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混合非机动车交通流超车次率影响因素模型 被引量:9
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作者 周旦 马晓龙 +1 位作者 金盛 王殿海 《浙江大学学报(工学版)》 EI CAS CSCD 北大核心 2015年第9期1672-1678,共7页
为了明确城市共享非机动车道内超车事件数的统计特性,建立车辆超车次率影响因素模型,分析对超车次率产生影响的混合非机动车交通流特性参数与骑行人特征参数.结合杭州市的实测数据,采用统计回归分析方法分别建立全体车辆超车次率及电动... 为了明确城市共享非机动车道内超车事件数的统计特性,建立车辆超车次率影响因素模型,分析对超车次率产生影响的混合非机动车交通流特性参数与骑行人特征参数.结合杭州市的实测数据,采用统计回归分析方法分别建立全体车辆超车次率及电动自行车超车次率与主要影响因素之间的逐步回归模型,并对不同路段宽度条件下的回归模型进行对比分析.结果表明:总超车次率主要与电动自行车平均车速以及传统自行车的15%位车速成线性回归关系;电动自行车超车次率与电动自行车平均车速以及车辆速度方差成线性回归关系.该结果为制定电动自行车安全行驶车速提供理论依据. 展开更多
关键词 交通工程 混合非机动交通 超车次率
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混行非机动交通流车速离散特性研究 被引量:2
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作者 周旦 许镭 《交通节能与环保》 2019年第5期45-48,共4页
我国城市非机动道路内的交通现象通常为电动自行车与人力自行车混合行驶状况,车速离散是该类道路内交通流的重要特征。结合杭州市的调查数据,采用统计学方法定量分析混合非机动交通流车速离散特性,分别建立车速离散特性评价参数与各主... 我国城市非机动道路内的交通现象通常为电动自行车与人力自行车混合行驶状况,车速离散是该类道路内交通流的重要特征。结合杭州市的调查数据,采用统计学方法定量分析混合非机动交通流车速离散特性,分别建立车速离散特性评价参数与各主要影响因素之间的回归关系。结果表明,归一化车速离散度分别与各影响因素成线性回归关系;除电动自行车比例因素之外,车速变异系数与其它各因素成线性回归关系。 展开更多
关键词 混合非机动交通流 离散特性 归一化车速离散度 车速变异系数
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Relationship between number of passing events and operating parameters in mixed bicycle traffic 被引量:2
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作者 闫星臣 何鹏 +2 位作者 陈峻 叶晓飞 刘擎超 《Journal of Southeast University(English Edition)》 EI CAS 2015年第3期418-423,共6页
This paper investigates the passing events between electric bicycles and conventional bicycles and explores the relationships between passing events and traffic parameters in bicycle facilities.Three exclusive bicycle... This paper investigates the passing events between electric bicycles and conventional bicycles and explores the relationships between passing events and traffic parameters in bicycle facilities.Three exclusive bicycle paths in Nanjing, China,were observed with cameras.Then,the field data including vehicle number,velocity characteristics and passing event features were analyzed in detail.Data analysis and fitting reveal that the speed difference has little impact on the passing event number,as does the bicycle ratio.The Gaussian function can better describe the relationship between the passing event number and bicycle volume (density).The valid use level of bicycle path width influences the inflexion of the passing events-density fitting curve.The conclusions can be applied for estimating the passing events in mixed bicycle flows and for choosing a suitable width of separate bicycle path. 展开更多
关键词 mixed bicycle traffic passing events traffic operating parameters correlation analysis
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Dynamics of Motorized Vehicle Flow under Mixed Traffic Circumstance 被引量:2
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作者 郭宏伟 高自友 +1 位作者 赵小梅 谢东繁 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第4期719-724,共6页
To study the dynamics of mixed traffic flow consisting of motorized and non-motorized vehicles, a carfollowing model based on the principle of collision free and cautious driving is proposed. Lateral friction and over... To study the dynamics of mixed traffic flow consisting of motorized and non-motorized vehicles, a carfollowing model based on the principle of collision free and cautious driving is proposed. Lateral friction and overlapping driving are introduced to describe the interactions between motorized vehicles and non-motorized vehicles. By numerical simulations, the flux-density relation, the temporal-spatial dynamics, and the velocity evolution are investigated in detail The results indicate non-motorized vehicles have a significant impact on the motorized vehicle flow and cause the maximum flux to decline by about 13%. Non-motorized vehicles can decrease the motorized vehicle velocity and cause velocity oscillation when the motorized vehicle density is low. Moreover, non-motorized vehicles show a significant damping effect on the oscillating velocity when the density is medium and high, and such an effect weakens as motorized vehicle density increases. The results also stress the necessity for separating motorized vehicles from non-motorized vehicles. 展开更多
关键词 car-following mode mixed traffic flow velocity oscillation damping effect
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