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 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 lanes
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 6, 2025 Vox, 2025 Gigantic SUVs are a public health threat. Why don’t we treat them like one? David Zipper January 6, 2025 Vox, 2025 Like smoking a cigarette, driving a giant car endangers innocent bystanders. There is power in that narrative.
David Zipper November 13, 2024 2024, Vox The most dangerous roads in America have one thing in common David Zipper November 13, 2024 2024, Vox In the US, 2/3 of city crash deaths occur on streets control by the state — not local gov. That’s a problem.
David Zipper November 12, 2024 2024, CityLab Under Trump, Prepare for New US Transportation Priorities David Zipper November 12, 2024 2024, CityLab With Trump returning to the White House, US transportation policies will soon change. I spoke with T4A’s Beth Osborne to understand how.
David Zipper October 4, 2024 2024, CityLab What Do US Vehicle Regulators Have Against Tiny Cars? David Zipper October 4, 2024 2024, CityLab American regulators are blocking creative minicars from around the world that are fun, practical, and affordable.
David Zipper October 1, 2024 2024, Fast Company Big Auto helped kill America’s best chance to curtail reckless speeding. But it’s not over yet David Zipper October 1, 2024 2024, Fast Company California almost became the first state in the country to require technology that deters reckless speeding
David Zipper August 28, 2024 2024, Slate, Featured How America Can Break Its Highway Addiction David Zipper August 28, 2024 2024, Slate, Featured Here's how the US can kick its wasteful, destructive habit of building ever-wider highways
David Zipper July 29, 2024 2024, Vox The big lie behind America’s ever-expanding highways David Zipper July 29, 2024 2024, Vox US transportation officials claim that widening highways will help solve climate change. That’s absurd.
David Zipper July 12, 2024 CityLab, 2024 How Subway Riders Will Pay for NYC’s Congestion Pricing Halt David Zipper July 12, 2024 CityLab, 2024 After killing congestion pricing, NY Gov Hochul wants the MTA to focus on system expansion, not maintenance. Bad idea.
David Zipper June 11, 2024 2024, Vox Business owners are buying into a dumb myth about driving David Zipper June 11, 2024 2024, Vox Small business owners regularly overestimate the share of customers who drive
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 May 21, 2024 2024, Fast Company Texas police used a monster truck to promote seat belts. It shows all that’s wrong with U.S. road safety David Zipper May 21, 2024 2024, Fast Company Only in America could a police department use a monster truck to encourage seat belt use
David Zipper March 1, 2024 Vox, 2024 Driving at ridiculous speeds should be physically impossible David Zipper March 1, 2024 Vox, 2024 Tbe movement to adopt Intelligent Speed Assist is growing
David Zipper February 6, 2024 2024, Slate A 7,000-Pound Car Smashed Through a Guardrail. That’s Bad News for All of Us. David Zipper February 6, 2024 2024, Slate Huge cars will destroy guardrails, leaving taxpayers to pay for expensive upgrades.
David Zipper February 5, 2024 2024, CityLab Inside California’s Coming Fight Over Vehicle Speed Limiters David Zipper February 5, 2024 2024, CityLab Could California really be the first US state to require speed governors on new cars? State Sen. Scott Wiener thinks so.
David Zipper October 25, 2023 2023, Slate Cruise Control David Zipper October 25, 2023 2023, Slate California ‘s suspension of Cruise’s robotaxi permit is a disaster for the company — and an existential risk for AVs.
David Zipper August 9, 2023 2023, The Atlantic The Fight Against Robotaxis in San Francisco David Zipper August 9, 2023 2023, The Atlantic Like cars a century ago, robotaxis could transform urban America. We should think long and hard before letting that happen.
David Zipper July 7, 2023 CityLab, 2023 The Untapped Power of E-Bike Rebates David Zipper July 7, 2023 CityLab, 2023 E-bike rebates are fantastic. So why do cities and states make it so hard to get one?
