可变信息标志布设方法研究

发布时间：2019-02-13 13:40

【摘要】：随着城市道路交通的迅速发展,交通拥堵现象日益严重,利用先进的交通诱导系统可以有效的缓解交通拥堵,其中可变信息标志(VMS,Variable Message Signs)受到人们越来越多的关注。但是VMS布设体系尚不成熟,布设过程中大多依靠管理者的经验,缺乏可靠的利用支持,因此造成了VMS的浪费。如何合理布设VMS是当前需要解决的一个问题。本文针对可变信息标志的选址布设问题进行了系统的研究,主要研究内容如下:首先分析了可变信息标志的研究背景和国内外研究现状,然后研究了可变信息标志布设的目标、布设的影响因素以及布设的原则。其次,通过建立基于数学规划的VMS选址模型,以有效信息最大化为目标,利用遗传算法进行求解,获得VMS布设的路段,并利用淄博市的区域路网进行了实例分析。同时,为了综合考虑一些影响布设的定性影响因素,论文建立了基于模糊决策理论的综合评价指标体系,提出了VMS的模糊决策布设方法,给出了相应的算法流程,并利用淄博市区域路网进行了实例分析。最后,为确定VMS在布设路段上的具体位置,论文又对VMS前置距离的影响因素作了详细的分析,并且建立了基于驾驶员对VMS信息响应过程的前置距离模型,对前置距离的上下限阈值范围作了详细的研究,并且在实例分析中给出了VMS布设的前置距离上下阈值。
[Abstract]:With the rapid development of urban road traffic, traffic congestion is becoming more and more serious. The use of advanced traffic guidance system can effectively alleviate traffic congestion, among which variable information sign (VMS,Variable Message Signs) has attracted more and more attention. However, the VMS placement system is still immature. Most of the laying process depends on the manager's experience and lacks reliable utilization support, which results in the waste of VMS. How to set up VMS reasonably is a problem that needs to be solved at present. The main contents of this paper are as follows: firstly, the research background of variable information label and the current research situation at home and abroad are analyzed, and then the target of variable information label placement is studied. The influencing factors of layout and the principle of layout. Secondly, through the establishment of VMS location model based on mathematical programming, with the goal of maximizing effective information, the genetic algorithm is used to solve the road sections laid out by VMS, and the regional road network in Zibo City is used to carry out an example analysis. At the same time, in order to synthetically consider some qualitative influencing factors, a comprehensive evaluation index system based on fuzzy decision theory is established, a fuzzy decision setting method based on VMS is put forward, and the corresponding algorithm flow is given. And use Zibo district road network to carry on the example analysis. Finally, in order to determine the specific location of VMS in the layout section, the paper also makes a detailed analysis of the influence factors of the VMS lead distance, and establishes the pilot distance model based on the driver's response process to VMS information. The upper and lower threshold range of the preposition distance is studied in detail, and the upper and lower threshold of the VMS placement is given in the analysis of an example.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.52

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