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介绍了快速路环线转角立交节点处的选形设计过程,体现了基于交通功能分析的立交选形设计思想。总结归纳了三类环线与射线的整幅或分幅形式及其各自适用条件。最后以常州市“日”字型快速路系统东北角龙城大道-青洋路立交设计为例,介绍了随射线方向道路规划的调整而立交匝道形式作相应调整的设计经过。这对环线转角节点立交选形设计有一定的指导作用。
This paper introduces the process of the selection design at the corner interchange of the express way and the design concept of the interchange based on the traffic function analysis. Summarizes the three kinds of ring and ray of the whole or sub-form and their respective conditions. Finally, taking the design of Longcheng Avenue - Qingyang Road Interchange in northeastern corner of Changzhou “Japanese ” font type expressway system as an example, this paper introduces the design of the corresponding adjustment of the on-ramp shape with the adjustment of the radial direction road planning. This ring corner node interchange design choice has a guiding role.