摘要
在一维交通流元胞自动机NaSch模型的基础上,考虑到不同车辆的驾驶员在敏感驾驶随机减速行为过程中其延迟概率是不同的,从而提出了一种改进的一维敏感驾驶元胞自动机交通流模型。根据所给出的车辆状态演化的并行更新规则进行了计算机仿真,模拟得到的基本图表明,与NaSch模型、SDNaSch模型相比,道路交通流量有较大的提高,而且还展现了亚稳态、相分离等复杂的实际交通现象。
Considering that drivers of the different vehicles may adopt different random brake probabilities, we proposed an improved one-dimensional sensitive driving cellular automation model of traffic flow based on the NaSch model. According to the new update rules of the evolution of vehicles, numerical simulation is conducted and leads to some new results. The fundamental diagram obtained by the simulation shows that the flux is higher than that of the NaSch model and the SDNaSch model. Moreover, some complicated behaviors of the model such as the met-stable state and the separation of phases are also observed.
出处
《微计算机信息》
北大核心
2006年第05S期290-292,295,共4页
Control & Automation
基金
教育部"面向21世纪教育振兴行动计划"资助项目。编号:A3.16-DX
关键词
元胞自动机模型
交通流
相分离
亚稳态
交通相变
计算机仿真
cellular automation model, traffic flow, phase separation, met--stable state, traffic phase transition, numerical simulation
