摘要
针对VDR模型中慢启动规则存在不尽周严的地方并考虑车辆的相对运动情况,提出了考虑车流实际运行状态的一维元胞自动机模型。数值模拟表明,新模型能更好地描述实际车流的运行状态,并达到更高的路段平均速度和流量,而且避免了VDR模型中的不合理停车,使车辆在路段上分布更加均匀。
In view of several faults of the slow-to-start rules in the VDR model and the vehicle relative velocity,a one-dimensional cellular automaton model of traffic flow is established with consideration of vehicle moving status.Numerical simulation results show that the new model can describe the actual traffic flow better while achieving a higher average speed and volume,and make vehicles well distributed by avoiding unreasonable stop in VDR model as well.
出处
《交通信息与安全》
2010年第2期21-23,46,共4页
Journal of Transport Information and Safety
基金
国家自然科学基金重点项目(批准号:70631002)资助
关键词
交通流
元胞自动机
慢启动
相对运动
traffic flow
cellular automaton
slow-to-start
relative velocity
