Acceleration coefficients according to EN 12195-1:2020 play a crucial role in the safe stowage of loads in transport vehicles, such as trucks, trailers and vans. These coefficients capture the acceleration forces that can affect the load during transport and are essential to prevent dangerous shifting.
The acceleration coefficients defined by the standard are three:
This coefficient reflects the acceleration forces in the direction of vehicle motion, either during acceleration or deceleration. When the vehicle accelerates, these forces act in the opposite direction to its forward motion, while during braking, they are aligned with its direction. The Longitudinal Acceleration Coefficient is used to calculate the restraint forces required to prevent the load from shifting forward or backward in these scenarios.
Acceleration forces in lateral direction, i.e. sideways to the sides of the vehicle, are considered here. These forces can arise during maneuvers, turns or lane changes, exerting pressure on the load. The Lateral Acceleration Coefficient is used to calculate the restraint forces required to prevent lateral displacement of the load and its possible fall during these maneuvers.
This coefficient focuses on acceleration forces in the vertical direction, i.e. upward or downward. These forces can originate from irregularities in the road, such as potholes or dips, which could cause the load to rise or fall. The Vertical Acceleration Coefficient is used to calculate the restraint forces required to prevent vertical movement of the load and maintain its stability during transport.
These coefficients are critical in determining the proper amount of restraint force required to keep the load securely on the vehicle for the entire journey. The calculations are based on the mass of the load and the acceleration coefficients associated with the different types of movements it will experience during transport.
The correct application of these coefficients and the choice of appropriate securing systems are vital to prevent accidents on the road and ensure safe transport of goods. EN 12195-1:2020 provides precise guidelines for carrying out these calculations and ensuring efficient and safe stowage.
