How did the addition of many more roads and highways affect the U.S.?

The expansion of roads and highways in the U.S. significantly transformed transportation, facilitating faster movement of goods and people across the country. It spurred economic growth by enabling suburban expansion and enhancing access to markets, jobs, and services. However, it also contributed to urban sprawl, increased reliance on automobiles, and environmental challenges such as air pollution and habitat destruction. Overall, while highways improved connectivity and economic opportunities, they also brought complex social and environmental consequences.