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.

Cities Must Act to Curb Delivery Van Congestion
With more and more products available for doorstep delivery, Janette Sadik-Khan argues that policymakers have to proactively face the imminent "delivery deadlock" and take control of curb management.

Lawsuit by Malibu Wineries Challenges Ban on New Vineyards
A coalition of winemakers claims that the county ignored CEQA requirements in instituting a blanket ban on new vineyards in the Santa Monica Mountains.

How the Built Environment Impacts Public Health
New research sheds light on how the brain responds to urban environments and architecture.

Miami Funds Protected Bike Lanes With E-Scooter Fees
The city, which has some of the nation's most dangerous streets for pedestrians and cyclists, is installing 3 miles of new bike lanes and pedestrian ramps on some of its busiest downtown corridors.

Reducing Car Trips in L.A.: Transportation Demand Management Ordinance Could Be Expanded
The proposed expansion would affect smaller multi-family developments and include incentives for reducing travel during peak hours and encouraging transit, walking, and biking.