Line 15 of the Shenzhen Metro is a Phase V expansion metro line under construction, which will connect the districts of Bao'an, Nanshan and Qianhai for 32.2 kilometers and 24 stations.[1][2][3] Construction started on 28 June 2023,[4] and the line is expected to open in December 2028. The line is proposed to use 4 car and 6 car type A trains.[5]