Research Articles
Sex Differences in Driver Risk and Behavior
- Safety
- December 1, 2025
- 9 mins
What the evidence actually shows about male and female drivers: exposure, risk-taking, crash rates, injury vulnerability, and how much of the gap is culture versus biology.
read-more →Why Women in the US Don't Bike as Much as Men
- Infrastructure Policy Safety
- December 1, 2025
- 10 mins
In Utrecht, women ride bikes as much as, or more than men. But in Chicago, men dominate the bike lanes. The difference isn’t culture or biology; it’s how the streets are built.
read-more →Big Cars, Small Freedom
- Safety
- November 30, 2025
- 16 mins
How oversized SUVs and pickup trucks are sabotaging walkable cities, safety, and climate — and why we need to deflate the big-car arms race.
read-more →Cycling for Environmental Health: Air Quality, Noise, and Population-Level Benefits
- Safety
- November 30, 2025
- 12 mins
How shifting everyday trips from cars to bikes cuts air pollution, reduces harmful noise, and delivers outsized population-level health benefits.
read-more →Sleep, Quiet, and Recovery: How Bikes Give Our Nervous Systems a Break
- Health & Environment
- November 30, 2025
- 11 mins
How traffic noise disrupts sleep, circadian rhythms, and stress recovery—and how cycling and quiet transit can help restore nightly recovery.
read-more →Is the Hornit Enough to Keep You Safe?
- Product Reviews
- November 30, 2025
- 3 mins
A short, practical review of the Hornit siren-style bike horn, and why a car-horn-like option such as the Loud Mini can work better in real traffic emergencies.
read-more →Your Lizard Brain on Loud Horns: Why Sound Beats Sight in Traffic Emergencies
- Safety
- November 29, 2025
- 12 mins
How human hearing reacts faster than vision, how loud warning sounds tap into fight-or-flight circuits, and what this means for safe car and bicycle horn design.
read-more →London’s Low-Traffic Revolt: When Quiet Streets Go to Court
- Policy
- November 28, 2025
- 5 mins
London’s low-traffic neighbourhoods have slashed road injuries, ignited a ‘war on motorists’ narrative, and produced court rulings in both directions—making the city a live test of how evidence and politics collide.
read-more →Beyond Home and Work: Bikes, Third Places, and Social Health Across the Lifespan
- Safety
- November 27, 2025
- 12 mins
How walking, cycling, and people-first streets can cut loneliness and rebuild social health from childhood through older age in car-centric societies.
read-more →How Your Ears Pinpoint Danger in Traffic When Hearing a Car Horn
- Safety
- November 27, 2025
- 11 mins
A deep dive into how the brain localizes sound, why broadband and familiar horn timbres work best, and what this means for safer streets.
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