The Interstate Highway System is a network of highways in the United States designed for fast and efficient travel. Established in 1956, it connects major cities and regions, making it easier for people and goods to move across the country. The system includes over 47,000 miles of roads, allowing for safer and quicker transportation compared to older roads. This network was created to improve national defense and boost the economy. It also plays a crucial role in everyday life, as many Americans rely on these highways for commuting, road trips, and transporting products. The Federal Highway Administration oversees its maintenance and development.