摘要
在周期性边界条件下,通过引入预测车辆间距对Noise-First模型进行改进,数值模拟了不同参数下的交通情形.研究表明:引入预测间距的Noise-First模型更能真实地反映实际交通状况,不仅再现了启止波、同步流,而且出现了亚稳态,非平衡相变等与实际道路交通一致的非线性现象.
In this context, we introduce anticipation headway to modify the Noise-First NaSch model under condition of periodic boundary. The traffic situation with different parameters can be numerical simulated. It was indicated that the Noise-First model with added anticipation headway is more realistic in reflecting traffic flow. Not only start-stop wave and synchronized flow but also the metastable state can be obtained by numerical simulation. The modified model can reproduce nonlinear phenomena which tallies with the real traffic.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第5期2517-2522,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10362001
10562001和70371067)资助的课题~~
关键词
交通流
元胞自动机
同步流
亚稳态
traffic flow, cellular automaton, synchronized flow, metastable state
