15. Entering the Era of Global Exports
The expansion of railroads in the 19th century significantly enhanced America’s ability to transport goods efficiently to seaports, facilitating exports and bolstering the nation’s presence in global markets. Major ports like New York and San Francisco, connected by extensive rail networks, became pivotal hubs for international trade. In 2023, approximately 38% of all U.S. rail carloads and intermodal units—11.3 million shipments—were directly tied to international trade, underscoring the critical role of railroads in connecting American producers to global markets. (aar.org) Railroads transported a diverse array of commodities, including agricultural products, automobiles, and industrial goods, to ports for export. This efficient movement of goods not only supported domestic industries but also positioned the United States as a competitive player in the global economy. The seamless integration of rail and maritime transport systems enabled American businesses to meet international demand effectively, contributing to sustained economic growth and the expansion of global trade networks.



