SPMTs are specialized vehicles designed to transport heavy and oversized loads, such as large industrial components, wind turbines, and offshore platforms. They consist of multiple modular units that can be connected and configured to accommodate different load sizes and weights. The key feature of SPMTs is their ability to self-propel, making them highly versatile and maneuverable. This self-propulsion capability eliminates the need for heavy-duty cranes and reduces the reliance on external towing vehicles, significantly improving efficiency and reducing transportation costs.