(朔州绕城高速) "G2002" S2003 Yangquan Ring Expressway (阳泉绕城高速) "G2201" S2201 Changzhi Ring Expressway (长治绕城高速) "G4202" SA2 Chengdu 2nd Ring Expressway (成都第二绕城高速)[1]...

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...