基于动态交通分配的区域疏散实时交通控制研究  

A Study of Regional Evacuation Real-time Traffic Control Based on Dynamic Traffic Assginment

作　　者：陈星 

机构地区：[1]沈阳市交通规划设计院,沈阳110168

出　　处：《科学技术与工程》2013年第35期10763-10768,10548,共7页Science Technology and Engineering

摘　　要：针对飓风、台风等可预报自然灾害,在其登陆城市之前的一定安全时限内,大规模机动车辆区域疏散问题进行了研究。在建立路段、交叉口疏散交通流动态模型的基础上,提出了面向大规模区域疏散实时交通控制的建模框架,整合了预报实时交通流形态的动态交通分配解析模型和交通流实时自适应控制策略的生成模型,能够服务于具体的大规模区域疏散实时交通控制实践。案例分析的结果表明,所提出框架、模型可以有效地提高大规模区域疏散交通控制的性能。Aims to study the regional evacuation of mass vehicles before the predictable natural disasters＇ land-fall, for instance, typhoon, hurricane and flooding, first, the link dynamics model and node dynamics model are presented to describe the evacuation traffic flow. Second, a predictable disasters oriented framework of real-time traffic control is presented, which integrates both the analytical Dynamic Traffic Assignment model for the flow dynamics prediction and the adaptive control strategy generation model. This framework can be used for mass evacuation operations. The results of case study show that this framework can significantly improve the evacuation performance.

关 键 词：区域疏散 实时交通控制 动态交通分配 

分 类 号：X951[环境科学与工程—安全科学] U121[交通运输工程]