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| 16-16 Basic
Statistics on National Railways in Operation |
| Item | 1985 | 1990 | 1995 | 2000 | 2004 | 2005 | | | | | | | |
| Length of Railways in Operation (km) | 52119 | 53378 | 54616 | 58656 | 61015 | 62200 | | In Formal
Operation | 49433 | 50310 | 50866 | 51262 | 56822 | 57589 | | In Temporary
Operation | 2686 | 3068 | 3750 | 7394 | 4193 | 4611 | | Proportion of the Length in Formal | 94.8 | 94.3 | 93.1 | 87.4 | 93.1 | 92.6 | | Operation | | | | | | |
| Double-Tracking Length (km) | 9989 | 13024 | 16909 | 21408 | 23841 | 24497 | | As Percentage of the Length of
Railways | 19.2 | 24.4 | 31.0 | 36.5 | 39.1 | 39.4 | | in Operation | | | | | | |
| Length of Electrified Railways (km) | 4151 | 6941 | 9703 | 14864 | 18562 | 19408 | | As Percentage of Railways in Operation | 8.0 | 13.0 | 17.8 | 25.3 | 30.4 | 31.2 |
| Length of Diesel Engine Routes (km) | 10822 | 16097 | 24749 | 39497 | 42453 | 42792 | | As Percentage of Railways in Operation | 20.8 | 30.2 | 45.3 | 67.3 | 69.6 | 68.8 |
| Length under Centralized Traffic
Control (km) | 1307 | 1169 | 1226 | 1200 | 1842 | 1828 | | As Percentage of Railways in Operation | 2.5 | 2.2 | 2.2 | 2.0 | 3.0 | 2.9 |
| Automatic Blocking Length (km) | 6921 | 10370 | 12910 | 18318 | 22724 | 24149 | | As Percentage of Railways in Operation | 13.3 | 19.4 | 23.6 | 31.2 | 37.2 | 38.8 |
| Semi-automatic Blocking Length (km) | 42625 | 38832 | 40859 | 41695 | 39335 | 39390 | | As Percentage of Railways in Operation | 81.8 | 72.7 | 74.8 | 71.1 | 64.5 | 63.3 |
| Length of Continuous Welded Rail (km) | 10439 | 14644 | 21854 | 29975 | 43198 | 47965 | | As Percentage of the Trunk Lines | 16.7 | 21.7 | 40.0 | 51.1 | 70.8 | 54.2 | | Number of Stations with Electric | 2320 | 3535 | 4587 | 5232 | 5340 | 5213 |
| Interlocking (unit) | | | | | | | | As Percentage of Railways Stations | 46.9 | 62.9 | 73.9 | 90.4 | 95.1 | 93.7 | | in Operation | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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