高速公路匝道系统优化设计研究

发布时间：2018-06-29 19:50

本文选题：高速公路 + 匝道系统　；参考：《河北工业大学》2015年硕士论文

【摘要】：随着我国社会经济的快速发展,机动车的保有量也在迅速增长,城市之间的联系也越发密切,高速公路的纽带作用更加突出。在该背景下,高速公路的通行需求也在不断增加,而匝道作为连接公路、城市道路和高速公路或两条高速公路之间的接驳路段,具有收费功能的同时,具有高速公路管理控制功能。呈现出设计时速较低,交织点多且功能多的特点,其与高速公路主线的交织是产生交通安全问题,从而影响道路通行能力的核心节点;高速公路的收费功能使其具有复杂的机电设备软硬件支持。而就目前国外内的工程应用上来看,高速公路匝道系统的设计方面存在着各种各样的问题,在理论上也缺乏匝道系统优化的理论依据和科学支撑。本文在分析高速公路匝道系统的交通流特征和影响因素的基础上,以元胞自动机为技术手段建立了高速公路匝道系统交通流的仿真模型,通过仿真实验对高速公路匝道系统在不同的交通需求下收费通道数量、匝道长度、交织区长度等对交通安全、道路通行能力等方面的影响进行分析,通过这些参数的变化实验确定出收费通道数量、匝道长度、交织区长度等具体参数的优化值。具体以承唐高速的安匠收费站匝道路段为研究对象进行实验,得到不同交通需求下收费站通道数量、匝道长度和交织区长度的最优值,以及路面物理设施和路侧电子设施相结合的设计内容,从而为高速公路减少交通事故的发生、保证交通安全、提高通行效率提供理论依据。
[Abstract]:With the rapid development of China's social economy, the number of motor vehicles is also growing rapidly, the relationship between cities is becoming more and more close, and the role of highway ties is more prominent. In this context, the highway traffic demand is also increasing, and the ramp, as a link between highway, urban road and expressway or between two freeways, has the function of charging fees. It has the function of highway management and control. It has the characteristics of low speed, many intertwined points and many functions. The interweaving with the main line of highway is the core node that causes traffic safety problems and affects the road capacity. The toll collection function of freeway makes it have complex hardware and software support of electromechanical equipment. At present, there are various problems in the design of freeway ramp system from the point of view of engineering application in foreign countries, and the theoretical basis and scientific support for the optimization of ramp system are also lacking in theory. Based on the analysis of traffic flow characteristics and influencing factors of freeway ramp system, a simulation model of freeway ramp system traffic flow is established by using cellular automata as technical means. In this paper, the effects of toll lane number, ramp length and interlaced area length on traffic safety and traffic capacity of expressway ramp system under different traffic demand are analyzed through simulation experiments. The optimal parameters such as the number of toll channels, the length of ramp and the length of interlaced area are determined by the experiment of these parameters. Taking the ramp section of Anshi toll station of Chengtang Expressway as the research object, the optimal value of the number of toll station passage, the length of ramp and the length of interlaced area under different traffic demand are obtained. And the design content of the road physical facilities and the road side electronic facilities, thus providing the theoretical basis for the expressway to reduce the occurrence of traffic accidents, ensure traffic safety and improve the efficiency of traffic.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U412.3

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