David Zipper December 5, 2025 2025, CityLab A Bright Idea for Road Safety: Traffic Light Timing David Zipper December 5, 2025 2025, CityLab The humble traffic light is a potent safety solution that’s hiding in plain sight
David Zipper November 25, 2025 2025, CityLab Bikeshare Shouldn’t Kick Tourists to the Curb David Zipper November 25, 2025 2025, CityLab Why do so many bikeshare systems seem to be fleecing visitors?
David Zipper November 19, 2025 2025, CityLab On the French Riviera, Street Reforms Come From the Right David Zipper November 19, 2025 2025, CityLab Can conservatives support restricting cars and boosting transit, walking, and, biking? The French Riviera offers lessons.
David Zipper October 23, 2025 2025, CityLab American Roads Are Paved With Inefficiency David Zipper October 23, 2025 2025, CityLab My conversation with Yale prof Zach Liscow about the wild inefficiencies of state DOTs
David Zipper October 17, 2025 2025, CityLab What Comes After the ‘War on Cars’? David Zipper October 17, 2025 2025, CityLab I spoke with the War on Cars podcasters about the past, present, and future of anti-car activism
David Zipper October 10, 2025 2025, CityLab ‘Car Brain’ Is Making the US Unhealthy and Dangerous. EVs Won’t Fix It. David Zipper October 10, 2025 2025, CityLab I review a trio of new books claiming that cars damage society as well as the planet
David Zipper October 9, 2025 2025, CityLab The Secret to Vancouver’s Public Transit Ridership Recovery David Zipper October 9, 2025 2025, CityLab Vancouver’s regional transit system is thriving. Here’s why.
David Zipper September 26, 2025 2025, CityLab Why US Cities Pay Too Much for Transit Buses David Zipper September 26, 2025 2025, CityLab Can Abundance-coded reforms reduce the cost of US transit buses?
David Zipper September 25, 2025 2025, CityLab A Showdown Over Speed and Safety, Italian-Style David Zipper September 25, 2025 2025, CityLab Bologna adopted a blanket 30 km/h speed limit. Italy’s right-wing government declared war.
David Zipper September 15, 2025 2025, Vox A self-driving car traffic jam is coming for US cities David Zipper September 15, 2025 2025, Vox A few ways cities can future-proof themselves for the self-driving era.
David Zipper September 4, 2025 2025, CityLab One-Way Streets Are the Wrong Way to Tame Downtown Traffic David Zipper September 4, 2025 2025, CityLab A simple way to improve American downtowns: Make one-way arterials bidirectional.
David Zipper August 28, 2025 2025, CityLab Automated Traffic Enforcement Is More Popular Than You Think David Zipper August 28, 2025 2025, CityLab Despite their controversial reputation, traffic cameras are both effective and popular.
David Zipper August 13, 2025 2025, CityLab The US-Canadian Road Safety Gap Is Getting Wider David Zipper August 13, 2025 2025, CityLab An American is 2.5x more likely to die in a crash than a Canadian, and the trendlines are diverging
David Zipper August 5, 2025 CityLab, 2025 All Hail the Humble Speed Hump David Zipper August 5, 2025 CityLab, 2025 Let us play homage to the speed hump, humble warrior in the battle against traffic chaos
David Zipper July 30, 2025 2025, CityLab We Should All Be Biking Along the Beach David Zipper July 30, 2025 2025, CityLab Biking along the beach is sublime. It’s a shame there are so few places to do it.
David Zipper July 23, 2025 2025, CityLab The High Costs of Trump’s ‘Big Beautiful’ New Car Loan Deduction David Zipper July 23, 2025 2025, CityLab The GOP will let Americans deduct auto loan interest from their taxes. It’s a terrible idea.
David Zipper July 10, 2025 2025, CityLab Why Did Cars Get So Hard to See Out Of? David Zipper July 10, 2025 2025, CityLab Posts known as A-pillars are creating dangerous blind spots
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 2024, 2025, Slate Zohran Mamdani has some good ideas for NYC transit. His Biggest Promise Isn't One of Them. David Zipper July 8, 2025 2024, 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
