Driver's Hazard Perception Modeling Of Lane-changing Process And Lane-changing Behavior Analysis

With the deepening of driving behavior research,driver's hazard perception has become research emphasis.Assessing driver's hazard perception ability actually investigate driver's ability to read road traffic scenes,that is,driver's ability to identify,predict and evaluate dangerous situations in different traffic scenes.In the study of vehicle lane-changing collision,by extract data such as vehicle trajectory,brake trace and scattered collision objects,use 3Ds Max to reproduced the traffic accident scenes,then analysis the potential danger and state in the scene,the driver's perspective of the potential hazard identification process et al,find out the main factors affecting the driver's lane-changing hazard perception,and establish the lane-changing behavior model.In summary,the main research work of this thesis can be summarized as follows:(1)Based on the intelligent swarm optimization model,the causes of collision accidents in vehicle lane-changing process were modeled.The results showed that the collision conflicts of drivers are mainly affected by the relative motion velocity between vehicles and the driver's hazard perception level in the process of vehicle lane-changing.According to the result of the analysis of the cause model of the collision accident,the driver's hazard perception level is selected for further research.By selecting the hazard perception factors related to the driver in the process of vehicle lane-changing,and then use Fault Tree Analysis,the main factors affecting the driver's hazard perception level in the process of vehicle lane change were obtained.(2)Through 3Ds Max three-dimensional modeling software modeled typical vehicle lane change traffic collision situations,then analyzed the potential dangerous state of traffic accident,the Fault Tree Analysis of the formation causes to potential dangerous state and the identification process of potential dangerous state from the driver's perspective.(3)The different driving styles combination driver's hazard perception in the lane change process model were constructed by the basic model of biological population survival under polluted environment,and the drivers were classified into driving styles and extracts their Car Log video.The results showed that:Drivers' hazard perception ability of lane change was closely related to the after target lane vehicle's driver driving style.There were obvious differences in the hazard perception level of different driving styles;the same driving styles combination drivers' hazard perception threshold limit value in the lane change process was negatively affected by the input rate of different traffic scene dangers and positively affected by drivers' hazard detection ratios and hazard reaction ratios,drivers with more experience than drivers with less experience had higher hazard perception.MATLAB numerical analysis results showed that:under the same traffic scene,different style combination driver whether changing lane had a hazard perception threshold value,when the driver's hazard perception level was controlled within the threshold value range,the vehicle change lane was more safety,otherwise be careful to choose lane change or maintain the original driving state.