Experimental Study On Stress Response Characteristics Of Urban Road Drivers Based On Driving Simulator

The driving environment of urban roads is complex and varied,and there are direct causes of traffic accidents and drivers.Drivers must not only handle and decide traffic information,but also control vehicles and regulate the traffic environment.In the event of an emergency,if the driver can properly operate,there is a high probability that accidents will occur.Therefore,research on the characteristics of driver's stress response is helpful to grasp the current situation of the driver's operation,summarizing the methods and laws of hedging under common stress scenarios,guiding and correcting some wrong operations,and improving the driver's safe driving ability.Provide a theoretical basis for greatly reducing traffic accidents caused by drivers.The characteristics of the stress test determine that it cannot be carried out under the real road environment.This paper uses 3D modeling software to design and create typical urban stress scenarios.Based on this,the research and analysis of urban driver's stress response characteristics are carried out.According to the characteristics of urban traffic and the characteristics of urban traffic under different weather conditions,the common accident forms and causes are analyzed.Based on the principles of typicality and rich diversity,Multigen Creator is used to establish a three-dimensional scene model,and the external traffic is completed by combining City Traffic Simulator and VS2010.The car's control,designed eight common urban traffic stress scenarios,and finally combined with Vega Prime for graphics rendering drivers.The whole test process was carried out on a six-degree-of-freedom driving simulator.The Face LAB 5.0 eye tracker and simulator were used to collect the eye movement and behavioral data of the driver under different stress scenarios.Analyze the eye movements and operation data collected during the experiment,analyze the driver's overall line of sight distribution and differences under different stress scenarios,driver perception-braking time statistical analysis,maximum brake pedal force and maximum braking Data such as pedal effort time,steering wheel angle change,and successful hedging rate.The experimental data show that the gaze points in the driver's hedging process in the eight stress scenarios are mostly concentrated in the central view area of the lane;compared to the pedestrian or non-motor vehicle stress scene,driving under the vehicle stress scene The person's gaze point can return to the central area of the lane more quickly;in the face of stress events in eight stress scenarios,most drivers will take the form of braking to hedge;compared to other stress scenarios The perception of the driver at the intersection-the braking time is generally long and the data is highly volatile.Based on the statistical analysis of these data,the driver's hedging rules under different stress scenarios are summarized,and the theoretical basis for improving the driver's stress ability is provided.