考虑反馈条件的元胞自动机交通流的建模与仿真

Modeling and Simulation of Cellular Automata Traffic Flow in Feedback Conditions

将NS模型中存在的车辆倒退现象以及刹车过急等与实际交通状况不相适应的地方进行改进,提出了反馈形式的交通流元胞自动机模型,该改进NS模型引入了前车状态的变化量以及一套全新的速度更新规则来模拟交通流的变化。仿真试验证明该模型更加符合实际交通基本特征,同时该模型使车流总体增大,也成为后续模型的基础模型。

Through the establishment of improved NS model, the setback and the acute brake existing in the NS model vehicle that do not adapt to the actual traffic conditions are improved and then the feedback type of cellular automata model of traffic flow is put forward in this article. The variable quantity of the front vehicle status is introduced into the improved model and a new set of speed-update rules are used to simulate the change of traffic flow. The computer simulation proves that the model is more in line with the actual traffic characteristics, and at the same time it makes the overall traffic increase and can also be the foundation of subsequent models.