Abstract
Based on the analysis of elderly driver's actual driving behavior, we classified unsafe driving behavior into 4 categories by focusing the consciousness and the intent. By extracting the causes of unsafe driving behavior, we develop quantitative index to discriminate the consciousness and the intent at an intersection where vehicles must stop temporarily on entering. Results of the experiments show the clarified that the maximum velocity and uneven reaction speed are selected as the quantitative index. Moreover, it is verified that 76.6% of the driving behavior about the consciousness and the intent were discriminated by the index.
