Gasoline Lead

The Chemistry of Safer, Denser Cities

While the middle class sought the refuge in the suburbs in the 1960s and 1970s, it turns out that the crime they were fleeing had nothing to do with density, race, or even blight. Mother Jones magazine suggest that it was all because of lead.

April 13, 2013 - Josh Stephens

Traffic Jam 1970s

An Astounding Explanation for Why Big Cities Are More Dangerous Than Small Ones

For decades, researchers have hunted for an explanation for why big cities have been more prone to violent crime than small ones. A new hypothesis may offer a surprising answer, and prove that big cities aren't inherently much more dangerous.

January 11, 2013 - Mother Jones

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.