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.

Republican States Challenge Highway Emissions Plan
A federal proposal that would require states to monitor and set targets to cut greenhouse gas emissions, praised by Democrats, is being called “unworkable” by many Republican states.

Who Should Manage New York’s Outdoor Dining Program?
A proposal to shift responsibility away from the Department of Transportation has met staunch resistance from industry groups and advocates of the program.

Why the City Can’t 'Just Put a Trader Joe’s There'
The flawed logic behind an all-too-common planning misconception.

Tampa Streetcar: From Tourist Trap to Transit Lifeline
Despite the line’s reliability and success, funding for its future expansion and operations remains undetermined.

How Office Conversions Could Benefit San Francisco
The city could emulate Calgary, New York, and other cities in supporting office conversions as a way to boost floundering downtown economies and provide much-needed additional housing.