was opened on 31 December 2010. 广州西二环高速公路（北段）今日通车 Archived 2007-01-23 at the Wayback Machine（簡体字中国語） "广州南二环、东新高速、江肇高速12月31日通车 Archived 2011-01-10 at the...

and later Lepu Expressway (乐普高速) S51 was originally Jishan Expressway (蓟汕高速公路) Xinjiang Expressway Numbering Plan 2016-2030 S0501 Kunming Ring Expressway...