| 交通流压缩特性研究(英文) |
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| 引用本文： | 王殿海,梁春岩,程瑶,姚荣涵.交通流压缩特性研究(英文)[J].东南大学学报,2009,25(2):262-266. |
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| 作者姓名： | 王殿海 梁春岩 程瑶 姚荣涵 |
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| 作者单位： | 王殿海,程瑶,Wang Dianhai,Cheng Yao(吉林大学交通学院,长春,130025);梁春岩,Liang Chunyan(吉林建筑工程学院交通科学与工程学院,长春,130021);姚荣涵,Yao Ronghan(大连理工大学国际航运中心研究院,大连,116024) |
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 为了描述交通流的压缩性并确定交通流压缩系数,将气体动力学中的Mach教引入交通流研究中,得到交通流压缩系数的定义及计算公式.根据交通流压缩系数的定义及其微分方程,建立了停车波模型.根据长春市实际调查数据,对模型进行计算及验证,得到停车波波速的理论值,该值与观测值之间的相对误差为20.3%,与传统停车渡模型的计算结果相比,精度提高了39%.结果表明:交通流具有可压缩性,研究气体流压缩性的方法同样适用于交通流;与传统停车波模型相比,由交通流压缩系数计算公式得到的停车波模型能更好地描述信号交叉口的停车波现象.
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| 关 键 词： | 交通流压缩性 Mach数 压缩系数 停车波 |
Study on compressibility of traffic flow |
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| Wang Dianhai Liang Chunyan Cheng Yao Yao Ronghan.Study on compressibility of traffic flow[J].Journal of Southeast University(English Edition),2009,25(2):262-266. |
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| Authors: | Wang Dianhai Liang Chunyan Cheng Yao Yao Ronghan |
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| Institution: | Wang Dianhai1 Liang Chunyan2 Cheng Yao1 Yao Ronghan3(1 College of Transportation,Jilin University,Changchun 130025,China)(2School of Science , Engineering on Communications,Jilin Architecture , Civil Engineering Institute,Changchun 130021,China)(3 Center for Transportation Research,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | In order to describe the compressibility of traffic flows and determine the compression factors,the Mach number of gas dynamics is introduced,and the concept and the formula of the compression factor are obtained.According to the concept of the compression factor and its differential equation,a stop-wave model is built.The theoretical value and the observed one are obtained by the survey data in Changchun city.The relative error between the two values is 20.3%.The accuracy is improved 39% compared with the ... |
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| Keywords: | compressibility of traffic flow Math number compression factor stop wave |
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