城市道路可视化描述方法的研究

发布时间：2018-06-12 02:10

本文选题：道路可视化仿真 + 底层路网　；参考：《大连交通大学》2014年硕士论文

【摘要】：随着城市的不断发展和人们生活水平的提高,城市汽车保有量不断上升,但是现有道路的承载力有限,城市道路的扩展速度又远远跟不上汽车的增长速度,从而导致城市交通拥堵、交通混乱、环境污染等问题的产生。如何缓解这一矛盾成为需要迫切解决的问题。随着计算机技术的发展和人们对城市道路交通系统的深入研究,应用计算机技术对城市道路交通的管理和交通流监测进行仿真,不仅能对现有道路交通流进行监控和合理指引,而且能够合理的评估未来交通规划的方案,提出科学的规划措施,既能够改善交通状况又避免了人力和财力上的浪费。本文是为开发城市道路交通仿真系统提供底层路网模型,在对城市道路系统模型进行分析和研究的基础上,为实现道路可视化描述提供一种新的方法,为道路可视化仿真提供理论基础。本文首先参考了国内外道路交通仿真系统的发展状况,并且对现有的道路结构和模型进行了分析,然后从道路的几何形态和逻辑结构两方面分别做出论述和研究。提出适合道路可视化仿真的几何模型和数据结构模型：几何模型是应用道路线型的理论将道路看做是多种线型的组合,定义交点坐标根据线型方程指导道路走向；数据结构模型包括了车道模型和复合节点模型,复合节点模型是针对道路交叉口提出的,能够体现车道在交叉口的运行轨迹。最后验证了车道模型和复合节点模型的连接能共同完成对多种道路网络的逻辑结构的描述,并且利用Visual Studio2008对SQL Server2008数据库初步实现了路网中车辆行驶路径的查找和管理。本文提出的可视化仿真模型为现代城市道路仿真系统提供了理论参考。
[Abstract]:With the continuous development of the city and the improvement of people's living standard, the number of urban cars is increasing, but the carrying capacity of the existing roads is limited, and the expansion speed of urban roads is far from keeping up with the growth rate of cars. Thus leading to urban traffic congestion, traffic chaos, environmental pollution and other problems. How to alleviate this contradiction has become an urgent problem to be solved. With the development of computer technology and the deep research of urban road traffic system, the application of computer technology to the simulation of urban road traffic management and traffic flow monitoring can not only monitor and guide the existing road traffic flow reasonably. Furthermore, it can reasonably evaluate the future traffic planning scheme and put forward scientific planning measures, which can not only improve the traffic situation but also avoid the waste of human and financial resources. This paper provides the underlying road network model for the development of the urban road traffic simulation system. Based on the analysis and research of the urban road system model, a new method is provided for the realization of road visualization. This paper first refers to the development of road traffic simulation system at home and abroad, and analyzes the existing road structure and model. Then from the road geometry and logical structure of the two aspects of the discussion and research. The geometric model and data structure model suitable for road visual simulation are proposed. The geometric model is to use the theory of road alignment to treat the road as a combination of many kinds of lines, and define the intersection coordinates to guide the road direction according to the linear equation. The data structure model includes the driveway model and the compound node model. The compound node model is proposed for the road intersection, which can reflect the track of the lane at the intersection. Finally, it is verified that the connection of the driveway model and the composite node model can describe the logical structure of various road networks together, and the search and management of the vehicle driving path in the road network are preliminarily realized by using Visual Studio 2008 to the SQL Server 2008 database. The visual simulation model presented in this paper provides a theoretical reference for the modern urban road simulation system.
【学位授予单位】：大连交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491

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