ABSTRACT
To study the relationship between the driver's physiological characteristics and abnormal driving behavior characteristics at the entrance section of high-altitude expressway tunnel, the heart rate is used to characterize the driver's real-time physiological and psychological changes, such as tension and excitement at the entrance section of high-altitude tunnel, and the driver's driving behavior is reflected by the driver's manipulation of steering wheel, brake, and accelerator. Longitudinal acceleration represents the driver's control of steering wheel, brake, accelerator, etc. By comparing the real vehicle equivalent test, the center rate data and transverse and longitudinal acceleration data of the driver during driving in the entrance section of high-altitude highway tunnel, the entrance section of ordinary highway tunnel and ordinary highway section are obtained. Using statistics, this paper analyzes the variation in laws of center rate and transverse and longitudinal acceleration during driving at high altitude, ordinary tunnel entrance section, and ordinary expressway section. By analyzing the variability of transverse and longitudinal acceleration, we evaluate the transverse and longitudinal motion state of the vehicle, reverse analyze the abnormal operation of the driver on the steering wheel, brake, and accelerator, and find out the sections prone to abnormal driving behavior. Finally, taking the driver's heart rate as the influencing factor, the identification models of transverse and longitudinal acceleration at the entrance section of high-altitude tunnel (the section prone to abnormal driving behavior) are established respectively, so as to make a preliminary theoretical exploration for the identification and prevention of abnormal driving behavior at the entrance section of high-altitude expressway tunnel. The results show that compared with other test sections, the driving environment at the entrance of high-altitude expressway tunnel has a greater impact on the driver's heart rate, and is more prone to abnormal driving behaviors, such as turning the steering wheel and stepping on the brake and accelerator. Abnormal driving behavior mainly occurs from 275 m before entering the tunnel to 250 m after entering the tunnel.
