混合交通环境下车速离散时空演化机理研究
发布时间：2018-11-15 16:23
【摘要】：车速离散作为“人-车-道路-环境”共同作用下车速的总体表现,是影响交通安全的重要因素之一。本文主要研究混合交通环境下公路的车速离散现象,而干线公路城镇段是典型的混合交通环境,兼有干线公路功能及城镇道路功能的双重特征,道路行车环境更为复杂。因此,对于以干线公路城镇段为典型代表的混合交通环境,车速离散现象尤为突出,其车速离散的演化机理问题异常复杂,需要特别的关注。本文结合我国道路混合交通环境的基本特点,研究混合交通环境下基于路段的车速离散程度的描述方法；对干线公路城镇段进行分类,明确本文重点研究对象；探索无人机航拍的调查方法,以获得车辆在较长路段上的速度波动,便于探究路段的车速离散影响因素；从道路条件、交通条件、横向干扰等方面探寻不同条件下的车速离散的基本特征与规律；基于因子分析方法,探索混合交通环境下高维度影响因素与车速离散的内在联系；运用多元线性回归模型,构建多层次的车速离散性致因层次结构模型。基于车速离散性致因层次结构模型,提出降低车速离散性、提高干线公路城镇段安全性的对策。本文为系统认识混合交通环境下车速离散的形成及时空演化机理提供新方法,是进一步研究车速离散性与交通安全的关系的理论基础,为道路交通管理部门科学制定交通管控措施提供理论依据。
[Abstract]:Speed dispersion is one of the important factors affecting traffic safety as the overall performance of speed under the joint action of "man, car, road and environment". This paper mainly studies the discrete phenomenon of highway speed in mixed traffic environment, and the urban section of trunk highway is a typical mixed traffic environment, which has the dual characteristics of both the function of trunk road and the function of urban road, so the driving environment of road is more complex. Therefore, for the mixed traffic environment represented by the urban section of the trunk highway, the phenomenon of speed dispersion is particularly prominent, and the evolution mechanism of the speed dispersion is extremely complex and needs special attention. According to the basic characteristics of the mixed traffic environment of our country, this paper studies the description method of the speed dispersion degree based on the road section in the mixed traffic environment, classifies the urban section of the trunk highway, and clarifies the research object of this paper. The investigation method of UAV aerial photograph is explored in order to obtain the speed fluctuation of the vehicle on the longer road section, and it is convenient to explore the discrete influence factors of the speed of the road. This paper explores the basic characteristics and rules of vehicle speed discretization under different conditions from road condition, traffic condition and lateral interference, and explores the internal relationship between high dimensional influence factors and speed dispersion in mixed traffic environment based on factor analysis method. The multivariate linear regression model is used to construct a multilevel hierarchical model of speed discreteness. Based on the hierarchical structure model of vehicle speed discretization, this paper puts forward some countermeasures to reduce the speed dispersion and improve the safety of the urban section of the trunk highway. This paper provides a new method for the systematic understanding of the formation and space-time evolution mechanism of vehicle speed discretization in mixed traffic environment, which is the theoretical basis for further studying the relationship between speed discreteness and traffic safety. It provides theoretical basis for road traffic management department to make traffic control measures scientifically.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491
本文编号：2333802
[Abstract]:Speed dispersion is one of the important factors affecting traffic safety as the overall performance of speed under the joint action of "man, car, road and environment". This paper mainly studies the discrete phenomenon of highway speed in mixed traffic environment, and the urban section of trunk highway is a typical mixed traffic environment, which has the dual characteristics of both the function of trunk road and the function of urban road, so the driving environment of road is more complex. Therefore, for the mixed traffic environment represented by the urban section of the trunk highway, the phenomenon of speed dispersion is particularly prominent, and the evolution mechanism of the speed dispersion is extremely complex and needs special attention. According to the basic characteristics of the mixed traffic environment of our country, this paper studies the description method of the speed dispersion degree based on the road section in the mixed traffic environment, classifies the urban section of the trunk highway, and clarifies the research object of this paper. The investigation method of UAV aerial photograph is explored in order to obtain the speed fluctuation of the vehicle on the longer road section, and it is convenient to explore the discrete influence factors of the speed of the road. This paper explores the basic characteristics and rules of vehicle speed discretization under different conditions from road condition, traffic condition and lateral interference, and explores the internal relationship between high dimensional influence factors and speed dispersion in mixed traffic environment based on factor analysis method. The multivariate linear regression model is used to construct a multilevel hierarchical model of speed discreteness. Based on the hierarchical structure model of vehicle speed discretization, this paper puts forward some countermeasures to reduce the speed dispersion and improve the safety of the urban section of the trunk highway. This paper provides a new method for the systematic understanding of the formation and space-time evolution mechanism of vehicle speed discretization in mixed traffic environment, which is the theoretical basis for further studying the relationship between speed discreteness and traffic safety. It provides theoretical basis for road traffic management department to make traffic control measures scientifically.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491
【参考文献】
相关期刊论文 前9条
1 王海鹏;曲大义;杨万三;郭涛;郝杰;;基于车型比例的速度离散与交通事故率关系研究[J];青岛理工大学学报;2013年03期
2 郝媛;徐天东;孙立军;;交通扰动与交通流稳定性机理解析[J];武汉理工大学学报(交通科学与工程版);2010年02期
3 徐松;唐伯明;刘唐志;尚婷;;城郊公路车速离散性影响因素灰熵分析[J];公路与汽运;2009年01期
4 阎莹;王晓飞;张宇辉;郭忠印;;高速公路断面运行车速分布特征研究[J];中国安全科学学报;2008年07期
5 钟连德,荣建,周荣贵,张智勇;快速路交通流中车速特性研究[J];公路;2004年12期
6 裴玉龙,程国柱;高速公路车速离散性与交通事故的关系及车速管理研究[J];中国公路学报;2004年01期
7 李晶,徐广勇,刘丽;双车道自由流车速分析[J];辽宁省交通高等专科学校学报;2003年04期
8 王殿海,汪志涛;车队离散模型研究[J];交通运输工程学报;2001年01期
9 蒋仁言;一种可有双峰形状的概率密度函数[J];长沙交通学院学报;1997年01期
相关博士学位论文 前1条
1 程国柱;高速道路车速限制方法研究[D];哈尔滨工业大学;2007年
，本文编号：2333802
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2333802.html
