Transport is one of the invisible mechanisms that keeps modern life functioning. Every morning, millions of people travel to work, students make their way to schools and universities, raw materials move toward factories, finished products leave warehouses, and parcels travel across cities and continents toward their final recipients. None of this happens by accident. Behind every journey is a transportation system designed around distance, cost, speed, capacity, infrastructure, and purpose. Some journeys take place on highways. Others cross oceans, traverse rail networks, fly through international airspace, or follow inland waterways. Increasingly, transportation networks combine several modes to create a single journey. Understanding the principal methods of transportation is therefore useful…