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城市快速路单车道车头间距的研究
引用本文:刘岩,邵岩.城市快速路单车道车头间距的研究[J].大连交通大学学报,2012,33(2):20-23.
作者姓名:刘岩  邵岩
作者单位:1. 大连交通大学交通运输工程学院,辽宁大连116028;吉林大学交通学院,吉林长春130025
2. 大连交通大学交通运输工程学院,辽宁大连,116028
摘    要:为了研究城市快速路不同车型在单车道自由流状态下车头间距分布现象,文章基于交通调查和系统数据采集的方法,通过统计分析解析了城市快速路单车道自由流车头间距分布规律,得出了自由流状态下城市快速路单车道车头间距符合负值数分布,不同车型之间的车头间距分布也不同的结论.利用数理统计的方法对实测数据进行分析处理,分析当前车为小汽车、后车为出租车时,车头间距较大;而前车为出租车、后车为小汽车时,车头间距较小,车头间距与流量成反比关系.

关 键 词:城市快速路  车头间距  分布规律

Study of Space-Headway Distribution of Single Lane Urban Expressway
LIU Yan , SHAO Yan.Study of Space-Headway Distribution of Single Lane Urban Expressway[J].Journal of Dalian Jiaotong University,2012,33(2):20-23.
Authors:LIU Yan  SHAO Yan
Institution:1(1.School of Traffic and Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China;2.College of Transportation,Jilin University,Changchun 130022,China)
Abstract:Based on traffic surveys and data collection methods,statistical analysis is used to study the urban expressway lane free-flow headway distribution,and the headway distribution is obtained with a negative number.By using mathematical statistical methods for analysis and processing of the measured data,it is determined that if the leading vehicle is a car and follwed by a taxi,the space headway is a larger,the space headway is smaller if leading vehicle is a taxi,followed by a car.Flow rate is inversely proportional to space headway.
Keywords:urban expressway  time headway  distribution pattern
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