Construction Technology And Application Of Simulation Platform In Driving Behavior Analysis

Drivers is the main part in a human - vehicle - road transport system, there is a big correlation between the operation behavior, cognitive characteristics, psycho-physiological state of drivers and traffic accident. However, as the above factors is difficult to obtain and the quantitative expression, in-depth studies are difficult to carry out. As information technology and imaging technology developing, virtual traffic simulation platform with using virtual reality and visual simulation technology become a powerful tool for solve the problem. Compared with other experimental means, the experimental platform for road safety based on visual simulation technology and virtual environment can not only complete control of experiments in environmental factors, efficient collect experimental data efficiently, but apply a safe environment for dangerous situation of responses of limits of human physiological, vehicle braking and collision, and have a low running costs. With the in-depth analysis of driving behavior choices under diffenent environments and instance of psychological and physiological, explore the incident mechanism, seek the best way to improve the traffic safety. Development Traffic Simulation Platform with driving behavior analysis function is necessary and feasible.The paper presents a study of driving behavior-oriented simulation platform design. Firstly, define the function and composition of the various parts of the platform. Based on the in-depth analysis of key technologies, built to achieve a simulation experiment platform. Secondly, focused analysis the features of parameter of driver safety features, analysis indicators of the selection of pre-acquisition. Lastly, use simulation platform to study the afternoon driving fatigue driving behavior, analys driver's physiological and psychological indicators changes. Full-text is divided into five chapters.The first chapter is the introduction part of the paper. Describes the research background, present status, study, research purpose and significance, as well as research methods and ideasThe second chapter focuses on the simulation platform architecture and implementation technology. Experimental platform includes vehicles, motion simulation. visual simulation systems, traffic simulation system and driver data acquisition analysis system. This chapter identified the various parts of the specific features and the means of achieving, the basic principles of system operation and implementation of processes. Considering the actual situation, design the hardware structure of an experimental platform. Finally, compose the driving behavior simulation platform.Chapter III focuses on the driving behavior characterization and collection method. Driving behavior consists mainly of two aspects, one is driver's physical and psychological individual characteristics, the other is driver's operating characteristics and the vehicle motion characteristics, collected indicators of driver's individual characteristics by Eyelink, Facelab4 and other equipment. Collecting driving behavior data by driving simulator. Finalize the assessment of driving behavior indicators and standards. Chapter IV is the driving behavior simulation platform for specific applications. Focused on study of fatigue of driving based on the experimental platform. Driving fatigue is one of the main incentives of traffic accidents, especially the emphasis on serious traffic accident. Statistical analysis experiment with physiological indicators of heart rate variability indicators, temperature indicators, eye movement and psychological indicators of degree of perception, perceptual speed, simple reaction time and attention span. Concluded that subjects cognitive capacity reduce with varying degrees, affect the driver's estimation on the road environment information, increase driving insecurity.Chapter V is a part of the paper summary and outlook. The main thesis of this chapter summarized the research work, analysis the inadequacy of paper, provide a follow-up research project.