Effect of the optimal velocity function on traffic phase transitions in lattice hydrodynamic models
Effect of the optimal velocity function on traffic phase transitions in lattice hydrodynamic models
复制标题
最优速度函数对晶格流体动力学模型中交通相变的影响
DOI:
10.1016/j.cnsns.2008.06.017
复制
发表时间:
2009-05
期刊:
影响因子:
--
通讯作者:
Li, Zhipeng
中科院分区:
文献类型:
--
作者:
Han, Xianglin;Dai, Shiqiang;Li, Xingli;Li, Zhipeng
The original lattice hydrodynamics models of traffic flow are extended to take into account the complex acceleration behavior of drivers. A new optimal velocity function which considers the stepwise acceleration effect and fits the observed data better is introduced. The stability conditions of these two models are obtained by using the linear stability theory. It is shown that the modified optimal velocity function has a remarkable influence on the neutral stability curve and the traffic phase transitions. In a certain vehicle’s density and driver’s sensitivity region, tri-stable states will occur. In addition, the properties of the multiple phases also depend on the asymmetry of the optimal velocity function and the stage number of multi-phase transitions is closely related to the turning points of the optimal velocity function. The validity and correctness of the analytical results is confirmed by numerical simulations.
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DOI:
10.1016/s0378-4371(98)00466-x
发表时间:
1999-03
影响因子:
3.3
作者:
T. Nagatani
通讯作者:
T. Nagatani
DOI:
10.1016/s0378-4371(00)00578-1
发表时间:
2001-02
影响因子:
3.3
作者:
T. Nagatani
通讯作者:
T. Nagatani
影响因子:
2.4
作者:
Nagatani, T
通讯作者:
Nagatani, T
DOI:
10.1016/s0378-4371(98)00563-9
发表时间:
1999-03
影响因子:
3.3
作者:
T. Nagatani
通讯作者:
T. Nagatani
DOI:
10.7498/aps.53.25
发表时间:
2005-04
期刊:
--
影响因子:
--
作者:
Xue Yu
通讯作者:
Xue Yu