What's the shortest route, if you're visiting each city exactly once and then returning to the point of origin?
Our new series about the people and ideas reshaping urban life all over the world, from the ground up.
The makers of this gyrating Do Not Cross signal say it reduces jaywalking by 81 percent.
The people and ideas reshaping urban life
But there are doubts about whether it will inspire other U.S. cities to follow suit.
Make your commute a "curated art experience" through augmented reality.
A new report highlights how civic smartphone technology could be a huge help to recently arrived immigrants.
BART cars are about to get their first real overhaul since the system launched in 1972.
Scientists are cooking up asphalt, concrete, and metals that heal themselves. That means smarter and stronger infrastructure—and just a dash of magic.
Cities considering a move to LED street lamps can see them in action at the Danish Outdoor Lighting Lab.
California businesses will now face penalties if they try to fine customers for negative comments.
How the worst apple took over the United States, and continues to spread
Another feather in New York’s cap: It's home to the nascent high-tech real estate industry.
The humble traffic signal is gaining some new responsibilities.
This field of ancient stones may be more complex than initially believed.
We're 20 years away from catastrophe, says PricewaterhouseCoopers.
About 70 percent of America's elementary schools still rely on slow internet connections. But in rural areas, the challenges—and costs—make getting broadband particularly complicated.
Wednesdays are for anxiety. Suicidal thoughts peak on Sundays. Can a new trove of data help us find better ways to well-being?
Several new efforts to clean up London's long-polluted waterway appear to be working. One day soon, you might even be able to take a slime-free swim.