Guangzhou metro line four, the representative color is green. In 2007 Guangzhou subway into public life for ten years, opened Wansheng Wai - Golden Delta section of Metro line. Line four initial driving interval of 9 minutes, daily passenger capacity up to 187000 passengers. In December 28, 2009 14, the No. four line north extending section Wansheng Wai to Jubei Southern officially opened. Four lines according to different sections of passenger demand, business hours for 6:25