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Chinese Physics B 2021年第10期30卷 705-710页

作者：彭光含汤瑞邝华谭惠丽陈陶 College of Physical Science and Technology Guangxi Normal UniversityGuilin 541004China Boyuan Scientific Instruments(Zhenjiang)Co. LtdZhenjiang 212003China

A new coupled map car-following model in this paper is proposed by considering the influence of the difference of the estimated optimal speed based on the coupled map(CM)car-following model under V2X environment.The stability of the new model is analyzed by applying the control theory,and the conditions are obtained for the stability of the traffic system.And the two scenes of vehicle stopping once and four times have been simulated.The simulation results show that the control term considered with optimal estimation of speed difference can effectively improve the stability of vehicle running and reduce CO_(2) emissions in the CM car-following model.

关键词： traffic flow optimal velocity model numerical simulation

A new car-following model with driver's anticipation effect of traffic interruption probability

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Chinese Physics B 2020年第8期29卷 349-354页

作者：彭光含 College of Physical Science and Technology Guangxi Normal UniversityGuilin 541004China

Traffic interruption phenomena frequently occur with the number of vehicles increasing.To investigate the effect of the traffic interruption probability on traffic flow,a new optimal velocity model is constructed by considering the driver anticipation term in the interruption case for car-following theory.Furthermore,the effect of driver anticipation in the interruption case is investigated via linear stability analysis.Also,the MKdV equation is obtained concerning the effect of driver anticipation in the interruption case.Moreover,numerical simulation states that the driver anticipation term in the interruption case contributes to the stability of traffic flow.

关键词： traffic flow interruption probability optimal velocity model numerical simulation

Influence of lane change on stability analysis for two-lane traffic flow

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Chinese Physics B 2011年第8期20卷 495-507页

作者：郑亮马寿峰钟石泉 Institute of Systems Engineering College of Management & EconomicsTianjin University

This paper deals mainly with the influence of lane changing behaviours on the stability of two-lane traffic flow under a periodic boundary condition. Following the description of an optimal velocity model for two vehicle groups and the derivation of their stability conditions, the feedback signals, which involve information about vehicles from both lanes acting on the two-lane traffic system, are introduced into the optimal velocity model. The control signals play a role in alleviating the traffic jam only if the traffic state is in congestion, and their role will vanish if the traffic state is in the steady state. The numerical simulations show that lane changing behaviours can break the steady state of two-lane traffic flow and aggravate the traffic disturbance, but the control method would successfully suppress the traffic jam eventually, which implies that the conclusions obtained here have certain theoretical and practical significance.

关键词： stability analysis optimal velocity model lane changing behaviours feedback signals

Multiple car-following model of traffic flow and numerical simulation

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Chinese Physics B 2009年第12期18卷 5420-5430页

作者：彭光含孙棣华 College of Automation Chongqing University College of Physics and Electronics Hunan University of Arts and Sciences

On the basis of the full velocity difference （FVD） model, an improved multiple car-following （MCF） model is proposed by taking into account multiple information inputs from preceding vehicles. The linear stability condition of the model is obtained by using the linear stability theory. Through nonlinear analysis, a modified Korteweg-de Vries equation is constructed and solved. The traffic jam can thus be described by the klnk-antikink soliton solution for the mKdV equation. The improvement of this new model over the previous ones lies in the fact that it not only theoretically retains many strong points of the previous ones, but also performs more realistically than others in the dynamical evolution of congestion. Furthermore, numerical simulation of traffic dynamics shows that the proposed model can avoid the disadvantage of negative velocity that occurs at small sensitivity coefficients λ in the FVD model by adjusting the information on the multiple leading vehicles. No collision occurs and no unrealistic deceleration appears in the improved model.

关键词： traffic flow optimal velocity model numerical simulation

Stabilisation analysis of multiple car-following model in traffic flow

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Chinese Physics B 2010年第5期19卷 434-441页

作者：彭光含 College of Physics and Electronic Science Hunan University of Arts and Science

An improved multiple car-following model is proposed by considering the arbitrary number of preceding cars, which includes both the headway and the velocity difference of multiple preceding cars. The stability condition of the extended model is obtained by using the linear stability theory. The modified Korteweg-de Vries equation is derived to describe the traffic behaviour near the critical point by applying the nonlinear analysis. Traffic flow can be also divided into three regions： stable metastable and unstable regions. Numerical simulation is in accordance with the analytical result for the model. And numerical simulation shows that the stabilisation of traffic is increasing by considering the information of more leading cars and there is unavoidable effect on traffic flow from the multiple leading cars information.

关键词： traffic flow optimal velocity model numerical simulation

Effect of multi-velocity-difference in traffic flow

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Chinese Physics B 2008年第12期17卷 4446-4450页

作者：莫业柳何红弟薛郁时伟卢伟真 Institute of Physical Science and Engineering Guangxi University Department of Building and Construction City University of Hong Kong Shanghai Institute of Applied Mathematics and Mechanics Shanghai University

Based on the optimal velocity models, an extended model is proposed, in which multi-veloclty-dllterence aheacl is taken into consideration. The damping effect of the multi-velocity-difference ahead has been investigated by means of analytical and numerical methods. Results indicate that the multi-velocity-difference leads to the enhancement of stability of traffic flow, suppression of the emergence of traffic jamming, and reduction of the energy consumption.

关键词： traffic flow optimal velocity model stable condition linear stability analysis