Research Articles

Bike Radar Lights: How Rear Sensors Became the New Safety Upgrade

Rear-view radar lights started as niche Garmin gadgets and are now a whole ecosystem: Garmin Varia, Wahoo Trackr, Trek CarBack, budget radars from Magene and Magicshine, plus experimental projects like Loud Bicycle’s Commute Guardian.

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San Francisco’s Bike Lane Battles: Valencia, JFK, and the Great Highway

How San Francisco’s battles over Valencia Street, JFK Promenade, and the Great Highway reveal the politics and data behind reallocating space from cars.

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Age-Related Changes in Driver Attention

As populations age, understanding how attention, vision, and hearing change behind the wheel can help design safer roads, vehicles, and alerts for drivers of all ages.

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AirZound Bike Horn Review: Loud Air, Mixed Results in the Cold

A deep dive into the AirZound pump-up bike horn: how it works, how it behaves in real traffic and cold weather.

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Bike Horn User Interfaces: Taps, Presses, and Toggles

How modern bike horns use taps, presses, and directional gestures to give riders both polite bells and emergency car-level warnings.

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Laser Bike Lights: From Virtual Lanes to Projected Bike Symbols

A deep dive into the history of bicycle laser lights, from early ‘virtual lane’ concepts to today’s projection lights, with a look at which products are still on the market and which have disappeared.

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How Car-Dependent Grocery Trips Turn Into Food Waste

How car-based supermarket runs encourage overbuying and food waste in the U.S—and how bikeable, dense neighborhoods flip the script.

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Cycling and Mental Health: How Two Wheels Protect Your Mind

How everyday cycling reduces depression, anxiety, and stress—and how small safety upgrades like lights and loud horns help more people ride.

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Cycling for Physical Health: Turning Everyday Trips into Exercise

How everyday cycling improves heart, metabolic, and musculoskeletal health—and how simple safety upgrades like lights and car-horn-loud bicycle horns make it easier to ride consistently.

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Hövding Airbag Bike Helmets: Rise, Fall, and What Comes Next

A deep dive into Hövding’s airbag ‘invisible helmet’ for cyclists: how it works, what safety testing found, why it was pulled from the market, and how the brand is being revived.

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