Bike-Mounted Sensor Could Improve Safety for Cyclists

A new camera technology can detect when vehicles pass too close to people on bikes.

1 minute read

December 12, 2024, 9:26 AM PST

By Diana Ionescu @aworkoffiction


Cyclist on folding bike riding next to silver car on city street.

vitaliy_melnik / Adobe Stock

A handlebar-mounted camera technology developed at the University of Arizona and Arizona State University could help keep cyclists safer on the road by collecting data about close-passing drivers, reports Kea Wilson for Streetsblog USA.

The camera is paired with a sensor that detects when a vehicle passes dangerously close to a cyclist and collects information that can be used for legal evidence and, collectively, inform planners and policymakers about close-passing “hot spots” and where safe bike infrastructure is lacking.

According to Wilson, “One Australian study estimates that up to 38 percent of motor vehicle drivers who hit cyclists were either overtaking or close-passing the vulnerable road user. But similar stats are hard to come by in most U.S. jurisdictions.” Now, advocates hope that technology like CycleSafe, as the sensor is dubbed, will help change that. 

Robert Heinrichs, associate professor at Arizona State's School of Computing and Augmented Intelligence, says “it's not impossible that the CycleSafe software could someday be programmed to automatically notify EMS when a serious crash is detected, potentially saving lives in hit-and-runs; it could also generate video footage for educational campaigns aimed at showing drivers just how terrifying a close pass really is for a person in the saddle.”

Wednesday, December 11, 2024 in Streetsblog USA

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Silhouette of man holding on to back of bicycle ridden by woman with Eiffel Tower in background.

Paris Bike Boom Leads to Steep Drop in Air Pollution

The French city’s air quality has improved dramatically in the past 20 years, coinciding with a growth in cycling.

April 14 - Momentum Magazine

Multifamily housing under construction.

Why Housing Costs More to Build in California Than in Texas

Hard costs like labor and materials combined with ‘soft’ costs such as permitting make building in the San Francisco Bay Area almost three times as costly as in Texas cities.

April 14 - San Francisco Chronicle

Western coyote looking at camera in grassy field.

San Diego County Sees a Rise in Urban Coyotes

San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.

April 14 - Fox 5