Largest metro systems in the world

[Mad_Nick]

Metro system rankings have changed quite a bit in the past number of years as China has been building metros like crazy. Truly fascinating stuff. I thought a list of metros ranked by length would be in order. What can we learn in order to catch up and start once again properly expanding our transit systems?

1. Beijing 🇨🇳
   • Stations: 381
   • Length: 507.0 mi / 816 km
   • Annual ridership: 3,445.7 million
   • Lines: 27
2. Shanghai 🇨🇳
   • Stations: 408
   • Length: 497.5 mi / 796 km
   • Annual ridership: 3,647.6 million
   • Lines: 19
3. Guangzhou 🇨🇳
   • Stations: 265
   • Length: 403.1 mi / 645 km
   • Annual ridership: 3,128.9 million
   • Lines: 15
4. Chengdu 🇨🇳
   • Stations: 296
   • Length: 373.1 mi / 597 km
   • Annual ridership: 2,109.2 million
   • Lines: 13
5. Shenzhen 🇨🇳
   • Stations: 307
   • Length: 345.1 mi / 555 km
   • Annual ridership: 2,705.3 million
   • Lines: 16
6. Chongqing 🇨🇳
   • Stations: 256
   • Length: 325.4 mi / 524 km
   • Annual ridership: 1,325.8 million
   • Lines: 11
7. Nanjing 🇨🇳
   • Stations: 212
   • Length: 324.0 mi / 521 km
   • Annual ridership: 1,010.0 million
   • Lines: 14
8. Moscow 🇷🇺
   • Stations: 233
   • Length: 322.7 mi / 519 km
   • Annual ridership: 2,288.5 million
   • Lines: 16
9. Hangzhou 🇨🇳
   • Stations: 254
   • Length: 320.8 mi / 516 km
   • Annual ridership: 1,383.6 million
   • Lines: 12
10. Wuhan 🇨🇳
    • Stations: 265
    • Length: 311.0 mi 501 km
    • Annual ridership: 1,342.9 million
    • Lines: 12
11. London 🇬🇧
    • Stations: 272
    • Length: 250.0 mi / 402 km
    • Annual ridership: 1,181.0 million
    • Lines: 11
12. New York City 🇺🇸
    • Stations: 423
    • Length: 248.0 mi / 399 km
    • Annual ridership: 2,027.3 million
    • Lines: 28
13. Xi'an 🇨🇳
    • Stations: 211
    • Length: 235.6 mi / 379 km
    • Annual ridership: 1,294.3 million
    • Lines: 12
14. Seoul 🇰🇷
    • Stations: 337
    • Length: 222.7 mi / 358 km
    • Annual ridership: 2,403.0 million
    • Lines: 11
15. Delhi 🇮🇳
    • Stations: 231
    • Length: 217.7 mi / 350 km
    • Annual ridership: 2,032.0 million
    • Lines: 10
16. Qingdao 🇨🇳
    • Stations: 169
    • Length: 216.8 mi / 349 km
    • Annual ridership: 470.0 million
    • Lines: 8
17. Zhengzhou 🇨🇳
    • Stations: 187
    • Length: 213.9 mi / 344 km
    • Annual ridership: 583.2 million
    • Lines: 11
18. Suzhou 🇨🇳
    • Stations: 204
    • Length: 200.3 mi / 322 km
    • Annual ridership: 523.8 million
    • Lines: 7
19. Tianjin 🇨🇳
    • Stations: 193
    • Length: 195.5 mi / 315 km
    • Annual ridership: 571.3 million
    • Lines: 10
20. Madrid 🇪🇸
    • Stations: 242
    • Length: 182.6 mi / 294 km
    • Annual ridership: 662.3 million
    • Lines: 13
21. Paris 🇫🇷
    • Stations: 320
    • Length: 152.6 mi / 246 km
    • Annual ridership: 1,411.5 million
    • Lines: 16
22. Istanbul 🇹🇷
    • Stations: 147
    • Length: 151.2 mi / 243 km
    • Annual ridership: 831.4 million
    • Lines: 11
23. Singapore 🇸🇬
    • Stations: 141
    • Length: 150.0 mi / 241 km
    • Annual ridership: 1,183.7 million
    • Lines: 6
24. Dalian 🇨🇳
    • Stations: 100
    • Length: 147.7 mi / 238 km
    • Annual ridership: 252.0 million
    • Lines: 6
25. Tehran 🇮🇷
    • Stations: 131
    • Length: 139.6 mi / 225 km
    • Annual ridership: 820.0 million
    • Lines: 6
26. Changsha 🇨🇳
    • Stations: 140
    • Length: 135.3 mi / 218 km
    • Annual ridership: 943.9 million
    • Lines: 6
27. Hefei 🇨🇳
    • Stations: 161
    • Length: 134.0 mi / 216 km
    • Annual ridership: 411.0 million
    • Lines: 5
28. Washington, D.C. 🇺🇸
    • Stations: 98
    • Length: 129.0 mi / 208 km
    • Annual ridership: 136.3 million
    • Lines: 6
29. Kuala Lumpur 🇲🇾
    • Stations: 138
    • Length: 127.3 mi / 205 km
    • Annual ridership: 238.5 million
    • Lines: 6
30. Mexico City 🇲🇽
    • Stations: 163
    • Length: 124.8 mi / 201 km
    • Annual ridership: 1,115.2 million
    • Lines: 12