Research Articles

Traffic Calming Saves Lives

How traffic-calming implementations in the US have contributed to pedestrian safety.

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NYC Congestion Pricing: What It Is, Why It Works, and What to Watch

A research-backed guide to NYC congestion pricing: how cordon tolls reduce gridlock, fund transit, affect equity, and what lessons London and Stockholm offer.

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The Right Hook: Why Protected Lanes Still Kill at Intersections

Protected bike lanes save lives mid-block, but many serious crashes still happen at intersections. Here’s why right hooks remain deadly—and how better design plus tools like Loud Bicycle horns can help.

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The Importance of Covering Your Eyes When Biking

Why cyclists should treat eye protection as essential safety gear, from debris and UV to glare, reaction time, and long-term vision health.

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How a Traffic Filter in Oxford Became a Global Conspiracy

How a mundane traffic filter scheme in Oxford morphed into a global ‘15-minute city’ conspiracy, and what it reveals about car-brain politics and urban planning.

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The Reason Our Streets Switched to Cul-De-Sacs

How federal housing policy, neighborhood-unit planning, and engineering manuals pushed North American streets from walkable grids to cul-de-sacs—and what that means for safety, traffic, and active travel.

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Paris After the Car

Paris shows how a car-choked capital can quickly become quieter, cleaner, and more livable, and what other gridlocked cities can copy.

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Super Commuters and the Price of Distance in the American Dream

How housing costs, megaregions, and policy choices turned long commutes and super commuting into a normal part of American life—and what it would take to live closer to everything again.

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Barcelona’s Superblocks: When Traffic Lanes Became Public Squares

How Barcelona’s superblocks reclaim streets from cars, cut pollution and noise, and spark fierce debates about business, gentrification, and the right to the city.

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Berlin’s Bike Budget Cuts: How a Climate Capital Got Cold Feet

Berlin went from climate-mobility poster child to cutting bike and pedestrian budgets in half. What happened, and what can other cities learn before they backslide too?

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