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Why Are HOT Lanes Struggling to Make Money?

Broadly speaking, the answer comes down to poor planning and a commuter learning curve.

A Helmet That Automatically Steers You to the Nearest Bike-Share Station

New Yorkers can mount this thing on their heads and never worry about finding a Citi Bike dock again.

Want to Keep Kids From Skipping School? These Teens Have Some Ideas

New York’s Youth Justice Board has produced a compelling set of recommendations to reduce truancy rates.

In the Climate Change Economy, It's About Efficiency, Not Just Growth

North American cities are producing substantially less wealth per ton of greenhouse gas emissions than their European counterparts.

The Supermoon, as Seen From Cities Around the World

This was the largest and brightest the moon will look until August 2014.

Worst Postman of the Day: This Russian Package Tosser

Hope you didn't order anything breakable!

Downtown Calgary Is Almost Entirely Under Water

75,000 to 100,000 residents are fleeing the city in an unprecedented evacuation effort.

Remembering America's First Female Architect

Louise Blanchard Bethune designed a number of important buildings around Buffalo.

Beyond Pretty Pictures: An Unusually Ambitious Design Competition for Sandy Recovery

"There is a desperate need for the best science and information about what climate change will mean to families and communities."

Why Cities Should Be Leading the Push for Immigration Reform

New research suggests that immigrants could boost housing values in precisely the shrinking cities that need it.

100 Ideas for Improving the New York City Subway in 100 Days

From simple hand-sanitizer to a suction garbage system and beyond.

Get Ready to Use Your iPad For the Whole Flight (Just Not Your Cell Phone)

Soon, the FAA will let you use your iPad even during takeoffs and landings.

Aerial Views Show Just How Awful the Fire-Smog Over Singapore Has Become

And this could go on for several weeks.

How Your Online Burrito Review Could Help Standardize Municipal Data

Yelp's effort to publish restaurant health safety inspections is just the second time cities have attempted to communicate valuable information in a common language.

The Thames Riverside Is About to Get a Whole Lot Fancier

London's waterfront has never quite managed the elegance of the Seine, but that's about to change, with the help of a little inspiration from New York.

Yes, Paris Is Wealthy, But Some Parts Are Much Wealthier Than Others

A series of maps reveals the subtlety of central Parisian economic geography.

Patent of the Day: Google's Street View Walking Stick

For hiking trails and other locations beyond the reach of cars.

Incredible Flood Damage Across Northern India

At least 120 are dead in one of the worst monsoon seasons on record.

A New Ad Campaign Asks Parisians to Be Nice to Tourists

And illuminates some national stereotypes in the process.