Which component is necessary for a securement system to effectively hold cargo?

A reliable support structure is crucial for a securement system because it provides the necessary foundation to ensure that the cargo remains stable and secure during transport. A strong support structure helps to distribute the weight of the cargo evenly and prevents any shifting or movement that could occur due to changes in speed, acceleration, or braking. This is particularly important in preventing accidents or damage to both the cargo and the transport vehicle.

While wheels on the transport vehicle, the weight of the cargo, and weather conditions can impact transportation safety and efficiency, they do not directly contribute to the effectiveness of a securement system. Wheels enable movement, cargo weight affects how much securement is needed, and weather can influence driving conditions, but without a dependable support structure, even the best securement methods could fail.