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本文对城市环形交叉口的主要技术经济指标,采用与信号交叉口对比的方法进行了初步分析。计列出八项指标,分析了环交的主要优缺点及适用条件,并提出在新建中小城市干道、大城市次干道及城乡结合处的道路交叉口采用不同形式的环形交叉是适宜的,关键在于作好交通预测和分析、提高设计质量、优化交叉口设计方案。
In this paper, the main technical and economic indicators of urban roundabouts are compared with those of signalized intersections. It lists eight indicators, analyzes the main advantages, disadvantages and applicable conditions of the circular economy and puts forward that it is appropriate and appropriate to adopt different forms of roundabouts at the road junctions of the new trunk roads in major cities, metropolitan minor roads and urban-rural areas, and the key Is to make traffic prediction and analysis, improve design quality, optimize the intersection design.