| 15-3 Length of Transportation Routes | |||
| unit：km | |||
| Item | 2020 | 2021 | 2022 |
Railways |
|||
Extension Length of the Track Lines |
6926 | 7144 | 7142 |
Length of Railways in Operation |
4877 | 4986 | 4986 |
Length of Highways |
107848 | 108691 | 109761 |
Expressway and Class I to IV Highways |
103670 | 104783 | 106181 |
Express way |
4306 | 4315 | 4395 |
First Class |
2222 | 2233 | 2204 |
Second Class |
9770 | 9767 | 9942 |
Third Class |
9359 | 9725 | 9758 |
Fourth Class |
78013 | 78742 | 79882 |
Highways Below Class IV |
4178 | 3909 | 3580 |
Length of Navigable Inland Waterways |
1621 | 1621 | 1621 |