Infrastructure sensors and AI are finally tackling the motorcycle safety problem nobody wanted to solve
Two new papers show real progress on protecting vulnerable road users, and it's about time someone did the work.
Crédit photo: Lottie animation by Centre Robotics (LottieFiles Free, used with credit). · source
Why has it taken this long for the industry to get serious about motorcyclists and pedestrians?
I've been asking myself that question for years. When I was at Kuka, we'd occasionally get inquiries about sensor systems for traffic applications, but the money was always in logistics and manufacturing. The automotive guys were focused on cars protecting car occupants. Motorcyclists, cyclists, pedestrians? They were someone else's problem.
Well, two research papers crossed my desk this week that suggest someone's finally doing the work. And the results are genuinely encouraging, even if we're still years away from seeing this stuff deployed at scale.
The infrastructure approach
The first paper comes from researchers at the University of Tübingen, and it tackles a problem anyone who's driven in a city knows well: you can't see what's behind parked cars. Neither can your fancy ADAS system.
Their solution is what they call "infrastructure-assisted collective perception." Basically, you mount sensor units on traffic lights and lamp posts, and they share what they see with approaching vehicles. The idea isn't new (I remember seeing early concepts at trade shows back in 2015 or so), but the arXiv paper actually quantifies the safety improvement using EuroNCAP test scenarios.
The numbers are striking. In their simulation, a vehicle relying only on its own sensors achieved about 33% accident avoidance in safety-critical scenarios involving vulnerable road users. Add the infrastructure sensors sharing their perspective, and that jumps to 100% in some scenarios.
Now look, I'll be honest: simulation results aren't the same as real-world deployment. The researchers built their dataset in CARLA (a popular driving simulator) with 11,000 frames of safety-critical scenarios. That's useful for benchmarking, but cities are messier than simulations. Weather degrades sensors. Infrastructure needs maintenance. Communication links fail.
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