干路快速化升级中现状互通改造的选型研究

Study on Type Selection and Reconstruction of Existing Interchanges in Upgrading of Trunk Road to Expressway

城市建成区干路快速化升级改造中,其难点常在于能体现快速化改造成效的对原有关键立交节点的改造上。通过对道路快速路改造中既有互通式立交改造方式的分析和归纳,研究互通改造的选型特点,总结相应的适用条件。

In the upgrading and reconstruction of trunk roads to expressways in the urban built-up areas,the difficulties often lie in the reconstruction of the original key interchange nodes, which can reflect the reconstruction effect of expressway. According to the analysis and summarization of the reconstruction modes of the existing interchanges in the reconstruction of road to expressway, this paper studies the characteristics of the type selection of interchange reconstruction, and summarizes the relative application conditions.