earticle

영어

In order to investigate the impact of the optical illusion deceleration marking width on the change of the driver’s heart rate, the comb-tooth deceleration marking was employed as an example and fourteen drivers were tested through indoor simulation at the selected width of 20-50 cm. The changing rate of drivers’ heart rate was used as an indicator to evaluate the safety and comfort of the width of the optical illusion deceleration marking and then the regression model for the two was established. The results showed that on the road section with the operating speed of 80km.h-1, the drivers were getting more and more nervous and the absolute value of the changing rate of their heart rate was bigger and bigger with the increase of the marking width. Take the heart beat change rate of 20% as the threshold value of drivers’ tension and the safety and comfort of the width and calculate it based on the logistic regression model, it showed that the most favorable width of the deceleration marking was 42 cm. Under the same condition, the second round of test was conducted at the operating speed of 40-120 km.h-1. The drivers’ view was narrowed and vision was decreased with the increase of the operating speed, at this time, the drivers got even more nervous and the changing rate of heart rate increased accordingly.