Driving Behavior Characteristics And Models Under Vehicle-infrastructure Cooperation

Due to its complex,time-varying and random characteristics,the driving behavior is the application basis of the contemporary Intelligent Transportation System and of great significance of the safe driving under the modern transportation environment.As one of the representative new technologies,the emergence and development of the Vehicle-Infrastructure Cooperation may create conditions for real-time acquisition of vehicle position,speed,acceleration and peripheral roadside information,laying a foundation for real-time trajectory prediction,providing new design ideas for vehicle safety warning,and also putting forward higher requirements to driving behavior characteristics.Under the background of the rapid development of intelligent transportation technology,the paper put forward the "modeling and simulation of driving behaviors under the VIC environment",which was divided into seven chapters to elaborate the research content.The first chapter mainly introduced the research background and significance.On the basis of extensively researching the contents of VIC and driving behaviors at home and abroad,the research direction and the technology route of the paper were formulated.The second chapter grasped the key technologies covered by the VIC in the existing studies and used the existing technical resources to determine the experimental scene construction and data collection scheme.In the third chapter,through reviewing the driving behavior researches and analyzing the influence of the intervention of the VIC technology on the driving behaviors,the characteristics of the three typical types,which were car-following,lane-changing and overtaking,were expounded.Considering the similarity between molecules characteristic and the interaction relationship among vehicles,the VIC driving environment was taken as the research background in the fourth chapter.Through studying the single-lane vehicle following behavior,the desired safety space was proposed as an elastic variable,and the molecular dynamics model of driving behavior under the VIC environment was established.Analyzing measured data showed that the moleculardynamics car-following model was more suitable for the VIC driving environment.In the fifth chapter,based on the study of the single-lane car-following model,the research on the multi-lane lane-changing and overtaking interaction behavior was carried out.For the multi-lane driving complexity,the driving behavior characteristics were analyzed reasonably,and the desired safety space was used as the reference standard to construct multi-lane two type models.And the sixth chapter based on the established models,the simulation experiment and verification analysis were carried out for the statistics,with the results showing that the interactive behavior models constructed in this paper were more applicable and reasonable in the VIC environment.