| 考虑车辆动力性能的跟驰模型 |
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| 引用本文： | 樊小红,贺昱曜,于福华. 考虑车辆动力性能的跟驰模型[J]. 长安大学学报(自然科学版), 2010, 0(1) |
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| 作者姓名： | 樊小红 贺昱曜 于福华 |
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| 作者单位： | 长安大学电子与控制工程学院;西北工业大学航海学院; |
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| 摘 要： | 针对传统跟驰模型产生过大的加速度问题,采用可变的期望间距模型,并考虑车辆所允许的速度与加速度取值约束,建立了考虑车辆动力性能的微观跟驰模型,模拟加速度与速度、车间距的变化关系,并进行仿真分析。研究结果表明:加速度最大值取4 m/s2时,流量-密度曲线由线性区自由流和非线性区协同阻塞流组成;当加速度最大值为5 m/s2时,流量-密度曲线分成3段,分别是线性区自由流、非线性区协同阻塞流和交通量基本恒定的宽幅阻塞流;随着加速度的变大,流量-密度曲线由2相变成3相,且协同阻塞区变宽,交通流的稳定性变差;同Bando模型及多相模型相比,该模型能更好地反映交通流的实际特性。
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| 关 键 词： | 交通工程 跟驰模型 可变期望间距 最大加速度 流量-密度曲线 稳定性 |
Model of car-following considering car dynamics |
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| FAN Xiao-hong,HE Yu-yao,YU Fu-hua. Model of car-following considering car dynamics[J]. JOurnal of Chang’an University:Natural Science Edition, 2010, 0(1) |
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| Authors: | FAN Xiao-hong HE Yu-yao YU Fu-hua |
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| Affiliation: | FAN Xiao-hong1,HE Yu-yao2,YU Fu-hua1(1.School of Electronic , Control Engineering,Chang'an University,Xi'an 710064,Shaanxi,China,2.School of Marine Engineering,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | To solve the problem of the overshoot of acceleration by traditional model,this paper presents a model with variable desirable distance for vehicle following,which considering the limitation of the velocity and the acceleration of the car.The results show that: as the maximum of acceleration is taken to 4 m/s2,the flow-density diagram is consisted of free flow in the linear zone and synchronized flow in the nonlinear zone;when the maximum of acceleration equals to 5 m/s2,the flow-density diagram can be divi... |
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| Keywords: | traffic engineering car-following model variable desirable distance maximum acceleration flow-density diagram stability |
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