Tech

Its Streetcar Stalled, Kansas City Mulls the Best Way Forward

Many cities face a similar challenge finding the money to expand a starter line.

This Horrible Speaker Plays Nothing Except U2

It's like the new iTunes, yet somehow worse.

You Can Help Identify Chicago's Wild Animals

Name that critter—from the comfort of your couch.

Photos

This Scottish Island Is Nearly Free of Fossil Fuels

Eigg's main grid is powered mostly by wind, water, and sun.

CityFixer

A Danish City Is Using GPS to Track (and Help) the Homeless

An opt-in program in Odense aims to use the data to bring services to the homeless where they already congregate.

Personal Rapid Transit Is Probably Never Going to Happen

But the podcar concept will live on in the form of compact driverless vehicles.

Finally, a Way to Strap an iPad Directly to Your Face

The AirVR brings virtual reality closer than ever.

Trolling People Who Want to Be on 'Humans Of New York'

Actor Tyler Fischer walks around the city claiming to be the man behind the insanely popular blog HONY.

Maps

An App That Solves the Famed 'Traveling Salesman Problem'

What's the shortest route, if you're visiting each city exactly once and then returning to the point of origin?

Introducing 'City Makers: Global Stories'

Our new series about the people and ideas reshaping urban life all over the world, from the ground up.

Videos

How About a Crosswalk Light that Dances?

The makers of this gyrating Do Not Cross signal say it reduces jaywalking by 81 percent.

Honolulu Is Building America's First Fully Driverless Transit System

But there are doubts about whether it will inspire other U.S. cities to follow suit.

This App Transforms Subway Ads Into Fine Art

Make your commute a "curated art experience" through augmented reality.

CityFixer

Attention Cities Looking to Engage Immigrants: Don't Dismiss the Smartphone

A new report highlights how civic smartphone technology could be a huge help to recently arrived immigrants.

How San Francisco Is Designing Its Metro Train of the Future

BART cars are about to get their first real overhaul since the system launched in 1972.

The New Alchemy: How Self-Healing Materials Could Change the World

Scientists are cooking up asphalt, concrete, and metals that heal themselves. That means smarter and stronger infrastructure—and just a dash of magic.

An Urban Lab Helps Cities Switching to LED to See the Light

Cities considering a move to LED street lamps can see them in action at the Danish Outdoor Lighting Lab.

You Now Have a Legal Right to Write Bad Yelp Reviews in California

California businesses will now face penalties if they try to fine customers for negative comments.