David Zipper July 8, 2025 2025, CityLab Can Americans Just Stop Building New Highways? David Zipper July 8, 2025 2025, CityLab I spoke with Erick Guerra about his book, Overbuilt, and the hidden damage of highway expansions
David Zipper July 8, 2025 2025, Slate Zohran Mamdani has some good ideas for NYC transit. His Biggest Promise Isn't One of Them. David Zipper July 8, 2025 2025, Slate Buses shouldn’t be free.
David Zipper July 2, 2025 2025, CityLab What Gothenburg Got Out of Congestion Pricing David Zipper July 2, 2025 2025, CityLab Congestion pricing can only do so much if a city that doesn’t have much traffic to start with
David Zipper June 17, 2025 2025, CityLab How E-Scooters Conquered (Most of) Europe David Zipper June 17, 2025 2025, CityLab I spoke with Polis’ Karen Vancluysen about how e-scooters are changing European cities — for better and for worse
David Zipper June 3, 2025 2025, CityLab The Global Struggle to Build Safer Cars David Zipper June 3, 2025 2025, CityLab Cars around the world are growing safer — but not in the US.
David Zipper April 28, 2025 2025, CityLab The Last Thing US Transit Agencies Should Do Now David Zipper April 28, 2025 2025, CityLab Cutting transit service leads riders to buy cars — and to abandon transit for good
David Zipper April 26, 2025 2025, Fast Company Virginia will use technology to slow chronic speeders’ cars—and other states are rushing to join in David Zipper April 26, 2025 2025, Fast Company This car safety tech has bipartisan appeal
David Zipper April 23, 2025 2025, CityLab A Car Guy Makes a Left Turn David Zipper April 23, 2025 2025, CityLab Matt Farah is one of the most powerful auto influencers in the world — and also a committed urbanist
David Zipper April 19, 2025 The Verge, 2025 Surge pricing, the scourge of ridehailing, is evolving for the robotaxi era David Zipper April 19, 2025 The Verge, 2025 Robotaxi surge pricing is not like ridehail surge pricing
David Zipper April 16, 2025 2025, CityLab Why the Best Bike Lanes Always Get Blamed David Zipper April 16, 2025 2025, CityLab Cities must build bike networks — not just bike lanes
David Zipper April 3, 2025 2025, CityLab What Would ‘Transportation Abundance’ Look Like? David Zipper April 3, 2025 2025, CityLab To improve transportation, the abundance movement must consider the kind of infrastructure that gets built — not just the quantity.
David Zipper March 25, 2025 2025, CityLab How SUVs Are Making Traffic Worse David Zipper March 25, 2025 2025, CityLab A groundbreaking new study suggests that SUVs are creating more traffic jams
David Zipper March 14, 2025 2025, CityLab The Dark Prophet of Car-Clogged Cities David Zipper March 14, 2025 2025, CityLab 70 years ago, Lewis Mumford warned that urban highways would be a disaster. We should’ve listened.
David Zipper March 13, 2025 2025, Fast Company Detroit killed the sedan. Trump’s trade war will make them wish they hadn’t David Zipper March 13, 2025 2025, Fast Company The Big Three’s commitment to car bloat leaves them vulnerable to Trump’s economic chaos
David Zipper February 25, 2025 2025, CityLab The Trump Administration Takes Aim at Transportation Research David Zipper February 25, 2025 2025, CityLab President Trump is attacking the foundations of transportation research, throwing the field into turmoil.
David Zipper February 20, 2025 2025, CityLab Who Should Fix the Sidewalk? David Zipper February 20, 2025 2025, CityLab Denver recently became the first major US city to “nationalize” its sidewalks in order to build them faster.
David Zipper February 12, 2025 Slate, 2025 Don't buy a Tesla. If you have one, sell it. David Zipper February 12, 2025 Slate, 2025 Musk is an enemy of democracy. Stop buying cars from the company he leads.
David Zipper February 11, 2025 2025, Fast Company This Google Maps ‘safety’ feature could actually make roads more dangerous David Zipper February 11, 2025 2025, Fast Company New features in Google Maps make the navigation app dangerously distracting — and users can’t turn them off
David Zipper January 27, 2025 2025, Fast Company Trump is all-in on cars. It’s up to cities to stop him David Zipper January 27, 2025 2025, Fast Company Even without federal help, local government can encourage people to bike, walk, and ride transit
David Zipper January 23, 2025 2025, CityLab What Happened to Hanging Out on the Street? David Zipper January 23, 2025 2025, CityLab Rather than lingering, Americans are racing through streets quickly — and alone. That’s bad news for cities.
