Figure 4.1b Distance travelled by heavy trucks according to configuration, 2007
| Truck configuration | Vehicle-kilometres |
|---|---|
| Straight truck | 9 602 110 910 B |
| Straight truck and trailer | 1 447 338 584 D |
| Tractor and one trailer | 15 898 853 921 B |
| Tractor and two trailers | 1 939 354 925 C |
| Tractor and three trailers | – F |
| Tractor only | 914 732 895 D |
| Other | 2 036 035 177 C |