Diana is a writer and urbanist passionate about public space, historical memory, and transportation equity. Prior to joining Planetizen, she started and managed a farmers' market and worked as a transportation planner in the bike share industry. She is Planetizen's editor as of January 2022.

High Hopes for the Future of Biking in Houston
Despite Houston's reputation for sprawl, the city has made impressive efforts to build out its bike infrastructure.

For the Birds: Why Designing for Birds is Good for Everyone
A new book spotlights how bird-friendly design makes for healthier and more pleasant cities for all species.

Opinion: To Reduce Emissions, Listen to Those Who Don't Drive
An initiative to promote pedestrian-oriented infrastructure investments in Washington state highlights the lessons that policymakers can learn from people who rely on walking and public transit.

Cities' Self-Reported Emissions Numbers are Way Off, Study Finds
New research shows that the voluntary emissions measurements conducted by many cities vastly undercount their greenhouse gas production.

Reimagining the Urban Freeway
With the new administration placing racial justice and equity at the forefront of transportation policy, will America finally reckon with the legacy of its freeways?