Eric Jaffe

Surveillance Cameras Could Make Us Better People

New research finds the "bystander effect" can be offset by the presence of public self-awareness.

Confessions of a Straphanger

Travel writer Taras Grescoe on the joys of public transportation.

A Peep at 10 of the World's Most Popular Red Light Districts

Where urban morals, margins, and mainstream converge — under cover of a neon glow.

Meet 'Strappy,' the Almost-There Future of Urban Transport Technology

Near-field communication — which turns your phone into your fares, ads, and more — has shown both promise and problems.

What's Your 'Mobility Biography'?

Major turning points in life are linked with shifts in car ownership and transit use, a new paper argues.

Can Bloomberg's $9 Million Mayors Challenge Really Make a Difference?

At least one massively successful city innovation, 311, suggests it can.

Bloomberg Offers $5 Million Prize for City Innovation

The "Mayors Challenge" will award "breakthrough solutions" to urban problems.

Potholes Are Big Politics in San Diego

Amid a contested mayoral race, deferred road maintenance costs end up front and center.

What Really Matters for Increasing Transit Ridership: Rail Edition

New research says auto regulations or system expansion — but not fare subsidies — increase transit use.

Which City Might Try to Ban Huge Sodas Next?

Deductive reasoning says Seattleites should drink 'em while they got 'em.

Young Americans Aren't the Only Ones Driving Much Less Than Their Parents

A new study shows 18- to 29-year old Germans are also leaving the road.

The Future of Car Commuting

Road trains — semi-autonomous highway platoons — recently completed a promising trial, but questions remain.

Are Cities Losing Power to States?

According to a new survey of public officials, city governments face new restrictions from states.

Mapping 'Urbicide' in World War II

Wartime cartography shows how U.S. bombing of Japan shifted from military targets to cities in general.

Can Trees Actually Deter Crime?

Believe it or not, a new study of canopy coverage in Baltimore suggests maybe they can.

What Will New York City's Bike Share Program Mean for Rider Safety?

Bike lanes could keep accident rates low, even without helmets.

What Really Matters for Increasing Transit Ridership

Broward County, Florida, has one of the top transit systems for a metro of its size thanks to a multi-destination approach.

The Secret to Tokyo's Rail Success

Fares are nice, but real estate and retail holdings are the main reasons why its private rail companies profit.

A New Yorker's (Sadly Lopsided) Scorecard of Tokyo Transportation

Some notes on six weeks of travel in and around Japan's great city.