摘要:目前 ,随着计算机技术的进步 ,系统仿真技术在国内外已经获得了广泛的应用 ,尤其是在航空、航天、石油、化工、交通、生态等工程系统领域较为深入 ,促进了社会的进步与科技的发展。由于运输系统管理（TSM）广义理念和智能交通（ITS）的日益发展，交通仿真技术在交通管理，交通控制，交通规划和交通设施改造中得到越来越广泛的应用.随着我国国民经济的迅猛发展，城市机动车的保有量逐年上升，由此引起的城市交通阻塞和混乱情况日益严重，这就需要对城市微观交通系统进行必要的建模和模拟，科学的分析，找出合理的解决措施。
本文旨在从具有典型研究意义的交通模型中探讨路网通行能力与各种交通要素之间的关联。通过建立一个高度可信的仿真模型，研究微观的车辆，信号灯，道路对整个交通网络通行能力的影响，从单一交叉路口到这个整个仿真路网的交通流进行重复科学的计算机推演，得到交通流状态变量随空间和时间的变化、分布规律及其与交通控制要素间的关系。同时本文并对其中的关键路径算法进行研究和实现，为城市智能交通系统的搭建提供技术理论支持。
关键词 交通；计算机仿真；VISSIM；模型
Abstract:At present, with the development of computer technology, system simulation technology has been widely used at home and abroad, especially in the fields of aviation, aerospace, petroleum, chemical industry, transportation, ecological engineering system deeply, to promote social progress and the development of technology. Because of transportation system management (TSM) and the generalized concept of intelligent transportation (ITS) development, traffic simulation technology in traffic management, traffic control, has been widely used in traffic plan and traffic facilities transformation. With the rapid development of our national economy, city motor vehicle retains the volume rises year by year, the city traffic jams and chaotic situation is becoming more and more serious, which requires the modeling and Simulation of necessary for the city micro transportation system, scientific analysis, find out the reasonable solutions.
This article aims to research significance from a typical traffic model discussed about road network capacity and the association between various transport elements. By establishing a very highly credible simulation model to study the microscopic study vehicles, lights, road traffic capacity of the entire transport network effects, from a single intersection to the entire road network traffic flow simulation repeated computer science deduction, get traffic flow state variables change over space and time, and traffic control distribution and relationship between the elements. At the same time this article and one of the critical path algorithm research and implementation for the city to build intelligent transportation system to provide technical support for the theory.
Keywords Transport Computer simulation VISSIM Model
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