Roads

With electric vehicles becoming more common, some states, like Texas, are levying flat fees to make up the shortfall.

The modern roundabout was created in 1960s Britain. But since the '90s, the small Indianapolis suburb of Carmel, Indiana has slowly become the roundabout capital of the United States.

Green energy, internet connectivity and new school buildings are likely to be on the agenda for the White House and Democrats.

From vigilantism to crude graffiti, how civilians are fixing their streets.

The promise of investment in "cutting-edge" technology came out of this year's State of the Union.

You've always wondered: Can we use them to pay for better roads?

The grade: D+. But there were a few categories improved upon.

Despite closed bridges and major bottlenecks, the state still faces an uphill fight for its first gas tax increase in 28 years.

Cars are getting more sophisticated, and 'dumb' highways are slowly evolving to catch up to them.

A run-down on why America has a big infrastructure problem.