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信号交叉口自行车对左转机动车饱和流率的影响研究
发表时间：2010-03-31 浏览量：1720 下载量：837
| 全部作者： | 于泉，过雁鸣，荣建 |
| 作者单位： | 北京工业大学建筑工程学院交通工程北京市重点实验室 |
| 摘 要： | 为分析信号交叉口自行车与左转机动车的冲突，以国内信号交叉口的自行车作为主要研究对象，研究自行车通过交叉口时不同的状态，把自行车和左转机动车的冲突分为2种情况考虑：第一种情况考虑了绿灯初期大量释放的自行车和左转机动车的冲突，利用占有率的方法进行分析；第二种情况考虑了自由到达的自行车和左转机动车的冲突，利用可穿越间隙理论进行分析，最后计算出自行车对左转机动车饱和流率的影响系数。研究的成果是对Hard C�Means2000（HCM2000）手册中机动车通行能力计算内容和方法的适应性补充，可为机非混行条件下交叉口的信号配时方案设计和通行能力计算提供依据。 |
| 关 键 词： | 交通工程与交通管理；信号交叉口；机非冲突；饱和流率；占有率；可接受间隙 |
| Title： | Study on effect of bicycles on left�turn vehicles saturation flow rate at intersection |
| Author： | YU Quan, GUO Yanming, RONG Jian |
| Organization： | Key Laboratory of Transportation Engineering, College of Architecture and Civil Engineering, Beijing University of Technology |
| Abstract： | In order to analyze the conflict of bicycles and left�turn vehicles, this paper uses bicycles at signalized intersection as objective of research, through the study of the different states of bicycles crossing an intersection, this paper divides the conflicts of bicycles and vehicles into two cases to consider. In the first case, the conflicts of left�turn vehicles and the bicycles which are initially released by green light are taken into consideration, the paper studies occupation rate of bicycles in conflict zone to analyze the effect of bicycles in this case. In the second case, the paper considers the conflicts of vehicles and free�arrived bicycles, and uses theory of critical gap to analyze, finally it gets saturation flow reduction factor for left�turn vehicles. The result of this study can supply the content about calculating method of vehicle capacity at intersection in Hard C�Means2000 (HCM2000) and provide the basis for design of intersection signal timing program and calculation of capacity under the condition of mixed traffic at intersection. |
| Key words： | traffic engineering and management; signalized intersection; non�vehicle collision; saturation flow rate; occupation rate; critical gap |
| 发表期数： | 2010年3月第6期 |
| 引用格式： | 于泉，过雁鸣，荣建. 信号交叉口自行车对左转机动车饱和流率的影响研究[J]. 中国科技论文在线精品论文，2010，3（6）：607-613. |
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