In order to deeply study the motion behavior of vehicles in rear-end collision. Firstly, the vehicle rear-end accident model is established in PC-Crash simulation environment. Next, variables such as elative collision speed, offset degree, Rear end vehicle deceleration before collision and wheel turning angle were calibrated. Finally, the kinematic parameters such as vehicle acceleration, yaw angle and yaw rate of the vehicle are obtained. The research results show that when the bias degree is 20%, the yaw angle of rear end vehicle and rear end vehicle is the biggest, and it is easy to induce two types of traffic accidents such as rollover or crash fixtures. In addition, the larger the relative collision speed of the two vehicles, the greater the acceleration and the shorter the duration of collision. The research results can provide theoretical basis and data support for drivers' behavioral decisions.

CICTP