Tianjin metro line 4 is the backbone line from northwest to southeast of the city, and from the southeast corner, its southern lines run through Heping road, Qufu road, Chenglin road and Jinbin avenue, and reach to Civil Aviation University. The total length is 19km and there are 14 stations, all of which are underground stations.It can transfer with metro lines No. 2, 3, 5 and 9.
It is expected to be put into use in 2021. After the opening of the south section of metro line 4, the daily passenger flow of the entire subway network will reach more than 2.5 million people, basically completing the backbone network and further improving the ring and layout structure.
In April 2019, our company successfully won the bidding of the south part project for Tianjin metro line 4.