What type of shipping is characterized by transporting unpackaged items in large quantities?

Bulk shipping is characterized by transporting unpackaged items in large quantities. This method is commonly used for commodities such as liquids, grains, and other materials that can be efficiently loaded and unloaded without the need for individual packaging. Bulk shipping is designed to maximize space and minimize costs, as it allows for the transport of large volumes of goods at one time, which is more efficient than shipping smaller, packaged items.

In contrast, break-bulk shipping involves transporting packaged items, and each package is a distinct unit, which requires more handling and can be less efficient in terms of space utilization. Containerized shipping focuses on transporting goods within containers that can be easily moved between different modes of transportation without needing to unpack the contents. Hazardous shipping is specifically tailored for transporting dangerous materials and includes specific regulations for safety and handling, which is fundamentally different from the concept of bulk shipping.