混合交通中自行车对机动车行驶速度横向干扰分析  

Quantitative analysis of impact of bicycle on the vehicle speed in urban mixed traffic

作　　者：宋占国[1] 陈红[1] 赵丹婷[1] 马晓彤[1] SONG Zhanguo;CHEN Hong;ZHAO Danting;MA Xiaotong(School of Highway, Chang’an University, Xi’an 710064, China)

机构地区：[1]长安大学公路学院,陕西西安710064

出　　处：《铁道科学与工程学报》2017年第8期1783-1791,共9页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51208054)

摘　　要：为了更好确定混合交通中横向干扰对机动车行驶速度影响程度,明确对机动车行驶速度横向干扰的系数模型,定义了横向干扰及类型,将其划分为无干扰、摩擦干扰和阻滞干扰3种状态;通过对西安市典型路段进行实地调查获取横向干扰数据,定量分析不同横向干扰状态下,机动车行驶速度的变化趋势;以此为基础,确定不同干扰状态下对机动车行驶速度的干扰系数,以及不同干扰状态相变阈值。样本数据分析结果表明,3种干扰状态下,自行车对机动车行驶横向干扰程度存在显著差异,同时摩擦干扰和阻滞干扰状态下机动车行驶速度横向干扰系数模型显著不同。该研究成果能够有效判定自行车对机动车行驶速度的横向干扰程度,能够为设置机非隔离设施提供量化依据。In order to better determine the effect degree of lateral interference on vehicle speed in urban mixedtraffic and the coefficient model of vehicle speed,the lateral interference was defined,which were classified intothree groups:non-interference,friction interference and block interference.According to the lateral interferencedata obtained by the transverse field survey of Xi’an typical sections,quantitative analysis on speed trends ofvehicle at different lateral interference types was conducted.Based on this,the interference coefficients of vehiclerunning speed under different lateral interference types were determined,as well as the phase change threshold.Analysis results of the sample data show that,there are significant differences in the vehicle speed variations atthree lateral interference types,meanwhile friction interference and block interference with the state of the vehiclelateral velocity interference factor model is significantly different.The research results can effectively determinebike lateral extent of interference with the vehicle running speed,and it can provide a quantitative basis for settingmachine non-isolated facilities.

关 键 词：交通工程 混合交通 横向干扰 干扰类型 干扰系数 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]