Relationship between Road Safety Guarantee Level and Driver Safety Perception

It has become much important for the development of modern human being and sociality to research on the essential reason of traffic accidents and the effective countermeasures against them, then to raise the road safety. Through lots of observations and analyses of traffic accident conditions and the effects of persons and vehicles and road conditions in traffic system on traffic safety, it is found that the road safety guarantee level, driver safety perception and their fitness relationship are three important factors to the road traffic safety. Based on the definitions of the road safety guarantee level and driver safety perception, their basic models are established. The final conclusions are that road traffic safety needs the fundamental safety guarantee level of road and driver safety perception, and that the road safety guarantee level should be bigger than driver safety perception, moreover their level difference "1" is the ideal fitness in theory.