| 考虑车辆加速度和次邻近车辆速度差的跟驰模型及仿真研究 |
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| 引用本文： | 陈刚.考虑车辆加速度和次邻近车辆速度差的跟驰模型及仿真研究[J].科学技术与工程,2012,12(15):3672-3674,3684. |
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| 作者姓名： | 陈刚 |
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| 作者单位： | 1. 深圳市城市交通规划设计研究中心有限公司,深圳,518021
2. 茂名市公路管理局,茂名,524000 |
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| 摘 要： | 在次邻近车辆速度差模型(Two Velocity Difference Model,TVDM)的基础上,提出了一个扩展的交通流模型,即加速度与次邻近车辆速度差模型(Acceleration and Two Velocity Difference Model,ATVDM)。线性稳定性分析表明:和TVDM相比,ATVDM模型可以使交通流的稳定性得到增强,稳定区域有明显增加。数值模拟结果表明ATVDM不仅可以成功预测车辆运动延迟时间和启动波波速,还可以避免急刹车情况下事故的发生。
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| 关 键 词： | 交通流 稳定性 加速度 速度差 |
| 收稿时间： | 3/12/2012 3:19:16 PM |
| 修稿时间： | 2012/3/19 0:00:00 |
Acceleration and Two Velocity Difference Model and its numerical simulations analysis |
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| Chen gang.Acceleration and Two Velocity Difference Model and its numerical simulations analysis[J].Science Technology and Engineering,2012,12(15):3672-3674,3684. |
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| Authors: | Chen gang |
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| Institution: | 2(Shenzhen Urban Transportation Planning & Design Center Co.,Ltd1,Shenghey 518021,P.R.China; Maoming Highway Administration Bureau2,Maoming 524000,P.R.China) |
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| Abstract: | Based on the Two Velocity Difference Model (TVDM), an extended car following model named Acceleration and Two Velocity Difference Model (ATVDM) has been proposed. Stability condition for the new model is obtained by using the linear stability theory. Numerical simulations show that ATVDM not only could predict the delay time of car motion and kinematic wave speed at jam density, but also avoid accidents under urgent braking cases. The traffic jam could be suppressed by considering the acceleration of front vehicle. All result shows that ATVDM is an improvement on the TVDM. |
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| Keywords: | traffic flow stability acceleration velocity difference |
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