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: Road Safety Data Should Include Close Calls
Even in the absence of lethal collisions, the experience of repeated near-misses can discourage pedestrians from walking and degrade public perception of road safety.
Vecindades: Mexico City's Answer to 'Missing Middle Housing'
An iconic multifamily housing form repurposes the former homes of Mexico's elite into communal housing for urban workers.
Three Challenges to Building Big Infrastructure in America
How complicated zoning and permitting, slow construction, and a dearth of certain skills in the public sector cause delays and increase the cost of U.S. infrastructure projects.
Blanket Upzoning: A Solution to Housing Pressures?
Mass upzoning could give developers and homeowners the flexibility to build new housing where it's most needed.
What Mistaken Urban Design Assumptions Can Teach Us
When writing city plans, past planners in San Francisco got some things just right—and some very wrong.