A start-up called Urban Engines believes data analysis and commuter lotteries can help cities reduce congestion.
They reveal art underneath.
High tolls can keep a transportation network efficient and equitable. Right now, the city's system accomplishes neither.
Watch the commuting patterns of New York, San Francisco and Los Angeles.
Sleep away, straphangers.
Oyster-card data reveals both stark patterns in commuting behavior and land use.
Photo journalist Rebecca Davis captures riders in a voyeuristic style reminiscent of Walker Evans.