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.
New Map Deepens Understanding of Cross-Border Aquifers
A new analysis of U.S. and Mexico groundwater supplies reveals 72 aquifers shared between the two countries.
Proposed San Diego Code Update Seeks to Increase Density Near Transit
A set of proposed updates to the city’s development code would expand TOD zones and encourage more backyard dwellings.
How Zoning Changes Could Boost Housing Supply in Seattle
The Puget Sound region could benefit from zoning tweaks that would encourage more transit-oriented development and ‘gentle’ density increases, new research finds.
The Power of Urban Waterfronts
Humans' love of water makes waterways a particularly attractive urban amenity. Why did so many American cities let theirs languish?
Chattanooga Expands ‘Smart Intersection’ Network
The city is building on a smaller test project that uses sensors to gather data about traffic movement to help transportation planners make more informed traffic management decisions.