基于模糊聚类的快速路VMS信息发布方法

Information Issuing Method of VMS on Expressway Based on Fuzzy Clustering

将模糊聚类技术引入快速路上可变信息牌(VMS)的信息发布中,利用模糊聚类对3个交通流参数(流量、速度、占有率)进行分析,对快速路的交通状况进行划分与识别,从而为发布合理、有效的VMS信息提供依据。将快速路的交通状况分为3个等级,并选取聚类数目为3。计算聚类中心确定快速路的交通状况,VMS则将交通状况等信息发布给驾驶员。

The fuzzy clustering is introduced into information issuing problem of variable message signs.Three traffic flow parameters（flow,speed,occupancy）are analyzed using fuzzy clustering.Traffic flow situation on expressway is classified and recognized,and it provides the basis for issuing the effective VMS information.Traffic flow situation is classified into three categories,namely the clustering number is 3.Clustering centers are obtained and traffic flow situation is recognized.Traffic information is issued to the drivers through VMS.