Final answer:
Some Americans might have opposed transportation developments due to concerns about culture, economy, and the environment.
Step-by-step explanation:
Some Americans might have opposed the developments in transportation for several reasons. One reason could be concerns about the impact of transportation on traditional ways of life and culture. As more people moved to cities and suburbs due to improved transportation, rural Americans may have felt that their way of life was being threatened and viewed urbanites as sinful and profligate. Another reason could be economic concerns, such as the effects of transportation on wages, income levels, and government taxes and spending. Lastly, there could have been concerns about the environmental impact of transportation, such as pollution from automobiles and the effects of building roads, canals, and railroads on the natural landscape.