| 一种计算交通波传播速度的方法 |
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| 引用本文： | 时伟,刘喜敏,卢守峰. 一种计算交通波传播速度的方法[J]. 力学学报, 2011, 43(5): 850-855. DOI: 10.6052/0459-1879-2011-5-lxxb2010-709 |
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| 作者姓名： | 时伟 刘喜敏 卢守峰 |
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| 作者单位： | 1.上海大学上海市应用数学和力学研究所 |
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| 基金项目： | 国家自然科学基金(71071024,11047003); 国家基础研究计划(2006CB705500); 梧州学院院级课题基金(2008B012); 湖南省教育厅重点项目基金(09A003); 长沙市科技局(K1001010-11)资助项目~~ |
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| 摘 要： | 基于交通心理学和车辆跟驰的物理机制推导出一种交通波传播速度公式, 可以用于计算各种车流状态下的波速. 应用交通波传播速度公式计算了平面交叉口红灯变为绿灯时的起动波波速, 通过与实测数据比较, 证实了该计算方法的可行性.在此基础上推导了交通波速的特性, 以事故波波速特性为例进行了详细讨论, 所得结果符合交通实际.
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| 关 键 词： | 韦伯定律 |
| 收稿时间： | 2010-10-28 |
| 修稿时间： | 2011-05-18 |
AN ESTIMATION APPROACH OF WAVE SPEED IN REAL TRAFFIC FLOW |
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| Shi Wei) Liu Ximin Lu Shoufeng. AN ESTIMATION APPROACH OF WAVE SPEED IN REAL TRAFFIC FLOW[J]. chinese journal of theoretical and applied mechanics, 2011, 43(5): 850-855. DOI: 10.6052/0459-1879-2011-5-lxxb2010-709 |
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| Authors: | Shi Wei) Liu Ximin Lu Shoufeng |
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| Affiliation: | 1.Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China2.School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha 410004, China |
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| Abstract: | A formula for determining the propagation speed of traffic waves in real traffic flows is derived based on the physical mechanism of car-following,which can be used to calculate the starting wave speed at the urban signalized intersections as the red light turns to green one and the incident wave speed on expressways.It is proved that the presented formula is reasonable and applicable through the comparison between the calculated results and in situ measured data.In addition,the characters of traffic wave s... |
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| Keywords: | traffic flows starting wave incident wave wave speed traffic psychology Weber law |
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