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.

Supreme Court Could Curb EPA’s Water Quality Regulation Powers
A suit brought by the city of San Francisco argues that the agency’s language around water treatment and discharge is too vague and imposes retroactive penalties.

Massachusetts TOD Law Yielding Results
While some cities are fighting the state’s push to increase density near transit, others are already breaking ground on multifamily projects that will bring hundreds of new housing units online.

Former DC Army Garage Gets New Life
The fortress-like underground structure posed unique challenges to engineers redeveloping a former U.S. Army complex.

APTA Report Documents Transit Equity Efforts
Transit agencies around the country are boosting their efforts to serve historically marginalized communities and make transit work better for the households that rely on it the most.

New California Law Supports Adaptive Reuse
AB 2243 paves the way for easier conversion of industrially and commercially zones properties for residential development.