The relationship between condition and traffic accidents of urban road intersections in the cold region

More than one thousand traffic accidents scene sketch of Harbin intersections in the cold region in recent five years are analyzed and studied. Through analyzing accidents scene sketch, combining accidents scene with road traffic condition, the relationship between intersection condition and traffic accidents of urban road in the cold region is established, and urban road intersection safety assessing method is presented. According to the circumstances of road, traffic condition and traffic accidents, using synthetic influencing coefficient method, synthetic influencing coefficient λ is set up. After initial validating, it is proved that this method is credible and has the function reflecting level of intersection traffic safety, and also can predict the accidents value of some intersections. The results have objective meaning on rational assessing and optimizing designing of urban road intersection.