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.

Court Bars EPA Probes in Louisiana’s ‘Cancer Alley’
A federal court ruling effectively prevents the Environmental Protection Agency from pursuing civil rights claims in one of the nation’s most polluted regions.

Denver E-Bike Rebates: Gone in 60 Seconds
The popularity of e-bike rebate vouchers continues unabated in Denver.

Austin Completes First Round of Vision Zero Projects
Small, localized interventions such as changes to signal timing and crosswalk improvements are saving lives and improving traffic safety.

Biking Outpaces Transit Use in DC
D.C. residents and visitors take as many as 30 million trips on bikes or shared mobility, yet bike lanes cover just one quarter of one percent of the District’s streets.

Philly Speed Camera Program Cuts Fatalities in Half
Excessive speeding along dangerous segments of Roosevelt Boulevard dropped by 90 percent after the city installed automated enforcement cameras.