Orderly Clustering Division of Highways Considering The Accident Four Indicators

The division of highways is especially important for road management, information storage, maintenance, evaluation of safety and accident prediction. The existing research mostly divides the highway on the basis of road management, information storage, and maintenance instead of safety. This paper firstly summarizes the common methods of road division, analyzing their advantages and disadvantages. The four accident indicators can reflect the road safety comprehensively. The paper then analyses the highway division using Fisher orderly clustering in consideration of three factors, namely:(1) the number of accidents; (2) the number of deaths in road accidents per kilometer; and (3) the number of those injured in road accidents. Finally, the paper describes the detailed process with an example.