Mixing effects model on relationship between braking pedal velocity and physiology of drivers

Eight drivers were selected with ages between 35 and 48. Electrocardiograph, Frecord data collecting system and dynamics GPS were utilized to study the drivers' behavior on braking pedal velocity and physiology in emergency. The mixing effects model between braking pedal velocity and physiology, which is affected by obstacle distance, driving velocity, driving time, and personality, is established to study their relationship. The results indicate that the distance between the vehicle and obstacle has more important influence on the greatest braking pedal velocity than that of driving speed. The study provides a new method for the drivers' behavior analysis under emergency.