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.

This Washington City Quietly Eliminated Single-Family Zoning
Walla Walla's 2018 zoning reforms included adaptive reuse, reduced parking requirements, and more relaxed rules for accessory dwelling units.

How Extreme Heat Threatens the Electrical Grid
Higher demand for electricity and lower capacity for production due to more intense heat waves are straining the power grid and causing concern for future energy production.

San Diego Bike Advocates Demand Safer Infrastructure
After 12 people were killed this year biking on San Diego County roads, local advocates are calling for more protected bike lanes and safer bike facilities.

El Paso Streetcar Returns With Free Fares
The historic streetcars will connect uptown and downtown amenities in a 4.8-mile loop.

Study: More SUVs Lead to More Pedestrian Deaths
Larger vehicles are proving deadlier for pedestrians–and are more popular than ever.