基于跟驰状态下车头时距的高速公路施工区通行能力计算  

Capacity Calculation of Construction Area of Expressway Based on HeadwayinFollowing State

作　　者：王树国 WANG Shu-guo(Hebei Expressway Group Co.Ltd.Jingqin Branch,Qinhuangdao 066003,China)

机构地区：[1]河北高速集团有限公司京秦分公司,河北秦皇岛066003

出　　处：《工程建设与设计》2023年第11期80-83,共4页Construction & Design for Engineering

摘　　要：通过对高速公路施工区交通流的调查,统计分析半幅封闭施工作业区和单向内侧车道封闭施工作业区的车头时距,依据跟驰理论筛选提取跟驰状态下施工区的最小平均车头视距作为饱和流率下的平均车头视距,提出基于车头时距分布的施工区道路通行能力方法,总结影响施工区通行能力大小的主要因素并验证了基于车头时距分布的施工区通行能力计算方法的适用性。Through the investigation of taffie flow of expressway construction area,stistial analysis of half closed working in the construction and inside of the unidirectional lane closed construction operation areas ofthe headway,screening based on the following theory isto extract the minimum average car following state construction area is stadia as under the saturation flow rate of the average car stadia,construction area is put forward based on the headway distribution of traffic capacity method,The main factors affecting the capacity of construction area are summarized and the applicability ofthe calculation method of capacity of construction area based on headway distribution is verified.

关 键 词：高速公路 施工区 跟驰理论 车头时距 通行能力 

分 类 号：U491[交通运输工程—交通运输规划与管理]