Passenger service commences on Line 22 of Guangzhou Metro and on Lines 7 and 9 of Hangzhou Metro, China April 2, 2022 | Asia Pacific News, News The first section of Guangzhou Metro Line 22 has commenced passenger operation. The section spans 18.2 km from Chentougang in the west to Panyu Square in the east, covering four stations. Additionally... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password