基于复杂网络的城市道路建设时序优化研究

发布时间：2018-05-25 09:07

本文选题：复杂网络 + 路网结构评价　；参考：《重庆交通大学》2014年硕士论文

【摘要】：完善的城市道路网络是城市交通的主要载体，是保证交通畅通和满足居民出行需求的基本条件。然而，中国城市道路建设时间短且建设前期缺乏系统的规划，导致城市道路建设的规模和“质量”都落后于发达国家的城市道路建设。尤其是近年来，中国经济持续高速发展，城市机动车保有量不断增加，道路资源供不应求的现象愈加明显，导致了交通拥堵、环境污染等城市交通问题。为解决城市交通问题，需要在不断完善交通管理措施的基础上大量建设城市道路。然而，受公共财政的影响城市道路网络不能在短时间内建设完成，道路建设是一个长期的过程。在这长期的建设过程中，如何选取拟建道路、拟建道路的建设时序等问题都是建设决策的关键。道路建设速度过慢将影响城市经济发展，道路建设速度过快又给公共财政造成过重的负担且造成资源的浪费。因此，如何选取拟建道路和优化道路建设的时序是非常重要的。论文首先从复杂网络拓扑结构评价指标中选取影响城市道路网络承载力和阻塞因子的指标作为道路网络拓扑结构的评价指标。然后，为保证城市道路建设速度与经济发展速度相适应，提出生成计划年建设项目集的方法对建设速度进行约束。建设项目集在确定城市道路网络节点增长速度的基础上，以复杂加权网络节点重要度为指标，从规划节点中选取计划年的拟建节点，按照一定的连接规则将拟建节点连接到现状路网中形成新建道路的集合。其次，采用对偶法将拟建道路抽象为网络节点，从结构、距离、容量、效益方面选取指标构建综合评价体系，运用熵权-理想解法确定最优建设时序。最后，，运用论文中提出的排序方法对重庆市南岸区的道路建设时序进行优化。使用道路网络评价指标对新建路网进行评价，证明新建路网的拓扑结构优于现状路网。论文的研究成果解决了城市道路建设过程中遇到的问题，能够有效的选取建设项目并对建设项目进行综合排序。
[Abstract]:Perfect urban road network is the main carrier of urban traffic, which is the basic condition to ensure the smooth traffic and meet the needs of residents. However, the short time of urban road construction in China and the lack of systematic planning in the early stage of construction lead to the scale and "quality" of urban road construction lagging behind the urban road construction in developed countries. Especially in recent years, with the sustained rapid development of Chinese economy, the increasing number of urban motor vehicles and the shortage of road resources, traffic congestion, environmental pollution and other urban traffic problems have become more and more obvious. In order to solve the urban traffic problems, it is necessary to build a large number of urban roads on the basis of continuous improvement of traffic management measures. However, due to the influence of public finance, urban road network can not be completed in a short time, and road construction is a long-term process. In this long-term construction process, how to select the proposed road, the construction timing of the proposed road is the key to the construction decision. The slow speed of road construction will affect the development of urban economy, and the speed of road construction will cause excessive burden to public finance and waste of resources. Therefore, how to select the proposed road and optimize the timing of road construction is very important. Firstly, from the evaluation index of complex network topology structure, the paper selects the indexes that affect the carrying capacity and congestion factor of urban road network as the evaluation index of road network topology structure. Then, in order to ensure the speed of urban road construction and economic development, the method of generating planning year construction project set is put forward to restrict the construction speed. On the basis of determining the growth rate of urban road network nodes and taking the importance of complex weighted network nodes as the index, the construction project set selects the planned nodes from the planning nodes. According to certain connection rules, the proposed nodes are connected to the existing road network to form a set of newly built roads. Secondly, the proposed road is abstracted into a network node by dual method. The comprehensive evaluation system is constructed by selecting indexes from the aspects of structure, distance, capacity and benefit, and the optimal construction time series is determined by entropy weight and ideal solution. Finally, the sequencing method proposed in this paper is used to optimize the sequence of road construction in Nanan District of Chongqing. The evaluation index of road network is used to evaluate the new road network, which proves that the topology of the new road network is superior to that of the present road network. The research results of the paper solve the problems encountered in the process of urban road construction, and can effectively select construction projects and comprehensive ranking of construction projects.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U412

【参考文献】