摘要
文章对多速度差(Multiple Velocity Difference,MVD)模型的交通流特性进行了详细的分析.数值模拟发现:MVD模型启动过程中的车辆运动延迟时间和启动波速均是合理的,并且能够得到描述车辆从自由流到阻塞流相变的迟滞环.此外,模拟还发现该模型不会产生不切实际的过高加速度.
Based on the numerical simulation, the traffic property of the Multiple Velocity Difference model is analyzed in detail. It can be found that the delay time of car motion and the kinematic wave speed of MVD model are reasonable, and the hysteresis loop which describes the phase transition of traffic flow can be obtained. In addition, the unrealistically high acceleration does not appear in the MVD model.
出处
《系统工程理论与实践》
EI
CSCD
北大核心
2008年第10期150-155,共6页
Systems Engineering-Theory & Practice
关键词
交通流
相变
迟滞环
速度差
traffic flow
phase transition
hysteresis loop
velocity difference
