基于通行效率最优的交叉口调头选位

孙锋; 孙立; 李庆印; 孙绍伟

doi:10.3969/j.issn.0258-2724.2017.02.017

基于通行效率最优的交叉口调头选位

doi: 10.3969/j.issn.0258-2724.2017.02.017

基金项目:

国家自然科学基金资助项目(51508315，61573009)

山东省重点研发计划资助项目(2016GGB01539)

详细信息

作者简介:
孙锋(1979-),男,博士,研究方向为交通管理与控制,E-mail:sunfeng0904@sina.com

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- 文章访问数: 554
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- PDF下载量: 142
- 被引次数: 0
出版历程
- 收稿日期: 2015-11-09
- 刊出日期: 2017-04-25

Location of U-Turn Openings at Signalized Intersections Based on Optimal Traffic Capacity

摘要

摘要: 针对信号交叉口调头区域设置不合理的问题，选择传统四相位控制交叉口为研究对象，基于通行效率最优提出了最佳调头位置的计算方法。该方法首先通过建立左转与调头共用车道的损失时间模型，揭示了左转和调头车流在不同交通条件下的相互影响机理；其次基于不同流向车辆的概率分布函数，构建了信号交叉口左转与调头共用车道的通行能力计算模型，揭示了调头位置对共用车道通行能力的影响特征；最后以淄博市中心城区为例进行了实例分析。实验结果表明，该方法能使左转与调头共用车道的通行能力由432 pcu/h提升到509 pcu/h，提高了17.82%。
- 信号交叉口 /
- 通行能力 /
- 调头口 /
- 最佳位置
Abstract: In order to solve the unreasonable deployment of U-turn openings at signalized intersections, a method is proposed to calculate locations of optimal U-turn openings based on the optimal traffic capacity by taking the traditional four-phase control intersection as an object. Firstly, a loss time model of lanes shared by left-turn and U-turn vehicles is built to reveal the interaction mechanism between left-turn and U-turn traffic flows in different traffic conditions. Then, a capacity calculation model of lanes shared by left-turn and U-turn vehicles is established using the probability distribution function of vehicles in different flow directions. The capacity-location (C-L) curve drawn by the model can fully reveal the capacity characteristics of the shared lanes under influence of the U-turn openings. Based on the maximum capacity, the optimal location of U-turn openings is finally determined. In addition, the validity of the method was verified through a case study in the central area of Zibo City. The result shows that the proposed method can improve the traffic capacity of the shared lane of left-turn and U-turn vehicles from 432 to 509 pcu/h by 17.82%.
- signalized intersection /
- traffic capacity /
- U-turn openings /
- optimal location

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参考文献(15)

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文章访问数: 554
HTML全文浏览量: 61
PDF下载量: 142
被引次数: 0

基于通行效率最优的交叉口调头选位

doi: 10.3969/j.issn.0258-2724.2017.02.017

作者简介: 孙锋(1979-),男,博士,研究方向为交通管理与控制,E-mail:sunfeng0904@sina.com

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出版历程

Location of U-Turn Openings at Signalized Intersections Based on Optimal Traffic Capacity

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出版历程

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作者简介:
孙锋(1979-),男,博士,研究方向为交通管理与控制,E-mail:sunfeng0904@sina.com