设置非机动车等候区的信号交叉口交通流模型

交通运输系统工程与信息 ›› 2019, Vol. 19 ›› Issue (4): 179-186.

设置非机动车等候区的信号交叉口交通流模型

邝先验^*，陈自如

江西理工大学电气工程与自动化学院，江西赣州 341000

收稿日期:2019-01-10 修回日期:2019-04-01 出版日期:2019-08-25 发布日期:2019-08-26
作者简介:邝先验(1976-)，男，江西南康人，教授，博士.
基金资助:
国家自然科学基金/National Natural Science Foundation of China(51268017，61463020)；江西省教育厅科技项目/ Science and Technology Project of Jiangxi Provincial Education Department(GJJ160609).

Traffic Flow Model of Signalized Intersection with Non-motor Vehicle Waiting Area

KUANG Xian-yan, CHEN Zi-ru

School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China

Received:2019-01-10 Revised:2019-04-01 Online:2019-08-25 Published:2019-08-26

摘要/Abstract

摘要：

城市机非混行交叉口的管理与控制是交通管理的重要内容.针对信号交叉口设置非机动车等候区的交通组织方式，建立了交叉口元胞自动机模型.对机动车流采用基于经典 NaSch(NS)的改进多车道元胞自动机模型，建立了交叉口换道规则，增加主动减速规则；对非机动车流采用具有侧向运动的扩展多值 CA模型.研究了设置等候区的车流状态特性，以及非机动车密度和等候区纵向长度对信号交叉口的影响.研究结果表明：设置等候区能在一定程度上提高交叉口的通行能力，但长度并非越长越好，当长度过长时在一定条件下会增大对机动车流的阻滞，总体上等候区是一种值得借鉴的方式；非机动车密度对机动车流的基本图具有显著影响.

关键词: 交通工程, 信号交叉口, 混合交通流, 元胞自动机, 非机动车等候区

Abstract:

The management and control of urban mixed flow intersection is an important part of traffic management. Aiming to the traffic organization mode of setting up non-motor vehicle waiting area at signalized intersection, a cellular automata model of intersection is built. An improved NS-based multi-lane CA model is used to modeling the motor vehicle flow, in which the lane-changing rules and active deceleration rules are established. The non-motor vehicle flow is modeled using extended multi-value CA model with lateral motion. The traffic flow characteristics and effects of non- motor vehicle density and longitudinal length of waiting area on signalized intersection are researched. The simulation results show that, the waiting area can improve capacity of intersection to a certain extent, if the length of the area is too long, the blocking to motor vehicle flow will increase under certain conditions. On the whole, the waiting area is a kind of worth learning mode. The density of non-motor vehicles has a significant effect on the basic diagrams of motor vehicle flow.

Key words: traffic engineering, signalized intersection, mixed traffic flow, cellular automata, non-motor vehicle waiting area

中图分类号:

U491

邝先验，陈自如. 设置非机动车等候区的信号交叉口交通流模型[J]. 交通运输系统工程与信息, 2019, 19(4): 179-186.

KUANG Xian-yan, CHEN Zi-ru. Traffic Flow Model of Signalized Intersection with Non-motor Vehicle Waiting Area[J]. Journal of Transportation Systems Engineering and Information Technology, 2019, 19(4): 179-186.

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http://www.tseit.org.cn/CN/Y2019/V19/I4/179

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