A curve getting across the middle of the data set was acquired through the analysis of traffic safety data by the HS principal curve algorithm of unknown distributed data set.

• 通过未知分布数据集的HS主曲线算法对交通安全数据进行分析后,得到一条通过数据集合中间的曲线,来描述该数据集合的特征,以此作为执行管理标准的依据。