基于细胞自动机的信号控制交叉口交通流模拟(英文)

Traffic Simulation at Signalized Junction Based on Cellular Automata

应用细胞自动机方法对信号控制交叉口的动态交通流进行建模和模拟 ,可以使比较复杂的交通状态模拟用相对简单的计算来实现 .介绍了几种用于交通流模拟的细胞自动机模型及其研究进展 ,在此基础上 ,给出了一种新的细胞自动机模型来描述车辆在交叉口的移动状态 ,讨论了交通拥挤和延误的二维演变 ,并用这一方法模拟了不同规则下的车道变换问题 。

Modeling traffic flow dynamics by using cellular automata (CA) allows us to run a complex signalized intersection simulation with only comparatively low computational efforts. We examine several realistic generalization of the basic cellular automata model used in traffic simulation and give a new CA model to describe the dynamic traffic transition at signalized junction. Traffic jam and delay introduced by two_dimensional crosscut road are discussed. Using this model we have simulated the dynamic traffic flow for changing lanes in each direction under different rules. Comparison of the output shows the effectiveness of the initial inputted traffic management strategies.