The interstate highway system transformed the U.S. economy and American life in the 20th century. High-speed rail can have a ...

Thirty years after Ohio first rejected the idea of building Interstate 73 through central Ohio, the specter of economic development is again fueling study and debate about new highway construction.

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 ...

Following World War II, population patterns in the United States shifted in two primary ways: a move away from older cities in the Midwest and toward newer urban centers in the South; and a mass ...

Interstate 90 was Erie County's first superhighway. Originally conceived as a northwestern extension of the Pennsylvania Turnpike, the "Erie County Thruway" project was turned over to the state ...

In 1956, the U.S. Congress introduced the Federal Aid Highway Act, the largest public works project in American history to that point. It called for the construction of 41,000 miles of the Interstate ...

For decades, the United States has built and expanded a 220,000-mile network of state and interstate highways, easing cross-country travel while dividing cities and boosting suburban sprawl. But as ...

When the national interstate system began in the 1950s, no one considered the need for the far north-central states. As the upper Midwest has grown, there seems to be a missing interstate, namely, an ...