城市道路同向窄路段车速统计特性研究  

Study on Statistical Characteristics of Vehicle Speed in Urban Narrow Road Section with the Same Direction

作　　者：韩宝睿[1] 宋婉璐 于晓妹 周玉 HAN Baorui;SONG Wanlu;YU Xiaomei;ZHOU Yu(College of Automobile and Traffic Engineering,Nanjing Forestry University,Jiangsu 210037,China;Jiangsu Jiaoke Energy Technology Development Co.Ltd.,Jiangsu 210000,China)

机构地区：[1]南京林业大学汽车与交通工程学院,南京210037 [2]江苏交科能源科技发展有限公司,南京210000

出　　处：《武汉理工大学学报（交通科学与工程版）》2020年第5期818-822,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家留学基金项目(201808320054);研究生培养创新工程项目(KYCX20_0887)资助。

摘　　要：车道窄化不仅可以减少用地,也是解决当前城市道路上车流速度不均、行驶无序的有效手段.文中通过选取代表性观测路段进行地点车速的采集,并与常规城市四车道车速离散性特征进行对比分析,证实了窄车道对于车辆车速具有约束作用,从而形成有秩序的排队车流.并实测窄道自由流样本车速,进行了K-S正态性检验及稳定性分析,证实了样本均值具备代表性.在原有结论基础上,得到了车道宽度与其自由流车速折减系数的高斯函数模型,并通过了与实测数据的显著性检验,最终得到了同向双车道条件下车道宽度为2.8 m时的自由流车速折减系数.Lane narrowing can not only reduce land use,but also solve the problem of uneven traffic speed and disordered driving on urban roads.In this paper,the representative observation road sections were selected to collect the local vehicle speed,and the discrete characteristics of vehicle speed were compared with those of the conventional four-lane cities.It is proved that narrow lanes can restrain the speed of vehicles,thus forming orderly queuing traffic.The vehicle speed of the narrow free-flow sample was measured,and K-S normality test and stability analysis were carried out,which confirmed that the sample mean was representative.On the basis of the original conclusion,the Gaussian function model of lane width and its free-flow vehicle speed reduction coefficient was obtained,and the significance test with the measured data was passed.Finally,the free-flow vehicle speed reduction coefficient under the condition of two lanes in the same direction was obtained.

关 键 词：城市交通 窄机动车道 统计分析 自由流车速 HCM 

分 类 号：U491[交通运输工程—交通运输规划与管理]