Eric Jaffe

Reuters

A Problematic Map of Stop-and-Frisk

Its flaws cloud rather than clarify the recent debate over NYPD tactics.

EPA

A Brief History of Air-Conditioning on the New York Subway

The city has tried to provide a cool summer ride since 1905, with varying degrees of success.

Reuters

What Makes Some Train Station Waits Better Than Others?

"Queueing theory" says we hate the injustice of waiting on chaotic lines.

Shutterstock

Micro-Subletting Is Thriving in New York — But Is It Legal?

Users of sites like Airbnb are snubbing a recent law that forbids short-term apartment rentals.

Reuters

How Not to Make Friends on the Greyhound Bus

A Yale researcher spends two years riding around, documenting the rules of "social disengagement."

Shutterstock

Why Cyclists Run Red Lights

Mostly to turn or because the signal doesn't recognize them, according to the latest research.

Shutterstock

How Urban Parks Enhance Your Brain, Part 2

The less city you can see through the trees, the better for your brain, new research suggests.

Flickr/TriMet

Can Light Rail Carry a City's Transit System?

It can if it's built right, as in Portland or San Diego, and new research explains why.

Jenni Sparks

The Coolest New Maps of London

From an infographic of Olympic venues to street-by-street damage inflicted by the Blitz.

Shutterstock

An Intriguing But Flawed Attack on Smart Growth

A new study claims to "contradict" the premise that density discourages driving — but does it?

8 Truly Embarrassing City Souvenirs

From a Lady Liberty comb to 'I Heart London' nail clippers.

Shutterstock

Seeing the Train as a 'Mobile Office'

Transport modes should be evaluated on their "productive time," not just travel time.

Shutterstock

The Hidden Factor in Bike Commuting: Showers

People are much more likely to ride to work if they have a place to clean up once they get there.

John-Paul Palescandolo & Eric Kazmirek

New York's Lovely Abandoned Subway Station

Photographs of the phantom City Hall station capture transit charm of yore.

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How Urban Parks Enhance Your Brain

A break from the bustle of the city can do your mind good, recent research shows.

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Why You Should Be Skeptical of Statistics on City vs. Suburban Population Growth

Columbia University planning professor David King on why calling the contest is beside the point.

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The 10 Best Songs About the Subway

Inspired by a new contest to write a song inspired by the G train.

California High-Speed Rail Authority

Of Course People Will Ride California HSR

What they may stop riding are commercial airlines, research suggests.

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Why Americans and Europeans Give Directions Differently

A new study finds big cross-cultural differences in spatial descriptions.