非均匀路段交通流的元胞自动机模拟

doi:10.12066/j.issn.1007-2861.2391

上海大学学报(自然科学版) ›› 2022, Vol. 28 ›› Issue (4): 594-607.doi: 10.12066/j.issn.1007-2861.2391

非均匀路段交通流的元胞自动机模拟

周文海¹, 李舒健¹, 董力耘¹^,²()

1.上海大学力学与工程科学学院上海市应用数学和力学研究所, 上海 200072
2.上海市能源工程力学重点实验室, 上海 200072

收稿日期:2022-03-31 出版日期:2022-08-30 发布日期:2022-08-29
通讯作者: 董力耘 E-mail:dly@shu.edu.cn
作者简介:董力耘(1971—), 男, 副教授, 博士, 研究方向为交通流动力学等. E-mail: dly@shu.edu.cn
基金资助:
国家自然科学基金资助项目(11572184)

Simulation of traffic flow on non-uniform road sections with cellular automaton model

ZHOU Wenhai¹, LI Shujian¹, DONG Liyun¹^,²()

1. Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai 200072, China
2. Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China

Received:2022-03-31 Online:2022-08-30 Published:2022-08-29
Contact: DONG Liyun E-mail:dly@shu.edu.cn

摘要/Abstract

摘要：

基于细化的 VDR(velocity-dependent-randomization) 模型研究了交通灯控制下非均匀路段道路交通流的演化特征, 并在周期边界下讨论了同相、反相和自组织 3 种交通灯策略对道路通行效率的影响. 模拟结果表明: 对于均匀路段, 低密度下采用同相和反相策略都会出现绿波现象. 同相策略时交通流对路段长度变化不敏感, 而反相时则影响明显, 尤其是存在明显小于平均路长的短路段, 绿波现象也会受到抑制. 在自组织交通灯策略下, 路段交通流对于路段长度变化不敏感, 道路通行效率明显提高, 并在一定密度范围内再现绿波现象.

关键词: 元胞自动机, VDR(velocity-dependent-randomization) 模型, 自组织交通灯, 绿波

Abstract:

Traffic flow characteristics on non-uniform road sections under traffic light controls were investigated using a refined velocity-dependent-randomization (VDR) model, considering three traffic light strategies: in-phase, anti-phase, and self-organizing. The effects of traffic light strategies on road traffic efficiency are analyzed under the periodic boundary. The simulation results show that for uniform road sections, the green wave phenomenon occurs at low densities using in-phase and anti-phase traffic light strategies. It was found that the traffic flow under the in-phase strategy is insensitive to variation in road length. In contrast, the traffic flow under the anti-phase strategy is sensitive to variation in road length, and the green wave phenomenon is suppressed, particularly when a short road section is significantly smaller than the average road length. Under the self-organizing traffic light strategy, fundamental diagrams are insensitive to variations in road length. Moreover, the traffic efficiency on the multi-section road is significantly improved, and the green wave phenomenon is replicated within a specific density range.

Key words: cellular automaton, velocity-dependent-randomization (VDR) model, self-organizing traffic light, green wave

中图分类号:

周文海, 李舒健, 董力耘. 非均匀路段交通流的元胞自动机模拟[J]. 上海大学学报(自然科学版), 2022, 28(4): 594-607.

ZHOU Wenhai, LI Shujian, DONG Liyun. Simulation of traffic flow on non-uniform road sections with cellular automaton model[J]. Journal of Shanghai University（Natural Science Edition）, 2022, 28(4): 594-607.

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非均匀路段交通流的元胞自动机模拟

Simulation of traffic flow on non-uniform road sections with cellular automaton model

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