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Continuum modeling for two-lane traffic flow 被引量:10
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作者 Haijun Huang tieqiao tang Ziyou Gao 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2006年第2期132-137,共6页
In this paper, we study the continuum modeling of traffic dynamics for two-lane freeways. A new dynamics model is proposed, which contains the speed gradient-based momentum equations derived from a car-following theor... In this paper, we study the continuum modeling of traffic dynamics for two-lane freeways. A new dynamics model is proposed, which contains the speed gradient-based momentum equations derived from a car-following theory suited to two-lane traffic flow. The conditions for securing the linear stability of the new model are presented. Numerical tests are can'ied out and some nonequilibrium phenomena are observed, such as small disturbance instability, stop-and-go waves, local clusters and phase transition. 展开更多
关键词 Traffic dynamics Two-lane traffic flow Car-following theory Momentum equation
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Lane changing analysis for two-lane traffic flow 被引量:9
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作者 tieqiao tang Haijun Huang +1 位作者 S. C. Wong Rui Jiang 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2007年第1期49-54,共6页
In this paper, the two-lane traffic are studied by using the lane-changing rules in the car-following models. The simulation show that the frequent lane changing occurs when the lateral distance in car following activ... In this paper, the two-lane traffic are studied by using the lane-changing rules in the car-following models. The simulation show that the frequent lane changing occurs when the lateral distance in car following activities is considered and it gives rise to oscillating waves. In contrast, if the lateral distance is not considered (or considered occasionally), the lane changing appears infrequently and soliton waves occurs. This implies that the stabilization mechanism no longer functions when the lane changing is permitted. Since the oscillating and soliton waves correspond to the unstable and metastable flow regimes, respectively, our study verifies that a phase transition may occur as a result of the lane changing. 展开更多
关键词 Traffic flow Lane-changing rules Car-following models Flow stability
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A car-following model with the anticipation effect of potential lane changing 被引量:2
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作者 tieqiao tang Haijun Huang +1 位作者 S. C. Wong Rui Jiang 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2008年第4期399-407,共9页
In this paper, a new car-following model is presented, taking into account the anticipation of potential lane changing by the leading vehicle. The stability condition of the model is obtained by using the linear stabi... In this paper, a new car-following model is presented, taking into account the anticipation of potential lane changing by the leading vehicle. The stability condition of the model is obtained by using the linear stability theory. The modified Korteweg-de Vries (KdV) equation is constructed and solved, and three types of traffic flow in the headway-sensitivity space, namely stable, metastable and unstable ones, are classified. Both the analytical and simu- lation results show that anxiety about lane changing does indeed have an influence on driving behavior and that a consideration of lane changing probability in the car-following model could stabilize traffic flows. The quantitative relationship between stability improvement and lane changing probability is also investigated. 展开更多
关键词 Car-following model· Lane changing probability·Stability
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