城市立体交叉口改造设计——以天目路立交为例

Reconstruction's Design of Urban Stereo Intersection

立体交叉口连接的是主干路或快速路,车流量比较大,改造设计时需要统筹兼顾交通需求和现状。以天目路立交为例,以北横通道新建工程为契机,以缓解现状立交拥堵为首要任务,对天目路立交进行改造设计。改造过后,天目路立交为四层立交,实现南北高架和北横通道全互通,且兼顾天目西路与南北高架的连通,同时使得现状立交的拥堵问题得到明显的改善。

Stereo intersection connect arterial road with expressway, traffic is relatively large. In the Transformation design, the retrofit design need balanced traffic demand and the present situation. In this paper, Tianmu Road stereo interchange is an example. As an opportunity of the new project of the northern cross channel, the retrofit design of Tianmu Road stereo interchange＇s first task relieve congestion of present stereo intersection. After transformation, Tianmu Road stereo interchange is four level interchange, which can connect North South elevated with North cross channe and connect North South elevated with Tianmu Road （West）,at the same time ,which can improve traffic congestion significantly.