[1] The line begins at Gucun Park in Baoshan District at its northern end, and terminates at Zizhu Hi-tech Park[2] in Minhang District at its southern end, via Shanghai West Railway Station and Shanghai South Railway Station.

[7] However, on 24 December 2020, Shanghai Metro officials announced that the opening would take place in 2021, prior to the start of the Chinese New Year.

[8] On January 19, 2021, there is a partial collapse in an under-construction Exit 9 of Zizhu Hi-tech Park station.

On May 20, 2021, according to the official announcement, due to the accumulation of water between Loushanguan Road and East China University of Science and Technology, Line 15 will operate at a speed limit, which is expected to be delayed for more than 25 minutes.

During the same period, CASCO has successfully put into service its Urbalis 888 signalling solution on six of these metro lines in Chengdu and Shanghai.