G99 Taiwan Ring Expressway

The Taiwan Ring Expressway (Chinese: 台湾环线高速公路) was a proposed, hypothetical expressway encircling the island of Taiwan as part of the National Trunk Highway System of the People's Republic of China. It never came into fruition, though, due to the political status of Taiwan. The People's Republic of China claims control over Taiwan, but has never administered it. Taiwan is governed by the Republic of China, which has its own highway system and does not recognize the designation by the People's Republic of China.

According to the People's Republic of China, the expressway would have passed through the cities of Taipei, Hsinchu, Taichung, Tainan, Kaohsiung, Taitung, Hualien, Yilan, Keelung, before returning to Taipei.^[1]

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  China Expwy G99 sign with name
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  China Expwy G99 sign with no name

Cancellation

In the 71118 plan of 2017, G99 was officially removed off of the books. This announcement was reaffirmed during the July 2022 expansion.

The "G99" number is currently used in the NTHS for metropolitan area ring roads (G99XX), which are somewhere between city ring roads (GXX0X) and orbitals (G9X) in degree of importance.

Notes

References

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  Expressways of the National Trunk Highway System of China

Primary

• G1
• G2
• G3
• G4
• G5
• G6
• G7
• G10
• G11
• G12
• G15
• G16
• G18
• G20
• G22
• G25
• G30
• G35
• G36
• G40
• G42
• G45
• G50
• G55
• G56
• G59
• G60
• G65
• G69
• G70
• G72
• G75
• G76
• G78
• G80
• G85
• G91
• G92
• G93
• G94
• G95
• G98
• G99

Auxiliary

Spur	G0111 G0112 G0211 G0212 G0311 G0411 G0412 G0413 G0511 G0512 G0513 G0611 G0612 G0613 G0615 G0616 G0711 G0712 G1011 G1012 G1013 G1015 G1016 G1017 G1111 G1112 G1113 G1115 G1116 G1117 G1118 G1119 G1131 G1211 G1212 G1213 G1215 G1216 G1511 G1512 G1513 G1514 G1515 G1516 G1517 G1518 G1519 G1531 G1532 G1533 G1534 G1535 G1536 G1611 G1612 G1811 G1812 G1813 G1815 G1816 G1817 G1818 G2011 G2012 G2211 G2511 G2512 G2513 G2515 G2516 G2517 G2518 G2519 G2531 G3011 G3012 G3013 G3014 G3015 G3016 G3017 G3018 G3019 G3031 G3032 G3033 G3035 G3036 G3511 G3512 G3611 G3612 G3613 G3615 G4011 G4012 G4013 G4015 G4211 G4212 G4213 G4215 G4216 G4217 G4218 G4219 G4231 G4511 G4512 G4513 G4515 G5011 G5012 G5013 G5015 G5016 G5511 G5512 G5513 G5515 G5516 G5517 G5518 G5611 G5612 G5613 G5615 G5616 G5617 G5618 G5911 G5912 G6011 G6012 G6511 G6512 G6517 G6911 G7011 G7012 G7013 G7211 G7212 G7511 G7512 G7611 G7612 G8011 G8012 G8013 G8511 G8512 G8513 G8515 G8516 G8517 G9111 G9211 G9411 G9511 G9811 G9812 G9813
Parallel	G0121 G0122 G0321 G0322 G0323 G0421 G0422 G0423 G0424 G0425 G1221 G1521 G1522 G1523 G3021 G4221 G4222 G4223 G5021 G5621 G6021 G6022 G6023 G6025 G6521 G6522 G7021 G7221 G7521 G7522 G9221
Metropolitan Area Ring	G9901 G9902 G9903 G9904 G9905 G9906 G9907 G9908 G9909 G9910 G9911 G9912
City ring	G0401 G0601 G0602 G1001 G1101 G1501 G1502 G1503 G1504 G1505 G1506 G1507 G1508 G2001 G2002 G2003 G2004 G2201 G2501 G2502 G2503 G2504 G3001 G3002 G3003 G4001 G4201 G4202 G4501 G5001 G5601 G5901 G6001 G6002 G7201 G9801

• Lists
  • Primary
  • Auxiliary
• China National Highways
  

Note: italic indicates the routes that were available in 2013 network plan, but removed in 2022 network plan

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