机构地区: 暨南大学
出 处: 《中国公路学报》 2000年第4期83-85,共3页
摘 要: 针对 MARKOS PAPAGEORGIOU(1 990 )所建立的交通流模型在高速公路某路段发生阻塞现象时不能反映这一路段交通流真实状态的局限性 ,给出一个改进的交通流模型。在新模型基础上构造了入口匝道最优控制问题 ,计算机仿真结果表明本文的控制策略在降低入口匝道平均等待时间、提高服务流量等性能上有较好的控制效果。 An improved traffic flow model is presented,aiming at the limitation that the traffic flow model established by Markos Papageorgiou (1990) can not reveal traffic status when congestion happens in a secticn of a freeway.On the basis of this new model, an on ramp optimal control strategy is constructed.Finally the computer simulation results are given,which show that this control strategy is useful in reducing the average waiting time of on ramp and improving the traffic service volume.