With regard to the volume of traffic, the economic significance and connecting role of rail transport in a region, railway tracks are divided into main and local tracks. They are also divided by the number of tracks:
| Type of line | Single-track | Double-track |
|---|---|---|
| Source: Statistical data SŽ | ||
| Kilometres | 897,7 | 330,9 |
| In percent | 73,1 | 26,9 |