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分析了现有的车头时距分布模型 基于对我国大量的双车道公路上运行车辆车头时距分布模式的调查 ,提出了改进的M 3型车头时距分布模型 ,推导出双车道公路无信号交叉口处当主车道车流车头时距服从改进的M 3型分布时次车道车流通行能力计算公式 ,得出了整个交叉口通行能力随主车道车流量的关系 ,从而可为交叉口的评价及应采取的管理措施提供依据
Based on the survey on the distribution pattern of the headway of vehicles running on a large number of two-lane highways in our country, an improved M 3 type headway distribution model is proposed and a two-lane road without signal crossing is derived At the mouth, when the headway distance of the main-lane traffic flow obeys the formula of traffic flow capacity of the next lane with improved M 3 -type distribution, the relationship between the traffic capacity of the whole intersection and the traffic flow of the main lane is obtained, Management measures taken to provide the basis