摘要
通过建立三车道上的交通流元胞自动机模型来仿真三车道中公交车对交通流的影响.在模型中引入了小汽车和公交车的行驶特性.对两种车辆的换道规则考虑了司机的驾驶心理,合理控制车辆换道的概率.通过数值模拟得到了分别随小汽车和公交车密度的增大时,公交车和小汽车流量的变化规律.说明只要合理控制小汽车密度,公交车对交通流量的影响是有限的.但是当小汽车的密度较大时,公交车密度的增大会严重影响道路的交通流量.
The impact of the buses on the traffic flow is studied through the establishment of three-lane traffic flow cellular automata model.In the model,the driving characteristics of the car and the bus are introduced,and lane-changing probability is controlled reasonably.By numerical simulation,the law of the changes of the traffic flow of the bus and the car are achieved as the increase of the density of buses and cars separately.The impact on the traffic flow is limited when the density of car is controlled reasonably.But when the density of car becomes larger,the traffic flow is affected badly as the increase of the density of buses.
出处
《兰州交通大学学报》
CAS
2010年第3期75-78,共4页
Journal of Lanzhou Jiaotong University
关键词
元胞自动机
三车道
混合交通流
交通仿真
cellular automata
three-lane road
mixed traffic flow
traffic simulation
