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.
Opinion: Los Angeles Transportation Plan Will Increase Driving
L.A. Metro’s plan to add hundreds of miles of new traffic lanes is projected to increase carbon emissions by 10 million metric tons.
How Extreme Weather Threatens Transit Systems
As weather events become more intense and unpredictable, transit agencies must take steps to protect their aging infrastructure from flooding, storms, and extreme heat.
Federal Rule Would Require Regional Emissions Reduction Targets
A rule shelved during the Trump administration would require states and metropolitan areas to set targets for reducing tailpipe emissions, but advocates say it doesn’t go far enough to mandate results.
Houston Bike Advocates Propose Two Bridges Across White Oak Bayou
An as-yet-unfunded proposal to build two new bridges would create essential connections and help riders avoid a mile-plus detour.
Philadelphia Deems Speed Camera Project a Success
City officials say an automated traffic enforcement pilot program has reduced speeding and crashes along the corridor where cameras were installed.