A carefully controlled study of the Expo line shows that vehicles miles dropped 40 percent.
The city must decide soon whether to keep the project going — or pay back $45 million in federal funding.
Playdope connects people whose paths through the city overlap.
Five image pairs — and simple rules — courtesy of New York City.
A recent court ruling demands a clear plan to pay for the line — likely one that doesn't involve federal money.
Charles Montgomery's new book finds the intersection of urban policy and well-being.
The city is locked in a bewildering debate, with transit funding at stake.
High tolls can keep a transportation network efficient and equitable. Right now, the city's system accomplishes neither.
New research shows that the brain's "place cells" fire when we recall an event.
The system attracted commercial developers but may have displaced residential ones.
Attitudes toward public transportation and concerns about safety have a huge influence over whether or not a person rides.
New insights from focus groups with recent arrivals who settled in New Jersey.
How New York cleans 6,000 miles of roads every day.
Active travelers like walkers have a more complete sense of space than passive ones.
The passenger rail provider has lost $609 million on snacks and beverage service since 2006.
Without a cash infusion, it'll be broke by 2015. What's Chief Steve Spade to do?
Seventeen alternatives, ranked.
Building adaptable structures will save time, money, and material waste.
Trains may finally be able to compete with cars.