Lateral Stability of Long Combination Vehicles

The Resolution 68/98 authorized the circulation of Long Combination Vehicles. Representative of freight vehicles evolution, these combinations should be observed taking into account their handling performance. Due to the quantity of articulations, they are subject to specific phenomena which affect their handling. The most relevant being “Rearward Amplification.” This concerns the increase in lateral deplacement of the last unit when compared with the first. The tractor-unit is subject to greater lateral acceleration, and has the potential to rollover. A study in rear amplification is essential for the evolution of freight vehicles, roads, road signals and in the training of drivers.