How we roll

There's safety in numbers for cyclists

You might reasonably think that the number of bicycle crashes would skyrocket as more people take to the streets on two wheels. It's a fine, common-sense assumption -- that happens to be wrong.

Another tunnel to nowhere

The Cincinnati subway that never was [VIDEO]

Today, some people look at the decision to halt the Cincinnati subway in 1925 as fatally short-sighted. "If they had finished this system, we may have actually held on to some of our businesses that have left. Cincinnati downtown may have been a viable institution."

building better blocks

LEGO lets you play with improving mass transit

Will having kids play with LEGO buses and trams (rather than Hot Wheels) foster the next generation of public-transit advocates?

growing lanes

Bike trail being paved with asphalt made from plants instead of oil

Chris Williams of Iowa U. has cooked up a bio-oil from plants that can replace the asphalt glue that holds our pavement together -- Bioasphalt.

Tunneling to nowhere

NJ governor puts a halt to major public transit project [UPDATED]

Gov. Chris Christie's refusal to invest in a piece of major public transit infrastructure is another blow against a modernized transportation system.

quiz time

The world's largest metro transit system is in …

After opening several new lines this year, it's got 282 stations and 420 km (261 mi) of lines, compared to 408 km in London and 368 km in New York.

Royal flush

New York City to curb sewage surges with green infrastructure

Mayor Michael Bloomberg has an ambitious plan to keep raw sewage out of the city's waterways.

Stop this train, they want to get off

Republican guv candidates line up to say no to federal stimulus money for rail

The creation of a modern rail network in the United States is becoming just another political football.

un-mall-ing America

Designer Bruce Mau on the suburbs, the mall, and the automobile [AUDIO]

Jeanne Park of PBS's Need to Know speaks with Mau about his love of the suburbs, cup holders, and the challenge of rebranding climate change.