常规公交竞合网络复杂性及演化模型研究

发布时间：2018-05-27 06:02

本文选题：公交网络 + 竞合关系　；参考：《哈尔滨工业大学》2016年硕士论文

【摘要】：竞争合作关系遍及不同的系统及领域,常见于生物系统中。在公交网络中也存在着竞争合作关系,是公交网络中常见的规律现象,也是公交网络的一种重要特征。但是,对于公交网络中的竞争合作关系鲜有研究,而且忽略了公交网络在竞争合作方面的特征。因此,为了揭示网络中竞争合作方面存在的规律特征、充分全面地认识公交网络,本文将在研究公交线路竞争合作关系的基础上,采用复杂网络理论发现公交网络在竞争合作方面的特征。论文首先分析了公交线路之间的竞争合作关系,给出了公交线路之间存在竞争、合作关系所需要满足的条件。基于公交线路之间存在竞争合作关系的条件,将线路之间的关系划分为不同的类型。根据两条公交线路之间的重合站点数及线路上的合作站点数,给出线路之间的合作强度的定义及计算公式;根据两条线路之间形成的竞争点对个数及线路上的站点数,给出线路之间竞争强度的定义及计算公式。由于参与竞争与合作的双方在竞争合作过程中的地位是不同的,因此论文提出用竞争系数与合作系数反映公交线路在竞争和合作过程中的差异。然后采用复杂网络理论,建立公交竞争、合作网络,并以哈尔滨公交网络为例进行了实例分析,获得了公交网络特征。线路之间适当的竞争可以增加乘客出行的选择,从而提高公交的服务水平,但是过度的竞争不利于公交资源的有效利用与网络功能的发挥。相对竞争而言,在公交网络中更注重线路之间的合作,公交线路之间的合作能够最大化的利用有限的公交资源,为乘客出行提供更多的出行路径。本文从合作角度入手,基于线路之间的合作强度提出描述公交线路重要程度评价指标,并提出用数理统计中的箱线图识别哈尔滨公交网络中的关键线路。论文经过对哈尔滨公交网络统计特征的实证研究,得到公交网络演化机制,基于线路择优与站点随机游走演化模型,通过对已有模型的分析提出了改进的公交网络演化模型;考虑网络中的竞争合作关系,从多个角度、较全面的对本文提出的改进模型的合理性进行了验证。论文通过对公交网络中竞争合作关系的研究,提出了公交线路间竞争、合作强度定义及计算公式,掌握了公交网络中竞争、合作方面的特征,基于合作强度识别了关键线路,并通过改进的演化模型重现了公交网络的主要特征。根据部分研究结论,为公交线路规划给予了一定的参考。
[Abstract]:Competition and cooperation are common in biological systems and systems. Competition and cooperation also exist in the public transport network, which is a common regular phenomenon in the public transport network and an important feature of the public transport network. However, there is little research on the competitive cooperative relationship in the public transport network, and the characteristics of the bus network in the competitive cooperation are ignored. Therefore, in order to reveal the characteristics of competition and cooperation in the network, and fully understand the public transport network, this paper will study the competitive cooperative relationship of bus lines. The complex network theory is used to find out the characteristics of bus network in the aspect of competition and cooperation. This paper first analyzes the competitive and cooperative relationship between bus lines, and gives the conditions of competition and cooperation between bus lines. Based on the conditions of competitive cooperation between bus lines, the relationship between the lines is divided into different types. According to the number of coincidence stations between two bus lines and the number of cooperative stations on the line, the definition and calculation formula of the cooperation intensity between the two lines are given, and the number of competition points formed between the two lines and the number of stations on the line are also given. The definition and calculation formula of competition intensity between lines are given. Because the two sides involved in the competition and cooperation have different positions in the process of competition and cooperation, the paper proposes to use the competition coefficient and the cooperation coefficient to reflect the difference of the bus route in the process of competition and cooperation. Then the complex network theory is used to establish the bus competition and cooperative network. The example of Harbin bus network is analyzed and the characteristics of the bus network are obtained. The proper competition between the lines can increase the choice of passenger travel and improve the service level of public transport, but excessive competition is not conducive to the effective use of public transport resources and the function of the network. Relative to the competition in the bus network more attention to the cooperation between lines the cooperation between bus lines can maximize the use of limited public transport resources for passengers to travel to provide more travel paths. From the point of view of cooperation, based on the intensity of cooperation between lines, this paper puts forward an evaluation index to describe the importance of bus lines, and proposes to use the box diagram in mathematical statistics to identify the key lines in Harbin bus network. Through the empirical study on the statistical characteristics of Harbin public transport network, the evolution mechanism of public transport network is obtained. Based on the evolution model of route selection and random walk of stations, the improved evolution model of public transport network is put forward through the analysis of existing models. Considering the relationship of competition and cooperation in the network, the rationality of the improved model proposed in this paper is verified from several angles. Through the research of the competition and cooperation relationship in the public transport network, the paper puts forward the definition and calculation formula of the competition and cooperation intensity among the bus lines, grasps the characteristics of the competition and cooperation in the public transport network, and identifies the key lines based on the cooperation intensity. The main characteristics of the bus network are reproduced by the improved evolutionary model. According to some conclusions of the study, it gives a certain reference for bus route planning.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U491.17

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