What is dunnage used for in cargo transport?

Dunnage is used in cargo transport primarily to separate cargo from itself and its restraints. This is crucial for several reasons. First, it helps to prevent damage to both the cargo and the restraints during transport. By providing a buffer, dunnage minimizes the risk of direct contact that can lead to scratches, dents, or other types of damage to the goods being transported.

Additionally, proper use of dunnage can help in stabilizing the load, preventing shifting during transit, which could otherwise lead to accidents or further damage to the cargo. Separating cargo also allows for better air circulation, which is important for certain goods that may be sensitive to temperature or humidity.

The other choices do not accurately describe the primary function of dunnage. While securing the load to the vehicle and considerations regarding weight and axle loading are important aspects of cargo transport, they serve different purposes than that of dunnage.