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.

Urbanist TikTok Takes Aim at the Suburbs
Planners are using the popular video platform to explain how car dependence and single-family zoning deepen suburban isolation and affect affordability and sustainability.

The Local Causes of Inflation
Although it is widely seen as a national issue, decisions made at the local level often have a stronger impact on inflation than federal policies.

This Street Treatment Fights Extreme Heat
Applied to streets, parking lots, and other asphalt surfaces, a reflective epoxy coating can lower temperatures by as much as 10 degrees and cool neighborhoods vulnerable to extreme heat.

Philadelphia Wants To Address Racial Bias in Home Appraisals
The city convened a task force to assess the state of appraisal bias and recommend ways to improve equity in real estate appraisal.

How Sharrows Became Cycling’s Most Hated Symbol
Originally designed as a low-cost way to encourage safer road sharing between bikes and cars, the sharrow has become a symbol of the lack of commitment to protected bike infrastructure in many cities.