基于手机浮动车的高速公路平均路段行程速度提取技术

提出了一种新的高速公路路段行程速度提取技术。因为在提取过程中路段划分是高速公路手机浮动车数据提取的基础和前提,首先提出了基于Fisher聚类分析法的手机浮动车高速公路路段长度划分方法,并基于此方法建立了高速公路平均行程速度参数提取模型,最后利用SPSS软件对相关数据进行了聚类分析,并采用VISSIM仿真软件对高速公路手机浮动车进行了模拟。模拟结果表明,模型在交通数据采集时有很好的精度,具有一定的应用价值。

Extraction technology of road link mean speed on highway based on cell phone floating car

Road link travel speed can effectively reflect the state of freeway traffic flow,and its extraction technology is particularly important.During the extraction,the sections of the length of highway is the foundation and prerequisite for the floating car data from the phone.Firstly,the sections of the length of highway on phone floating car based on Fisher cluster analysis was introduced,and based on the method,the model of highway road link travel speed was established.Finally,SPSS software was used to perform the cluster analysis on related data.This algorithm was tested with the micro simulation tool VISSIM.The results indicate that model has a very good precision for data collection,so has a certain value of application.