Traffic around a major city can really slow down a relaxing vacation, so we're breaking down the five busiest highways in the United States.

The story of America’s interstates is usually told as a straightforward tale of postwar progress, but the real origins are stranger and more contested than the green signs suggest. The Dwight D.

The interstate highway system transformed the U.S. economy and American life in the 20th century. High-speed rail can have a similar effect in the 21st century, reindustrializing and reconnecting ...

A consensus study mandated by US Congress to advice on the public policies and investments needed to restore and upgrade the Interstate Highway System to its role as a premier system that meets the ...