Line 22 (Guangzhou Metro)

The line runs approximately north-south, starting at Panyu Square in Panyu District and the end of the line at Fangcun; connecting Nansha and Fangcun, with a total length of 30.8 km (19.14 mi)[2] and 8 stations. The line is an express subway line using 8 car Type D trains with an operating speed of 160 km/h (99 mph).[7] Two distinct stopping patterns will be operated, a local all stop service and an express service. In early planning, Line 22 would interline with Line 18 south of Panyu Square to Wanqingsha.[8] This was later abandoned and Line 22 upon opening will terminate at Panyu Square but track connections between the two lines still exist.

The North extension of Line 22 will be 41.1 km (25.54 mi) in length with 10 new stations and be fully underground.[10] The north extension will directly connect Guangzhou Baiyun Airport while passing through Guangzhou Railway Station and Guangzhou Baiyun Railway Station.[9] On December 31, 2021, the North Extension started construction.[11]

In 2019, Dongguan municipal government proposed Line 22 to be extended east beyond Panyu Square to Nansha Subdistrict and cross the Shiziyang Channel into Dongguan and beyond to Shajing Town in northern Bao'an District, Shenzhen.[12][13] In 2020, Guangzhou Metro began soliciting bids to further investigate the extension of Line 22 into Dongguan and Shenzhen.[14] The first section of this extension a 58.5 kilometres (36.35 mi) segment from Panyu Square to Chang'an, Dongguan were officially included in Guangdong's 14th Five Year Plan in 2021 with provisions for future extension an connection with the Shenzhen Metro.[15][16] The extension to Shenzhen will connect Qingsheng, Jiaomen, Nansha Passenger Port, cross the Pearl River Estuary and extend to Dongguan and finally connect to Shenzhen Guangmingcheng High-speed Railway Station.[9]

When complete a number of different services and express and local stopping patterns will be operated, including Shenzhen/Dongguan to Baiyun Station, Nansha Passenger Ferry Terminal to Baiyun Airport North, Nansha Passenger Port to Huachengjie, etc.[17]