Risk

Can a Car Horn Make Cyclists More Courteous?

Can a car-horn-loud bike horn make cyclists more courteous? Research on risk compensation plus real Loud Bicycle rider stories.

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When Fire Trucks Block Safer Streets

How oversized fire trucks and outdated rules quietly block safer street design—and what it would take for firefighters to become Vision Zero allies.

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Sex Differences in Driver Risk and Behavior

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.

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