基于GIS的城市交通路网格锁传播建模及其动态表达研究

发布时间：2019-05-27 16:14

【摘要】：当代社会,交通对城市发展的作用不言而喻,然而近年来随着交通拥堵问题的加重,交通溢流引起的城市交通路网格锁作为交通拥堵的一种表现形式逐渐引起了人们的关注。城市交通路网格锁预测技术以及在交通地理信息系统(Geographic Information System for Transportation, GIS-T)中交通事件演化显示技术为智能交通系统的重要组成部分,对于提高城市交通智能化管理水平具有很大的推动作用。其中,GIS-T中交通事件演化显示技术以其混合数据结构和强大的地理空间分析功能等优点,近年来迅速发展,被广泛应用于各专业领域。本文以交通波理论为基础,首先对交通溢流现象进行概述,在虚拟路网的几何模型中,对城市交通路网格锁的传播机制进行描述；然后,在交通波分析的基础上,探讨基于停车波模型的排队长度的算法,提出排队长度线性预测模型,为交通路网格锁传播范围的预测问题奠定基础；在此基础上,’将城市交通路网格锁传播范围的研究问题分为建立两个模型的子问题,即：城市交通路网格锁传播模型和排队长度线性预测模型。为解决交通路网格锁形成的动态变化趋势的显式表达问题,本文利用北京超图软件股份有限公司研发的GIS平台,在SuperMap Deskpro.net软件中处理并制作地图,在VS2008环境中利用SuperMap Objects组件和C#语言进行二次开发。首先,制作地图并针对每个图层建立相应的属性表,属性会随着路网中的数据对应更新；然后,通过交叉口溢流查询找到发生溢流的交叉口,将对应的几何对象添加到跟踪图层中,并利用缓冲区分析、跟踪层的应用等功能来实现动态跟踪,从而实现城市交通路网格锁传播的动态可视化表达。综上所述,本文以交通波理论为基础,提出了城市交通路网格锁传播模型,并实现了GIS系统的开发,实验表明,该模型实用有效、系统能够满足实时性、稳定性等要求。本研究为城市交通路网格锁研究领域提供了新的思路,对于该领域的后继工作奠定了一定基础。
[Abstract]:In contemporary society, the role of traffic on urban development is self-evident. However, in recent years, with the aggravation of traffic congestion, the urban traffic network lock caused by traffic overflow has gradually attracted people's attention as a form of traffic congestion. Grid lock prediction technology of urban traffic network and traffic event evolution display technology in traffic geographic information system (Geographic Information System for Transportation, GIS-T) are important components of intelligent transportation system. It plays a great role in improving the intelligent management level of urban traffic. Among them, traffic event evolution display technology in GIS-T has been widely used in various professional fields because of its mixed data structure and powerful geo-spatial analysis function. Based on the theory of traffic wave, this paper first summarizes the phenomenon of traffic overflow, and describes the propagation mechanism of urban traffic network latch in the geometric model of virtual road network. Then, on the basis of traffic wave analysis, the algorithm of queue length based on parking wave model is discussed, and a linear prediction model of queue length is proposed, which lays a foundation for the prediction of grid lock propagation range of traffic network. On this basis, the research on the propagation range of urban traffic network latch is divided into two sub-models, namely, urban traffic network latch propagation model and queue length linear prediction model. In order to solve the problem of explicit expression of the dynamic change trend of traffic network latch, this paper uses the GIS platform developed by Beijing Hypergraph Software Co., Ltd to process and make the map in SuperMap Deskpro.net software. SuperMap Objects component and C # language are used for secondary development in VS2008 environment. First of all, make the map and establish the corresponding property table for each layer, the properties will be updated with the data in the road network. Then, the intersection where the overflow occurs is found through the intersection overflow query, and the corresponding geometric object is added to the tracking layer, and the dynamic tracking is realized by using the functions of buffer analysis and the application of the tracking layer. In order to realize the dynamic visual expression of grid lock propagation in urban traffic network. To sum up, based on the traffic wave theory, this paper puts forward the grid lock propagation model of urban traffic network, and realizes the development of GIS system. The experimental results show that the model is practical and effective, and the system can meet the requirements of real-time, stability and so on. This study provides a new idea for the research field of urban traffic network latch, and lays a certain foundation for the follow-up work in this field.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495

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