| 基于时空图的交通状态转变时刻的判别方法研究 |
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| 引用本文： | 郭嘉,许伦辉.基于时空图的交通状态转变时刻的判别方法研究[J].交通与计算机,2012(1):20-23,28. |
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| 作者姓名： | 郭嘉 许伦辉 |
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| 作者单位： | 华南理工大学土木与交通学院,广州510640 |
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| 摘 要： | 针对交通状态转变时刻的判断问题进行了研究,在传统的交通状态研究模型基础上提出了时空图在状态判别中的应用,并在利用前人提出的调整累积曲线方法进行了比较,证实了引入该方法的有效性和准确性,提高了对交通拥挤转变时刻的判定上的准确率,在交通流特性的研究中起到十分重要的作用。
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| 关 键 词： | 交通拥挤 时空图 特征线 冲击波 |
Application of X-T Curve in Determination of Traffic Change Time |
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| GUO Jia,XU Lunhui.Application of X-T Curve in Determination of Traffic Change Time[J].Computer and Communications,2012(1):20-23,28. |
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| Authors: | GUO Jia XU Lunhui |
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| Institution: | (College of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | This paper studies the traffic state transition and puts forward a new method of judging traffic state change time,the x-t curve,based on the traditional traffic state model,and compares it with the traffic flow parameter adjustment accumulative curve to prove its effectiveness and accuracy.This method improves the accuracy of judging the state transition time in the traffic congestion,and can be very useful in the research on traffic flow. |
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| Keywords: | traffic congestion X-T curve characteristic line shock wave |
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