关键词: 城市交通, 优化速度改进, 数据验证, 交叉路口, 全速度差模型

Abstract:

In order to study the car-following behavior of the intersection accurately, based on the analysis of driving behavior characteristics on the condition of car-following, combine with real data of traffic flow and verify the Full Velocity Difference model (FVDM). In terms of the problem that the frequency response of FVDM is inaccurate, considering the velocity and front distance of the moving vehicles, an improved model is proposed based on maximum optimal speed. The improved optimal velocity is determined by the front distance and velocity of the two vehicles, thus reflects the expected moving speed of drivers (the optimization speed) more comprehensively and accurately. Using the data collected by taking videos at the intersection verify the improved model. It analyzes the verification results and compares with the one of original model, it also comes out that the improved model is more corresponded to the actual driving behavior at the intersection.

Key words: urban traffic, improved optimal velocity, data verify, intersection, FVD model