Sommer Mathis

Walk Score Offers Apartment Searches Based on Commuting Time

Data from 209 transit agencies combines with Craigslist rental listings

The Future of GPS Data in Smarter Planning

Researchers in Beijing are working with taxi drivers to identify the sources, not just the locations, of congestion

Sub City: If Only All Commutes Were This Serene

A pair of New York-based filmmakers marvel in, and just above, the underground

Welcome to The Atlantic Cities

What you should—and shouldn't—expect from The Atlantic's newest website

State of Play: Playground Infrastructure in 20 Major U.S. Cities

Which major U.S. cities provide the best, and worst, mix of playgrounds for their youngest residents?

Detroit: City on the Move

A 1965 promotional film for Detroit reminds us how far the city fell behind