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.

U.S. Cities Reexamine the Discriminatory Effects of Bike Helmet Laws
Data from cities across the country show that bike helmet laws are enforced more aggressively in communities of color.

Hong Kong Parking Plan Denounced as 'Wasteful'
Hong Kong's leaders want to build more parking for the growing number of private vehicles, but transportation experts suggest parking management could be a faster and more affordable solution.

Op-Ed: Now is the Time for Congestion Pricing in NYC
The city's plan to charge vehicles entering Manhattan's central business district could reduce traffic and raise $1 billion a year for the city's transportation infrastructure.

Finding New Uses for the 'Vine That Ate the South'
Visually striking and aggressively invasive, kudzu has been choking the Southeast for decades. Now, designers, chefs, and activists want to find ways to make it useful.

Curb Space Management Finally Getting a Good Look
Cities are beginning to recognize that effective curb management is an important part of reducing congestion and ensuring equitable use of public space.