Which of the following diagrams shows the best way of loading the semi-trailer?

Explanation: • A: No, greater stability is always achieved if the weight is carried as low as possible.
• C: No, this pattern would place all the weight over the drive axle of the tractor unit increasing the likelihood of an axle overweight. It also places no weight over the semi-trailer axled thereby reducing any braking effect on those three axles.
• D: No, this pattern does not put any weight over the drive axles over the tractor unit and could lead to vehicle instability.
• B: Yes, this follows the principle of placing most weight as low as possible to achieve greatest stability.

Category: CPC Case Studies: Vehicle Loading Unloading and Security