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.

Blinded by the Light: When Brighter Headlights Decrease Safety
Bright LED headlights can create glare and reduce visibility for other drivers and pedestrians.

Study Links Covid and Poor Driving
The effects of the virus, including ‘brain fog,’ can make driving more difficult and dangerous.

Waymo Gets Permission to Map SF’s Market Street
If allowed to operate on the traffic-restricted street, Waymo’s autonomous taxis would have a leg up over ride-hailing competitors — and counter the city’s efforts to grow bike and pedestrian on the thoroughfare.

Parklet Symposium Highlights the Success of Shared Spaces
Parklets got a boost during the Covid-19 pandemic, when the concept was translated to outdoor dining programs that offered restaurants a lifeline during the shutdown.

Federal Homelessness Agency Places Entire Staff on Leave
The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.