成军宇 王宁 白彦凯



摘 要:道路交叉口是道路交通流的集中地,它既是道路系统中的重要节点,也是容易发生道路交通问题的区域。随着中国国民经济的不断发展,城镇化进程日益加快,产生了一系列的城市交通问题,也使得城市交通体系的压力逐年加大。道路交叉口的设计方案的合理性,将影响到城市交通道路工程的整体安全性以及畅通性。采用科学合理的规划理念,先进的方式和技术手段进行交叉口的设计尤为重要。文章以武陟县连固线和云叶线交叉口为例,通过分析交通信号交叉口的交通特性和机动车辆运行特性,找出存在的交通问题。制定优化设计方案,并使用VISSIM仿真软件进行仿真、评价其优化设计方案。
关键词:城市交通路口 连固线与云叶线 优化设计 VISSIM仿真
Optimization Design of Urban Traffic Intersection based on VISSIM Simulation
Cheng Junyu Wang Ning Bai Yankai
Abstract:Road intersection is the concentration of road traffic flow, which is not only an important node in the road system, but also an area prone to road traffic problems. With the continuous development of China's national economy, the urbanization process is accelerating, resulting in a series of urban transportation problems, which also makes the pressure on the urban transportation system increase year by year. The rationality of the design scheme of road intersections will affect the overall safety and smoothness of urban traffic road projects. It is particularly important to adopt scientific and reasonable planning concepts, advanced methods and technical means to design intersections. Taking the intersection of Liangu Line and Yunye Line in Wuxian County as an example, this paper analyzes the traffic characteristics of traffic signal intersections and the operation characteristics of motor vehicles to find out the existing traffic problems, formulates the optimization design plan, and uses VISSIM simulation software to simulate and evaluate the optimization design scheme.
Key words:urban traffic intersection, connecting line and cloud leaf line, optimization design, VISSIM simulation
1 背景
道路作為城市交通的主动脉,将各个道路交叉口进行连接,道路交叉口的顺畅与否直接决定了整个道路交通是否顺畅,从而影响到整个城市,同时道路交叉口也是整个城市车辆与人流交汇的重要节点,由各个方位的车辆、各种的车辆组成了复杂的交通状况,是道路拥堵的主要矛盾焦点,从而非常容易引起车祸与堵塞,也由此使得道路交叉口成为了城市中非常混乱的交通部分,交通事故的多发、拥堵导致了道路网通过能力严重下降,而杂乱的道路交叉口也就此成为城市高效运行的阻碍。
交叉口是城市交通中问题最多的部分,通过选择正确的管理形式和正确的渠化设计措施,优化现有问题,组织交通模式,可以充分利用路口的容量,合理利用路口的空间资源,保证车辆沿路的安全和高效运行,减少路口的事故,改善整个城市路网的连接现状。……