Which of the following commercial vehicles is prohibited from driving faster than 80 k.p.h on an inter-urban road?
- Commercial vehicles with an all up weight of 10,000 kg or less.
- Commercial vehicles with an actual weight that reaches their “all up weight”.
- Correct answer: Commercial vehicles with an all up weight of 12,000 kg or more.
- Buses with an all up weight of 10,000 kg or more.
Why this is the answer
The correct answer in the official bank: Commercial vehicles with an all up weight of 12,000 kg or more.
A commercial vehicle's maximum speed depends on the all up weight stated in its licence, not on the load it is actually carrying. Commercial vehicles with an all up weight of 12,000 kg or more are limited to 80 k.p.h even on inter-urban roads, because their great mass lengthens braking distance and makes crashes more severe. So fully loading a lighter vehicle is not what triggers this limit.