【摘要】 交通难已成为困扰大中城市发展的普遍问题，亟待发展有效的交通流理论来指导这一问题的解决。本文从交通流的动力分析和交叉口延滞模型两大方面评介交通流理论研究进展和现状，列举了有关的数学、力学模型，分析了它们的效用与不足之处。更多还原

【Abstract】 Traffic difficulties have become a general perplexed problem in thedevelopment of large citics, so it is urgent to develop an effective theory oftraffic floty in order to workout a solution of the problem. In this paper, theprogress and up-to-date status of the investigation of traffic flow theory arereviewed in two main aspects, i.e., the dynamical analysis of traffic flow andthe models deseribing junction delays.Various related mathematical and dynamicalmodels are also listed and their validation and limitations analysed.更多还原