User: How did the development of railroads shape the growth of cities in the United States?
ChatGPT: The development of railroads in the 19th century had a significant impact on the growth of cities in the United States. Railroads allowed for the transportation of goods and people over long distances, which facilitated the development of new industries and markets. They also allowed for the expansion of urban areas beyond the limits of traditional walking distance from the city center, leading to the development of suburbs and exurbs.
