Highways are not great for the planet. Their smooth, wide, inviting lanes have helped make transportation the largest source of greenhouse gas emissions in the US, responsible for 29 percent of the ...

Arguing in favor of his tariffs, President Donald Trump claimed on Twitter Sunday that the US had "no debt" and "a big system of tariffs" when it built "everything from Highways to the Military with ...

A three-mile stretch of Interstate 94 in Michigan will be converted into America’s first smart highway. Axios reports that the Alphabet-backed startup Cavnue has started constructing the smart highway ...

When Interstate 25 was constructed through Denver, highway engineers moved a river. It was the 1950s, and nothing was going to get in the way of building a national highway system. Colorado’s governor ...