高速公路交通智能监控系统仿真研究

【作者】 靳引利；

【导师】 荆便顺；

【作者基本信息】 长安大学 ， 交通信息工程及控制， 2003， 硕士

【摘要】 近些年，用仿真的方法研究交通问题在我国取得了较大的发展，用仿真的方法研究高速公路的交通控制和管理问题，有着重大的现实意义。本文在对高速公路收费站已有交通流数据规律研究的基础上，运用模糊控制的原理，建立了高速公路交通智能控制的准微观仿真系统。 本文在系统设计中，用匝道控制和主线控制相结合的方法，进行高速公路全线交通的综合控制，优化控制效果；根据车辆行为分析，建立了车辆行为规则表，将车辆跟驰模型和换道模型简化为车辆行为表，减少了仿真时间；采用二级时间片的缓冲技术，解决了仿真过程为达到较高仿真精度所需的大量缓存与有限内存空间的矛盾。更多还原

【Abstract】 Great developments have been gotten in traffic research by simulation in our country these years and there is great practical significance in the study of freeway traffic control and management by simulation.In this article, the author establishes a near-microcosmic simulation system through the principle of fuzzy control, which based on the research of the rule of traffic float data of freeway toll station.In the system design, the author, firstly, uses the method, which combines lane control and main artery control, to make synthetic control on whole trip traffic freeway and optimize its result. Secondly, he establishes a rule table of vehicles’ behaviors based on analyzing them. The table can simplify the model of vehicle’s following and lane changing so that it will shorten the time of simulation. And thirdly, by using the cache technology of level-two time cell, the author solves the conflict, which arises from the limited memory and the masses of cache that is needed to get the better precision in simulation.更多还原