Type Rapid transit Stations 8 Character Rapid transit | Status In operation Opened July 1, 2014 | |
 | ||
Daily ridership 53,000 (2014 Avg.)
94,000 (2014 Peak) Owner China Railways Airport Construction Group Terminis Lukou Airport Station, Nanjing South Railway Station | ||
The Nanjing–Gaochun Intercity Railway, commonly known as the Ninggao Intercity Railway (Chinese: 宁高城际轨道交通; pinyin: Níng gāo chéng jì guǐdào jiāotōng) or Airport Line is a suburban metro rail line serving the southern suburbs of Nanjing. In early planning documents, it was called Line 6 of Nanjing Metro; Phase I is now designated as Line S1 of the city's metro system, and the under-construction extension is designated as Line S9.
The Ninggao Line's first stage connects Nanjing South Railway Station with Nanjing Lukou International Airport. It is 34.9 km long has 8 stations. The line started construction on December 27, 2011, and was opened on July 1, 2014.
A future extension of the line will start from Xiangyulunan station; the 6th station from Nanjing South Railway Station, and extend further south, to Gaochun District, for the total length of 85.8 km.
In September 2011 a contract for 15 6 car Type B metro trains was given to CSR Corporation Limited, with the first train arriving in August 2013.