基于公路运行速度设计的标准车型分类标准

为研究建立适用于公路运行速度设计的标准车型,通过对大量试验路段的实地交通调研,结合中国近10年的车型资料,建立了车型参数资料数据库;通过分析中国车型参数统计分布,采用阶段式多元综合聚类法对车型参数进行聚类;综合分析采集的车辆实际运行特征参数,通过应用聚类分析及速度-轴距分布分析,初步确定了以速度和轴距作为车型划分类别,并依据中国车辆轴距分布统计结果确定了基于轴距的车型划分标准。结果表明:汽车轴距、比功率是车型分类标准划分的重要指标;提出的用于中国双车道公路和一级及高速公路运行速度分析的车型分类标准对于公路运行速度设计有着重要的理论意义。

Standard Vehicle Type Classification Criteria Based on Highway Operating Speed Design

In order to establish the standard vehicle type for operating speed design,large amounts of traffic data were collected on trial road sections.Combined with vehicle type data for 10 years in China,vehicle type database was established.Applying staged multi-variable clustering method,vehicle parameters were clustered.Accordingly,through a synthesized clustering analysis of vehicle operating speed and axle base,the two factors were preliminarily determined as the vehicle classification criteria,and vehicle cl...