| Total stations | NSL: 11 underground, 15 elevated, 1 Ground-level EWL: 7 underground, 28 elevated |
| Route length | 102km |
| Depots | 4 |
| Types | C151, C651, C751B, C151A, C151B, C151C, R151 |
| Total Train* | 198 |
* The numbers shown represent the number of trains needed for each line, based on current operating needs. It does not reflect the fluctuations arising from progressive decommissioning of old trains and commissioning of new ones.
| Total stations | 30 underground |
| Route length | 35km |
| Depots | 1 |
| Types | C830, C830C |
| Total Train* | 64 |
* The numbers shown represent the number of trains needed for each line, based on current operating needs. It does not reflect the fluctuations arising from progressive decommissioning of old trains and commissioning of new ones.
| Total stations | 27 underground |
| Route length | 40km |
| Depots | 1 |
| Types | CT251 |
| Total Train* | 91 |
* The numbers shown represent the number of trains needed for each line, based on current operating needs. It does not reflect the fluctuations arising from progressive decommissioning of old trains and commissioning of new ones.
| Total stations | 13 |
| Route length | 8km |
| Depots | 1 |
| Types | C801, C801A, C801B/NCX-2 |
| Total Train | 30** |
* The numbers shown represent the number of trains needed for each line, based on current operating needs. It does not reflect the fluctuations arising from progressive decommissioning of old trains and commissioning of new ones.
**Due to progressive decommissioning of old trains and commissioning of new trains.
