摘要
针对车辆行驶中的安全因素,考虑静止车辆和低速车辆,在一维对称双车道元胞自动机模型(STCA)的基础上,建立了一种新的对称双车道元胞自动机模型。给出了计算机数值模拟的新模型流量-密度图,时空斑图以及车道改变率-密度图。模拟结果显示:新模型能模拟在临界密度后出现低速的同步相的情形,较STCA模型模拟的交通流现象更接近现实。
With the consideration of the safety factors of vehicle driving, especially the static vehicle and the slow moving vehicle, a new symmetric two-lane cellular automata was established based on a symmetric two-lane cellular automata （STCA） model. The numerical simulation of the flow density diagram, time space diagram, and lane change density diagram were presented. The simulation results show that the new model can simulate the synchronized flow at low speed after the critical density, and is closer to the reality than STCA model.
出处
《交通与计算机》
2007年第3期27-30,共4页
Computer and Communications
关键词
元胞自动机
双车道
安全驾驶
同步流
cellular automata
two-lane
safety driving
synchronized flow
