关键词: 数值模拟, 高速跟驰, 交通流, 前车动态效应, 元胞自动机

Abstract: In order to describe the phenomenon of “high speed car-following” in traffic, based on the NaSch model, it establishes a high speed car-following traffic flow model considering the dynamic effect of the preceding vehicle（DPM） by taking into account the movement characteristics of the preceding vehicle and combining the driver’s driving behavior. Through the numerical simulation, it obtains high speed car-following rule, when the density of road traffic is 0.18, the high speed car-following rate on the driveway is 4.93%. At the same time, by analyzing the space-time characteristics of the traffic flow, the model can simulate free flow, synchronized flow and wide moving jam in traffic flow. The model also shows the speed-flow-density relationship when driver proportions are different. The fluctuation of the speed and the headway distance of the vehicle are obtained, which has higher traffic stability than the NaSch model. Finally, the NGSIM data and the measured data in China are used to verify the DPM model, which proves the validity and practicability of the model.

Key words: numerical simulation, high speed car-following, traffic flow, dynamic effect of preceding vehicle, cellular automata