Research On Stress Driving Behavior Of Drivers With The State Of Anxiety

Alone with economic and social development in China,the number of private cars are steep rising,road congestion phenomenon is more and more serious,coupled with the pressure of the work and life,there are more drivers' anxiety tend to be produced.While the bad feelings are amplified in the process of driving,serious traffic accident will be produced frequently,therefore,research on the driving behavior with the state of anxiety appears particularly important.The study provides initial insight into high level anxiety group and low level anxiety group of drivers' operation data.Based on the compares and analyzes of two group data obtained,the driving behavior pattern of the high level anxiety drivers' could be discovered.With a view to improve the driving safety by effective means of operation fast and steadily under the premise of grasping their common characteristic.The research content in this paper is as follows:First,evaluation questionnaire are designed to test the driver status.According to the characteristics of driver's culture in China,drivers' trait anxiety self-assessment scale,driving skills self-assessment scale,the driving risk-taking behavior self-assessment scale and stress self-assessment scale were established to evaluate the driver's driving condition.In the earlier stage,a total of 152 drivers completed the scale,the reliability and validity of the scale were calculated to ensure favorable stability and internal consistency.Statistical results showed that there were significant difference between two groups of drivers in driving skills scale's factor irregularities,sports awareness and decision;The factor aggression in dangerous driving behavior existed significant differences;it showed that the two kinds of drivers' self-cognition of driving behavior is distinct.Second,engineering experiment was carried out to confirmed that whether there will be difference in attentional bias.Including the distribution of attention,the span of attention,the focus ability of attention,visual reaction ability and spatial perception ability test.Previous studies have found that high anxiety drivers' attentional bias will be different,the results confirmed this conclusion partly.The test results show that there was differences in the distribution of attention test between the two driver groups,there was no difference in the others.Finally,the driving simulation experiments was to explore the operating characteristics with the state of anxiety.Based on the simulation scene builded by the UC-win road software and high precision control of driving simulation,combined with the eye movement instrument and MP150,52 tester which pass by anxiety subjective evaluation and objective evaluation were conducted an experiment,collect data and evaluate their operation ability under the emergency state.The results showed that high anxiety group of drivers' brake reaction time were longer than low anxiety group,the fluctuation range in turning is bigger,the strength when trampling the brake pedal and the accelerator pedal were higher than the low anxiety group slightly.In terms of visual features,there was obviously a characteristics that high anxiety group pay too much attention to the cab and ignore the left of the front.On the physiological indicators,brain energy parameters show that high anxiety groups had a higher mental load,and MRR indicators was lagging 5s.The finding in this study have important theoretical and practical impact for revealing the drivers' operating mechanism with the state of anxiety,reducing the group the crash involvement...