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

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6, 2026 - Grist

A rendering of a mall turned living space. People walk around a green space surrounded by apartments.

Malls are becoming the midtowns of the future

Mall and office park redevelopments are a generational opportunity to create new nodes of urbanity.

October 29, 2026 - Ben Schneider

A car drives through a puddle in NYC

NYC breaks ground on anti-flooding infrastructure project

New York City's new system will reduce stormwater flows to local sewers by 90%.

November 9 - Smart Cities Dive

Members of the Smoketown CLT gather for a photo

One Kentucky town’s secret to affordable housing

The Smoketown Community Land Trust has already built seven affordable homes for community members.

November 9 - Reasons to Be Cheerful

Two people stand under mesh coverings shaped like petals

Houston gains petal-shaped cooling infrastructure to make streets more ‘delightful’

The city has installed the pavilions along 15 blocks in Houston.

November 9 - De Zeen

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.