DRIVERS' HEART-RATE VARIABILITY EFFECTS OF HORIZONTAL ALIGNMENT OF EXPRESSWAY

With the development of expressway construction in China, designers and scholars in road traffic field gradual wake up that the essential purpose of expressway design should be ensuring drivers' safety. By analysis and driving tests, the research obtained the correlative model among augmentation of heart rate, radius of curve, operation speed and acceleration, and quantificational identified every index of expressway alignment meeting with mentality of drivers.