关键词: 交通流, 跟驰模型, 线性稳定性分析, 数值仿真, 参数标定

Abstract: In order to improve the stability of traffic flow, an extended car following model is proposed by considering the effect of backward looking and the optimal velocity changes with memory, in terms of the Backward Looking and Velocity Difference （BLVD） model. The linear stability condition of the presented model is obtained by using the linear stability analysis. As the optimal velocity changes and backward looking effects are considered, the stable area is obviously enlarged. Then, the point is verified by numerical simulation. Compared with the BLVD model, simulation results show that the extended model can further improve the traffic flow stability under the same initial disturbance conditions. Finally, the proposed car-following model is calibrated and evaluated using the Next Generation Simulation （NGSIM） data. The results prove that the extended model can describe the evolution of traffic flow more accurately.

Key words: traffic flow, car-following model, linear stability analysis, numerical simulation, parameter calibration