Guerrilla Urbanism

Liz Patek/Right of Way

A DIY Approach to Slowing a City's Cars

Inside one New York group's campaign to lower speed limits from 30 to a much safer 20.

Shutterstock

Are Guerrilla Bike Lanes a Good Idea?

One of New York City's busiest streets doesn't have a full bike lane. The other night, some cycling advocates took matters into their own hands.

Flickr/The Shopping Sherpa

The Tricky Politics of Vacant Lots

A Philadelphia local transformed a lot into a park on his own dime. But the city says the conversion was illegal, and is threatening to sue.