合肥市畅通二环·北环快速路改造工程总体设计方案

Overall Design Scheme of Hefei Changtong Ring II·North Ring Expressway Reconstruction Project

针对合肥市畅通二环·北环快速路改造工程总体设计方案进行分析研究。分析了建设条件,对规划进行了解读,得出项目的功能定位和研究的重难点。通过交通流量预测,确定了道路横断面和项目的建设规模。重点对总体布置方案中环线快速路如何有效屏蔽穿城交通进行了研究,统筹考虑立交节点和匝道的布设。最后总结了环线快速路的设计重难点,并就道路断面中复杂的主辅切换系统提出处理措施。

The overall design scheme of Hefei Changtong Ring II·North Ring Expressway Reconstruction Project is analyzed and studied.The construction conditions of the project are analyzed,its planning is interpreted,and the functional orientation,the study essentials and the difficulties are obtained.The road cross section and construction scale of the project are determined through the traffic flow prediction.The overall layout scheme focusing on how to effectively shield the cross-city traffic on the ring expressway is studied.The layout of interchange nodes and ramps is comprehensively considered.Finally,the key and difficult points in the design of the ring expressway are summarized,and the treatment measures for the complex switching system of the main and auxiliary roads in the road section are proposed.