城市快速路互通立交合流区车头时距分布特性  

Time Headway Distribution Characteristics of Merging Area on Urban Expressway Interchanges

作　　者：臧晓冬[1,2] 周伟[3] 

机构地区：[1]北京工业大学交通工程北京市重点实验室,北京100124 [2]广州大学土木工程学院,广州510006 [3]交通部公路科学研究院,北京100088

出　　处：《北京工业大学学报》2010年第7期961-965,共5页Journal of Beijing University of Technology

基　　金：国家科技支撑计划资助项目(2006BAJ18B03);建设部科技项目(2008-K5-6)

摘　　要：为了分析城市快速路互通立交交织区对合流区车头时距分布的影响,根据广州市快速路半苜蓿叶互通立交的实测数据,研究了从交织区末端至合流区鼻端间的车头时距变化特性,以及城市快速路互通立交合流区的车头时距分布与高速公路合流区车头时距分布的差异,提出了用绝对值韦布尔函数模型拟合互通立交在交织区影响下合流区的车头时距分布特性的方法,通过图形模拟和数据检验,证明该模型的拟合效果良好.The time headway characteristics from the weaving area to the merging area are researched based on the actual data surveyed on a half-clover interchange in Guangzhou city for analyzing the influence of weaving areas on merging areas time headway distribution,and the difference between the time headway distribution in the merging area of the urban expressway interchange and that in the merging area of freeways is researched,then a absolute value WEIBULL distribution model is set up to simulate the time headway distribution of merging area under the influence of the weaving area on the merging area of urban expressway interchanges,after figure simulation and data test,the model is proved to be feasible by the figure simulation and data test.

关 键 词：交通工程 车头时距分布 合流区 城市快速路 互通立交 

分 类 号：U491[交通运输工程—交通运输规划与管理]