What does intermodalism refer to?

Intermodalism refers specifically to the practice of using multiple modes of transportation to move goods from the point of origin to the final destination. This method leverages the strengths of different transport systems—such as rail, truck, ship, and air—allowing for greater efficiency, flexibility, and cost-effectiveness in freight logistics. By combining these various modes, businesses can optimize their supply chains, reduce transit times, and lower shipping costs.

The first choice, which focuses on using only one mode of transport, does not encapsulate the essence of intermodalism, as it contradicts the very principle of combining different methods. Arranging international travel routes might involve planning how people travel globally, but it doesn't directly relate to the transportation of freight via multiple modes. Lastly, while standardizing shipping container sizes might facilitate intermodal transportation by ensuring compatibility among different modes, it is not the definition of intermodalism itself. Therefore, combining transportation modes for freight is the most accurate depiction of intermodalism.