贵安复线高速公路共线方案研究

Study on Collinear Scheme of Guiyang-Anshun Double-line Expressway

高速公路网络在不断加密完善,与其他高速的衔接更具复杂性,选择合理的衔接方案非常重要。在高速公路衔接方案分类的基础上,以贵安复线为依托,分析了该项目与拟建高速、已建高速2种典型类型的共线方案和交叉方案,并进行了综合比较。结果表明,共线方案在集约廊道资源、节约土地、节省综合路网投资等方面具有比较优势。类似的高速项目可结合实际建设条件,多角度综合分析共线方案和交叉方案,在满足远期交通需求及通行能力的前提下,重点关注共线方案的优势。

The expressway network is constantly encrypted and improved,and the connection with other highways is more complex.How to choose a reasonable connection scheme is particularly important.On the basis of the classification of the expressway connection scheme,relying on the Gui′an double-line,the collinear scheme and crossover scheme of the two typical types of the proposed expressway and the existing expressway are analyzed by the example,and the comprehensive comparison is made.The results show that the collinear scheme has comparative advantages in intensive corridor resources,saving land,saving investment in comprehensive road network,etc.Similar expressway projects can be combined with the actual construction conditions,multi-angle comprehensive analysis of collinear schemes and crossover schemes,under the premise of meeting long-term traffic needs and traffic capacity,focusing on the advantages of collinear schemes.