtain the individual information,behavior information and other data of pedestrians crossing process by video shooting.Conducting supplementary investigation on the psychological factors of pedestrians crossing the street in the form of questions.Through the processed video data,the unruly behavior characteristics of pedestrians in the main road section before and during crossing the street are analyzed.Through the application of factor analysis and extended structural equation model,the psychological factors affecting the unruly crossing behavior are combined with the facility influencing factors,which are divided into four latent variables.The utility of each latent variable and measurement variable on the unruly crossing behavior of pedestrians is analyzed,and the key psychological factors affecting the unruly crossing behavior of pedestrians are obtained.In order to further explore the key influencing factors of pedestrian crossing,the significance test of correlation coefficient and multicollinearity test are used to preliminarily screen the main influencing factors of unruly crossing behavior in accident prone sections and non accident prone sections in video data;Binary logistic regression models based on the main influencing factors are constructed to analyze the impact of different regional factors on pedestrian crossing decision-making tendency.According to the analysis results of the two regions,a total of 11 key influencing factors of unruly crossing behavior are obtained,which are divided into 7 controllable causes.According to the types and causes of unruly pedestrian crossing behavior,this paper puts forward the connotation and classification of technical correction methods of unruly pedestrian crossing behavior.From the perspective of pedestrian willingness,self safety and traffic impact,the technical correction methods are divided into four types: conscious unruly crossing behavior correction methods,unconscious unruly crossing behavior correction methods,self safety hidden danger behavior correction methods and traffic delay induced behavior correction methods.From the aspects of correcting pedestrians’ wrong consciousness,strengthening pedestrians’ senses,cultivating correct crossing habits,reducing the risk of pedestrians’ unruly crossing behavior,and reducing traffic delays,a total of 10 specific technical correction measures are proposed,including the coordinated setting of pedestrian isolation facilities and guidance signs,sensory enhancement facilities,pedestrian crossing safety vehicles,yellow lights of crosswalk and waiting areas.In order to verify the effectiveness of technical correction methods,the paper firstly selects some evaluation indexes according to the interactive relationship between pedestrians and traffic system,then constructs the evaluation index system by using Delphi and factor analysis combination method,and establishes the combined evaluation model of technical correction through fuzzy analytic hierarchy process,critical method and fuzzy comprehensive evaluation method,finally uses the evaluation system and evaluation model to evaluate the correction effect.The evaluation results show that the adverse pedestrian crossing behavior after correction is less than before correction,and the effect of the combined correction method is better than that of the single correction method.Besides,"Crosswalk + isolation belt +crossing signal" has the best correction effect.The results show that the proposed technical correction method has a certain correction effect and can provide theoretical and technical support to traffic managers.