关键词: 交通工程, 最优速度, 跟驰模型, 弯道, 稳定性分析, 数值模拟

Abstract: In order to study the following characteristics and stability conditions of vehicles on road curves, on the basis of the classical OV model, the OV model of curve was established by considering the influence of road friction, curve radius and super high factors and combining the mechanical characteristics of curve. Based on the following perturbation principle of the vehicle in the curve section, the linear stability of the model was analyzed by using the convergence of Fourier series, and the disturbance stability conditions of the curve following model were obtained. Then, according to the influence factors of sensitivity coefficient, the curve of traffic flow stability region in different curve radians was drawn. In order to verify the validity of the curve following model, computer simulation and road test experiments were carried out to verify the proposed model. The results show that under the same initial density, the stability of the traffic flow in the curve decreases with the increase of curve radian.

Key words: traffic engineering, optimal velocity, car following model, curve, stability analysis, numerical simulation