David Zipper August 4, 2026 2026, CityLab What Happens When Speed Cameras Get Shut Off David Zipper August 4, 2026 2026, CityLab Predictably, reckless speeding has surged since Ontario banned automatic enforcement
David Zipper July 15, 2026 Other, 2026 Why Are Waymos Still Blocking Bike Lanes? David Zipper July 15, 2026 Other, 2026 Robotaxi companies keep blocking bike lanes. They’re unlikely to stop unless forced to.
David Zipper July 10, 2026 2026, CityLab The City That Conquered Traffic Has a New Weapon David Zipper July 10, 2026 2026, CityLab Singapore is about to become the first place in the world to manage congestion pricing through satellites — without the need for cameras, gantries, or tollbooths
David Zipper June 25, 2026 2026, CityLab America’s Road Safety Blind Spot David Zipper June 25, 2026 2026, CityLab In the US, crashes in parking lots and driveways get ignored
David Zipper June 1, 2026 2026, CityLab The AV Future Might Not Be Shared David Zipper June 1, 2026 2026, CityLab Autonomous vehicles that are owned — not shared — would be a disaster for cities, the environment, and anyone in a human-driven car.
David Zipper May 7, 2026 2026, CityLab Why DC’s Metro Wants to Automate its Trains David Zipper May 7, 2026 2026, CityLab For the first time, an American transit system plans to automate its trains. That’s exciting!
David Zipper April 22, 2026 2026, CityLab Why Cities Shouldn’t Fall For the Robotaxi Hype David Zipper April 22, 2026 2026, CityLab Transportation historian Peter Norton believes the hype around self-driving cars is overblown and dangerous
David Zipper April 14, 2026 2026, CityLab Searching for the ‘Smoking Gun’ in US Pedestrian Deaths David Zipper April 14, 2026 2026, CityLab Why do so many Americans die while walking?
David Zipper April 1, 2026 2026, CityLab Why Trump’s War on DC’s Streets Matters David Zipper April 1, 2026 2026, CityLab Trump and MAGA are undoing years of work to make DC’s streets safer and more enjoyable
David Zipper March 26, 2026 2026, CityLab Could Congestion Pricing Pay Off for Chicago? David Zipper March 26, 2026 2026, CityLab Congestion pricing in New York City has been a smashing success. Could Chicago go next?
David Zipper March 18, 2026 2026, CityLab Here Comes the Self-Driving Traffic Surge David Zipper March 18, 2026 2026, CityLab As AVs scale, they’ll increase car use -— and thicken congestion
David Zipper March 17, 2026 2026, Fast Company Google Maps and Apple Maps are making parking harder than it has to be David Zipper March 17, 2026 2026, Fast Company Navigation apps largely ignore the hassle of finding a place to park. The result: More driving stress — and more cars on the street.
David Zipper March 10, 2026 2026, CityLab The US Is Counting Traffic Deaths Wrong David Zipper March 10, 2026 2026, CityLab Deaths per capita offers a complete picture of crash risk. Deaths per mile does not.
David Zipper February 23, 2026 2026, CityLab An Insurance Expert Appraises the Safety Record of Self-Driving Cars David Zipper February 23, 2026 2026, CityLab How safe are robotaxis, really? To find out, I spoke with a data guru at the Insurance Institute of Highway Safety.
David Zipper February 10, 2026 2026, CityLab The Best Tactics for Tackling Speeders David Zipper February 10, 2026 2026, CityLab The research is clear: Cities have plenty of ways to reliably curtail speeding. But implementation often feels like pulling teeth.
David Zipper February 2, 2026 2026, Other, The Driverless Digest AV companies are ignoring rural America. That's a shame. David Zipper February 2, 2026 2026, Other, The Driverless Digest AV companies are passing up an opportunity to transform rural lives
David Zipper January 30, 2026 2026, CityLab Congestion Pricing’s Unexpected Winners: Suburban Drivers David Zipper January 30, 2026 2026, CityLab Surprisingly, drivers’ time savings from NYC congestion pricing have overwhelmingly gone to those traveling outside Manhattan entirely.
David Zipper January 22, 2026 2026, CityLab Achieving ‘Transportation Abundance’ Is All About Density David Zipper January 22, 2026 2026, CityLab A surefire way to make transportation more affordable and abundant? Increase density.
David Zipper January 14, 2026 2026, CityLab E-Bike Boosters Ask: Is It All Downhill From Here? David Zipper January 14, 2026 2026, CityLab The e-bike industry is down, but it’s far from out.
David Zipper January 6, 2026 2026, Financial Times Europe doesn't need driverless cars David Zipper January 6, 2026 2026, Financial Times What, exactly, do robotaxis offer European cities?
