Line_4_(Nanjing_Metro)
Line 4 (Nanjing Metro)
Metro line in Nanjing, China
Line 4 is an east-west line on the Nanjing Metro, running from Xianlinhu to Longjiang. It consists of 18 stations and spans a total of 33.75 km (20.97 mi). The line color is purple, and it first opened on January 18, 2017. [2]