How is payload defined in the context of container transport?

In the context of container transport, payload is defined as the total weight of the cargo and removable securement devices. This definition encompasses all items that can be loaded into the container, including the actual goods being transported as well as any temporary equipment used to secure or stabilize the cargo during transit.

Understanding payload is crucial because it directly impacts the weight that a container can safely carry, ultimately influencing the load limits established for transport vehicles. Knowing the total weight allows for proper weight distribution and adherence to transportation regulations, ensuring safety in shipping operations.

The other options fall short as they do not accurately capture the complete essence of what payload represents. For example, one option only considers the weight of the cargo itself and excludes important elements like securement devices, which are necessary for the safe transport of goods. Another option may focus solely on the container's fittings without incorporating the actual cargo weight, leading to a misunderstanding of the term 'payload' in logistics and transport.