Eric Jaffe

Have We Reached Peak Road?

Paved mileage seems to have leveled off between 2008 and 2011.

A D.C. Bus That's 7 Minutes Late Is Still Technically 'On Time'

More proof that 'on-time' performance metrics don't actually tell us very much.

Should Distracted Cycling Be Banned?

As bicycling gains in popularity, more cities will have to confront the question.

We Urgently Need to Fix the Gas Tax

It's not too soon to start discussing how to keep the Highway Trust Fund from bankruptcy.

Atlanta Makes a (Modest) Push for Transit Regionalism

But one website for all riders in the metro area is only a start.

Wi-Fi Doesn't Just Enhance Amtrak — It May Actually Encourage New Riders

But merely providing the service isn't enough. It needs to work well, too.

Definitive Evidence That L.A.'s New Light Rail Line Reduces Driving

A carefully controlled study of the Expo line shows that vehicles miles dropped 40 percent.

Will Cincinnati's Streetcar Go the Way of Its Abandoned Subway?

The city must decide soon whether to keep the project going — or pay back $45 million in federal funding.

An App for Making Friends on the Subway

Playdope connects people whose paths through the city overlap.

A Before-and-After Guide to Safer Streets

Five image pairs — and simple rules — courtesy of New York City.

It's Time for California to Fund High-Speed Rail Itself

A recent court ruling demands a clear plan to pay for the line — likely one that doesn't involve federal money.

How to Design a Happier City

Charles Montgomery's new book finds the intersection of urban policy and well-being.

San Antonio Can't Decide If It's Building Streetcars or Light Rail

The city is locked in a bewildering debate, with transit funding at stake.

How New York's Toll System Got Completely Busted

High tolls can keep a transportation network efficient and equitable. Right now, the city's system accomplishes neither.

Our Memories Are Geo-Tagged

New research shows that the brain's "place cells" fire when we recall an event.

How the Streetcar Shaped Post-Katrina New Orleans

The system attracted commercial developers but may have displaced residential ones.

Why Correcting Misperceptions About Mass Transit May Be More Important Than Improving Service

Attitudes toward public transportation and concerns about safety have a huge influence over whether or not a person rides.

Why U.S. Immigrants Drive Less Than Natives

New insights from focus groups with recent arrivals who settled in New Jersey.

The Secret Art of Street Sweeping

How New York cleans 6,000 miles of roads every day.