| 红绿灯周期对二维交通流的影响及平均场理论 |
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| 引用本文： | 孙舵,汪秉宏.红绿灯周期对二维交通流的影响及平均场理论[J].吉林大学学报(工学版),2009(Z2). |
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| 作者姓名： | 孙舵 汪秉宏 |
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| 作者单位： | 中国科学技术大学近代物理系;上海理工大学复杂系统科学研究中心及上海系统科学研究院; |
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| 基金项目： | “973”国家重点基础研究发展规划项目(2006CB705500);;国家自然科学基金项目(60744003,10635040,10532060,10975126);;高等学校博士学科点专项科研基金项目(20060358065);;国家基础科学人才培养基金项目(J0630319) |
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| 摘 要： | 基于二维交通流Biham-Middleton-Levine(BML)模型,研究了不同红绿灯周期对交通状况的影响。模型模拟结果显示:随着车辆密度的增加,在一定的临界密度下,车辆的平均速度会突然从高速相变成低速相,并随着红绿灯周期的增大,这一临界密度非严格单调递减。对模型进行了平均场理论解析,其结果与模拟结果基本符合,并进一步解释了非单调现象。
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| 关 键 词： | 交通运输工程 BML模型 红绿灯周期 平均场理论 |
Effects of traffic lights period and application of mean-field theory in two dimension traffic flow |
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| SUN Duo,WANG Bing-hong.Effects of traffic lights period and application of mean-field theory in two dimension traffic flow[J].Journal of Jilin University:Eng and Technol Ed,2009(Z2). |
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| Authors: | SUN Duo WANG Bing-hong |
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| Affiliation: | 1.Department of Modern Physics;University of Science and Technology of China;Hefei 230026 China;2.Research Center for Complex System Science;University of Shanghai for Science and Technology and Shanghai Academy of System Science;Shanghai 200093 China |
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| Abstract: | The effects of different traffic lights period on the traffic flow were studied based on two dimension Biham-Middleton-Levine(BML) model.The simulation results in BML model show that,the average velocity of the vehicles has a sharp change from high-speed phase to low-speed phase at the certain critical vehicle density with the increase of vehicle density,and this critical density do not strictly decreases with the increase of the traffic lights period.A mean-field theoretical analysis was made,and its resul... |
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| Keywords: | engineering of communication and transportation Biham-Middleton-Levine(BML) model traffic lights period mean-field theory |
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