Appendix: Types of heavy motor vehicles
Rigid truck
![rigid-truck.gif Rigid trucks.](https://oag.parliament.nz/2005/trucks/gfx/rigid-truck.gif/@@images/143bee89-3d35-4c2c-9c74-85856b522b93.gif)
Rigid trucks account for about 58% of the total distance travelled by all heavy vehicles. These vehicles have always had a speed limit of 90km/h.
Truck-trailer
![truck-trailer.gif Truck-trailers.](https://oag.parliament.nz/2005/trucks/gfx/truck-trailer.gif/@@images/76cbe548-828b-499d-bf02-1e1bb90a3474.gif)
Truck-trailers account for about 21% of the total distance travelled by all heavy vehicles. Before May 2004, these vehicles had a speed limit of 80km/h. It is now 90km/h.
B-train
![b-train.gif B-trains.](https://oag.parliament.nz/2005/trucks/gfx/b-train.gif/@@images/61c14d27-7d04-432c-a365-de0c3d1e1191.gif)
B-trains account for about 4.2% of the total distance travelled by all heavy vehicles. These vehicles have always had a speed limit of 90km/h.
Semi-trailer
![semi-trailer.gif Semi-trailers.](https://oag.parliament.nz/2005/trucks/gfx/semi-trailer.gif/@@images/3c00ab26-b530-45e2-b0f0-65a4d57a4cb3.gif)
Semi-trailers account for about 15% of the total distance travelled by all heavy vehicles. These vehicles have always had a speed limit of 90km/h.
A-train
![a-train.gif A-trains.](https://oag.parliament.nz/2005/trucks/gfx/a-train.gif/@@images/9feced2c-ea6d-4cc2-8b76-8346d7f5699e.gif)
A-trains account for about 1.2% of the total distance travelled by all heavy vehicles. Before May 2004, they had a speed limit of 80km/h. It is now 90km/h.
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