Containerized loads:

Containerized loads are indeed generally used when freight is carried part way by rail or ship. This method of shipping facilitates the movement of goods over different transportation modalities without needing to unpack and repack the freight. The container acts as a standardized unit that can easily be transferred between trucks, trains, and ships, making the logistics of shipping more efficient.

These containers often allow for a variety of goods to be transported together and provide protection from the elements and theft during transit. Because they are designed for intermodal transport, they are an integral part of global trade and shipping practices.

The other options present aspects that are not accurate regarding containerized loads, such as the misconception that they do not require inspection or securing. In fact, ensuring that the load is properly secured and inspected is a critical part of transporting any freight, including containerized loads. Additionally, while containers may include their own securing devices, the responsibility of ensuring the load remains safe during transit ultimately lies with the driver. Furthermore, containerized loads are not restricted to lightweight items; they can carry a variety of goods regardless of their weight, provided they are within the load capacity of the container and the transport vehicle.