信号控制交叉口自行车流运行特征模型  

Bicycle Traffic Flow Characteristics at Signaled Intersections Research

作　　者：孙明正[1] 杨晓光[2] 

机构地区：[1]北京交通发展研究中心,北京100055 [2]同济大学交通工程系,上海200092

出　　处：《城市交通》2008年第2期92-96,11,共6页Urban Transport of China

基　　金：国家自然科学基金-通用"中国科学研究基金"资助项目(70122201/G0114)

摘　　要：为科学合理地解决城市道路信号控制交叉口自行车交通流通行能力的计算问题,在分析大量实测数据的基础上,对信号控制交叉口自行车交通流的运行特征进行了分析,得出自行车停车排队密度随交叉口自行车道宽度增加而线性递减的关系。根据自行车在启动后匀加速到匀速行驶的特征,建立了自行车交通流启动时间-速度、时间-距离模型;根据实测数据,标定了自行车流排队膨胀模型;根据绿灯时间自行车流量与车道宽度之间明显存在的线性关系,建立了交叉口自行车饱和流量和通行能力计算模型,为形成交叉口自行车通行空间设计、混合交通流信号控制理论奠定了基础。The characteristics of bicycle flow are analyzed based on observational data. The results show that the density of the queued bikes decreases lineally as does the width of the bike lanes. The relationship is based on scientific methodology applicable for calculating bicycle traffic capacity at signaled intersections. Other traffic models are also utilized to provide a theoretical basis for improving traffic space design and urban mixed traffic control, such as the time-speed and time-distance models based on the relationship between constant acceleration and constant speed; the swelling model of bicycle queues based on observational data; and the model of full bicycle traffic flow and traffic capacity based on the relationship between bicycle flow and lane width at the beginning of the green phase.

关 键 词：交通工程 自行车交通 自行车流模型 信号控制交叉口 通行能力 

分 类 号：U491.26[交通运输工程—交通运输规划与管理]