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.
Bike Lanes Don't Cause Congestion
Research from Europe shows bike infrastructure doesn't add to urban traffic and can shift mode share from cars to bikes and reduce the need for solo car trips.
Santa Monica Offers Affordable Housing to Residents Displaced by Freeway Construction
A new program seeks to make restitution for the damage inflicted on Black communities by highway construction and urban renewal.
In Praise of Single-Staircase Construction
U.S. building codes mandate two staircases in multi-story buildings, but some argue this requirement reduces affordability and encourages wasteful, uninspired design.
Coalition Calls for Updated Federal Crash Test Standards
Revising federal crash test standards and updating test dummies to mimic a wider variety of bodies could save thousands of lives each year.
Ten Urban Success Stories From 2021
Still battling a global pandemic and its widespread economic and social effects, cities nevertheless made progress in some unexpected ways.