快速路网宏观交通流仿真系统的开发与仿真  

Development and Simulation of Macroscopic Traffic Flow Simulation System for Urban Freeway Networks

作　　者：张声荣[1] 干宏程[1] 孙鑫 杨珍珍[1] 

机构地区：[1]上海理工大学管理学院,上海200093 [2]石油化工科学研究院应用化学系,北京100083

出　　处：《计算机系统应用》2011年第7期16-21,共6页Computer Systems & Applications

基　　金：国家自然科学基金(51008195);上海市教育委员会科研创新项目(09YZ205);上海市研究生创新基金(JWCXSL1022)

摘　　要：为了给快速路网运行状况分析和控制策略评价提供高效辅助决策工具,提出快速路网宏观交通流仿真系统整体框架,分输入模块、仿真模块和输出模块三部分,并给出采用Microsoft Visual Basic面向对象语言开发的实现流程图和关键技术。仿真案例采用该系统对包含两个起点、两个终点的快速路网进行仿真,刻画交通拥挤的形成、传播和消散过程,并模拟ALINEA匝道控制策略情景下路网的运行状况。仿真案例表明,该系统能较好地描述网络交通流的时空动态演化,是测试、评价交通控制策略的有效工具。In order to provide an effective method for traffic operation and evaluating different traffic control strategies for urban freeway network,this paper provides a macroscopic traffic flow simulation system for urban freeway.Whole framework of the system includes input module,simulation module and output module.Then it describes the program process and gives the main technical details via the object-oriented language Microsoft Visual Basic.Finally,taking the example of an urban freeway network with two origins and two destinations,this paper describes the process of generation,spreading and dissipation of the recurrent congestion.Besides,it simulates the effects of the ALINEA ramp metering strategy.Research results show that the system does not only do well in describing the evolution of the network traffic flow,but also testing and evaluating traffic control strategy effectively.

关 键 词：城市快速路 宏观交通流仿真 交通控制 交通仿真系统 常发性交通拥挤 

分 类 号：TP399-C6[自动化与计算机技术—计算机应用技术]