快速路合流区设计与交通控制关键指标研究
发布时间：2019-05-29 02:53
【摘要】：近年来,很多城市修建了大量的城市快速路来缓解城市内的交通拥堵问题。在车量饱和度相对较低的情况下的确对城市道路拥堵等问题起到了很大的改良效果,但由于我国经济水平的普遍提升,私家车已逐步走进了家家户户,使得汽车保有量以井喷的状况迅速增长。很多快速路在高峰时段也发生了十分严峻的交通拥堵问题,而这些拥堵主要集中在快速路的合流区部分。本论文以“城市快速路合流区设计与交通控制关键指标研究”为题目。首先通过采集交通监控录像和无人机航拍收集得到了合流区车辆运行视频;利用AutoScope2004设备对合流区交通视频进行处理统计,得到合流区交通运行数据;通过对视频资料进行人工观测分析,得到快速路合流区交通行为特征;通过交通数据和交通行为特征分析总结出间隙接受理论的不足,并对合流区交通流Breakdown现象及其理论进行了简要分析。其次利用交通流Breakdown理论的相关知识提出了快速路合流区设计与交通控制的研究方法,运用交通流Breakdown理论提出了快速路合流区设计与交通控制方法。就合流区设计而言,提出了合流区加速车道长度设计的计算方法:就合流区交通控制而言,研究了合流区匝道控制方法;针对流量控制提出了合流区匝道交通量阈值指标确定的计算方法;针对汇入控制建立了一种城市快速路升降式隔离桩汇入控制系统;通过算例分析验证了论文研究结论的可行性。最后本文依托元胞自动机理论借助MATLAB软件对上述结果进行仿真验证分析,仿真结果表明本文得出的结果科学合理。说明本文研究成果能为快速路合流区设计与交通控制方法提供一定的参考价值。
[Abstract]:In recent years, many cities have built a large number of urban express roads to alleviate the traffic congestion problem in the city. In the case of relatively low traffic saturation, it has indeed played a great role in improving urban road congestion and other problems, but due to the general improvement of the economic level of our country, private cars have gradually entered every household. As a result of the car ownership to blowout condition rapid growth. Many express roads also have serious traffic congestion problems during peak hours, which are mainly concentrated in the confluence area of the expressway. In this paper, the research on the key indexes of urban expressway confluence area design and traffic control is taken as the title. Firstly, the vehicle operation video in the confluence area is collected by collecting traffic monitoring video and drone aerial photography, and the traffic video in the confluence area is processed and counted by using AutoScope2004 equipment, and the traffic operation data in the confluence area is obtained. Through the manual observation and analysis of the video data, the traffic behavior characteristics of the confluence area of expressway are obtained. Based on the analysis of traffic data and traffic behavior characteristics, the shortcomings of gap acceptance theory are summarized, and the Breakdown phenomenon and theory of traffic flow in confluence area are briefly analyzed. Secondly, based on the relevant knowledge of traffic flow Breakdown theory, the research methods of expressway confluence zone design and traffic control are put forward, and the traffic flow Breakdown theory is used to put forward the design and traffic control method of expressway confluence zone. As far as the design of confluence zone is concerned, the calculation method of acceleration lane length design in confluence zone is put forward: as far as the traffic control in confluence zone is concerned, the ramp control method in confluence zone is studied. Aiming at the flow control, the calculation method of determining the threshold index of ramp traffic volume in confluence area is put forward, and a control system of lifting isolated pile in urban expressway is established for the import control. The feasibility of the research conclusion is verified by an example. Finally, based on the theory of cellular automata and MATLAB software, the above results are verified and analyzed, and the simulation results show that the results obtained in this paper are scientific and reasonable. It is shown that the research results in this paper can provide certain reference value for the design of confluence zone and traffic control method of expressway.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491
[Abstract]:In recent years, many cities have built a large number of urban express roads to alleviate the traffic congestion problem in the city. In the case of relatively low traffic saturation, it has indeed played a great role in improving urban road congestion and other problems, but due to the general improvement of the economic level of our country, private cars have gradually entered every household. As a result of the car ownership to blowout condition rapid growth. Many express roads also have serious traffic congestion problems during peak hours, which are mainly concentrated in the confluence area of the expressway. In this paper, the research on the key indexes of urban expressway confluence area design and traffic control is taken as the title. Firstly, the vehicle operation video in the confluence area is collected by collecting traffic monitoring video and drone aerial photography, and the traffic video in the confluence area is processed and counted by using AutoScope2004 equipment, and the traffic operation data in the confluence area is obtained. Through the manual observation and analysis of the video data, the traffic behavior characteristics of the confluence area of expressway are obtained. Based on the analysis of traffic data and traffic behavior characteristics, the shortcomings of gap acceptance theory are summarized, and the Breakdown phenomenon and theory of traffic flow in confluence area are briefly analyzed. Secondly, based on the relevant knowledge of traffic flow Breakdown theory, the research methods of expressway confluence zone design and traffic control are put forward, and the traffic flow Breakdown theory is used to put forward the design and traffic control method of expressway confluence zone. As far as the design of confluence zone is concerned, the calculation method of acceleration lane length design in confluence zone is put forward: as far as the traffic control in confluence zone is concerned, the ramp control method in confluence zone is studied. Aiming at the flow control, the calculation method of determining the threshold index of ramp traffic volume in confluence area is put forward, and a control system of lifting isolated pile in urban expressway is established for the import control. The feasibility of the research conclusion is verified by an example. Finally, based on the theory of cellular automata and MATLAB software, the above results are verified and analyzed, and the simulation results show that the results obtained in this paper are scientific and reasonable. It is shown that the research results in this paper can provide certain reference value for the design of confluence zone and traffic control method of expressway.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491
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