【作者】 周斌；

【导师】 李宗平；

【作者基本信息】 西南交通大学 ， 交通运输规划与管理， 2009， 硕士

【摘要】 目前,随着城市规划和交通流理论的发展、交通控制和优化相关研究课题的不断增加,最优路径选择和交通分配求解已经有了比较完善的一套理论基础;但是在具体的运用上,受限于实时性要求强、算法结构复杂、相关部门的定位不清晰、车载指示设备价格昂贵且普及度低等原因,却没有突出的参考指导意义。交通流是一个动态的随机流,真正使相关目标的实现兼具准确性和应用的实时性,才能使交通流理论更好地服务于交通规划和控制,对缩短出行时间和保持交通网络的稳定运行起到促进作用。本文通过对城市道路路段和交叉口交通阻抗的研究,建立了相对符合实际的阻抗函数结构;并运用图与网络理论的研究方法,分析了路网交通流特性,揭示路网点、线、面交通流特性之间的动态联系。在研究路网交通流特性的基础上,通过对比分析,讨论了电路系统与交通系统的相似性,将模拟电路理论应用于交通网络性质研究,利用其直观、简单、求解容易等优点对城市道路网络的交通分配与最优路径选择模型进行优化,以求在实际的运用上能进一步简化算法,从而使相关理论能更好地发挥指导功能,在实时性和民用性上得到进一步发展。更多还原

【Abstract】 At present, theoretical basis of optimum paths searching and traffic assignment has been relatively perfect, with the further development of the transportation planning theory and traffic flow theory, and with the research topics about traffic control and optimization are becoming more and more. While the concrete application of the theory is not that widely, subject to the high-quality requirements of real-time, the complex structure of the algorithms, the function confusion of relevant departments and the low function and penetration of clients. Because of the traffic flow is a dynamic random flow, in order to better serve the transportation planning and control, as well as to shorten the travel time and maintain the stability of the transport network, the model of traffic flow theory must be both immediate and accuracy.This article intervention study in the traffic impedance of urban road sections and intersections, and established a relatively detailed structure of impedance function. Then studied the characteristics of network traffic flow using the analysis method of network theory; and revealed the dynamic relationship between relevant factors. After that, this article applies analog circuit theory to the analysis of transport network, through comparative demonstration the similarity between the circuit system and the transport system, which based on the study on traffic flow characteristics of road network. The theory can be used in field of urban transportation network optimum paths searching and traffic assignment, and expects further developed in getting simplification algorithm, improving the characteristics of real-time and civilian achievable, in contrast to characteristics of intuitive, simple, easy to solve, etc更多还原