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.
David Zipper September 23, 2024 2024, CityLab Unlocking the Hidden Power of Zoning, for Good or Ill David Zipper September 23, 2024 2024, CityLab I spoke with Sara Bronin about her new book, Key to the City, and whether zoning can be a force for urban progress
David Zipper June 3, 2024 2024, CityLab A Traffic Engineer Hits Back at His Profession David Zipper June 3, 2024 2024, CityLab I spoke with Wes Marshall, an urban planner and engineering professor, about the reasons US traffic engineers prioritize car speed over road safety.
David Zipper January 24, 2024 CityLab, 2024 The Town That Took Downtown Renewal to the Next Level David Zipper January 24, 2024 CityLab, 2024 Morristown, TN built elevated sidewalks through its downtown — but lifting pedestrians above traffic has been a mixed blessing.
David Zipper July 12, 2023 2023, CityLab Repairing the Roads That Were Built to Divide David Zipper July 12, 2023 2023, CityLab I spoke with Veronica Davis about her new book, Inclusive Transportation
David Zipper May 16, 2023 2023, CityLab A Belgian Lesson in Taming the Automobile David Zipper May 16, 2023 2023, CityLab Brussels shows how a car-clogged city can reinvent itself — quickly
David Zipper February 9, 2023 CityLab, 2023 How E-Bike Rebates Will Make Cycling Safer David Zipper February 9, 2023 CityLab, 2023 Want safer streets? Convince your city to offer e-bike rebates.
David Zipper January 12, 2023 2023, CityLab Indianapolis Gets Serious About Car Crash Investigations David Zipper January 12, 2023 2023, CityLab Indianapolis seeks to address the root causes of fatal crashes — and not just find someone to blame
David Zipper December 1, 2022 2022, CityLab The Case for Guerrilla Crosswalks David Zipper December 1, 2022 2022, CityLab Frustrated citizen activists are painting their own crosswalks. Good for them.
David Zipper November 3, 2022 2022, CityLab US Traffic Safety Is Getting Worse, While Other Countries Improve David Zipper November 3, 2022 2022, CityLab Why are Americans 2.5x to 4x more likely to die in a crash than those in other rich countries?
David Zipper October 7, 2022 CityLab, 2022 How Finland Put Traffic Crashes on Ice David Zipper October 7, 2022 CityLab, 2022 Why is traveling in Finland — a country of dark, snowy winters — 3x safer than in the USA?
David Zipper September 7, 2022 2022, CityLab How Japan Won its ‘Traffic War’ David Zipper September 7, 2022 2022, CityLab In Japan, the risk of dying in a crash is 1/6 the US rate. What makes traveling in Japan so safe?
David Zipper August 15, 2022 2022, Slate Green Technology David Zipper August 15, 2022 2022, Slate What if the future of transportation involves fewer self-driving cars, and more golf carts?
David Zipper June 16, 2022 2022, CityLab As US Road Deaths Rise, France Is Safer Than Ever. Why? David Zipper June 16, 2022 2022, CityLab An exploration into reasons why US road death rates 3x higher than in France
David Zipper April 11, 2022 2022, CityLab Why ‘Vision Zero’ Hit a Wall David Zipper April 11, 2022 2022, CityLab Despite the fanfare, Vision Zero isn’t saving lives in the USA. Can it be saved?
David Zipper January 27, 2022 2022, Slate Traffic Deaths Are Way Up. What’s Pete Buttigieg Going to Do About It? David Zipper January 27, 2022 2022, Slate I interview DOT Secretary Pete Buttigieg about his plan to halt the surge in traffic deaths
David Zipper December 8, 2021 2021, CityLab Note to Store Owners: Not All Holiday Shoppers Drive David Zipper December 8, 2021 2021, CityLab Many retailers underestimate the share of customers who walk, bike, or ride transit
David Zipper December 6, 2021 2021, The Atlantic The Deadly Myth That Human Error Causes Most Car Crashes David Zipper December 6, 2021 2021, The Atlantic Every year thousands of Americans die on the roads. Individuals take the blame for systemic problems.
David Zipper September 28, 2021 CityLab, 2021 The Unstoppable Appeal of Highway Expansion David Zipper September 28, 2021 CityLab, 2021 Widening highways always fails to reduce congestion. Why do states keep doing it?