This article describes the hazards of speeding traffic,the driver of the speeding traffic reasons,motor vehicle speeding caused the accident causes and prevention of the speeding vehicle.

Traffic investigation at Hefei-Nanjing freeway shows that within two kilometers of the freeway entrance,one kilometer in front of toll plaza,on the vehicle climbing road section and on the heavy traffic bridge,the velocities of most heavy trucks and lorries are within the unexpected travel speed,which can bring significant influence on the service life of the asphalt pavement.