Australia Built an AI Sign That Spots Koalas on the Road Before Drivers Can

For a koala crossing a road at night, the odds are not good. The animals move slowly. They're hard to spot in headlights. And Australia's road network cuts directly through some of the most important koala habitat on the continent. Vehicle strikes are one of the leading causes of koala deaths — and with the species listed as endangered in Queensland, New South Wales, and the ACT, every death matters. Now, for the first time ever, a solution has been proven to work in the real world. Researchers at Griffith University's School of Information and Communication Technology have successfully tested an AI-powered camera built into an intelligent road sign that detects koalas crossing roads in real time. The prototype trial, conducted on Queensland's Redlands Coast in partnership with Telstra, the NSW Department of Climate Change, and Redland City Council, captured a koala crossing — and the sign knew it. This is a world first in field deployment of this technology. 'Traditional static road signage failed to address the unpredictable timing and location of koala movements,' said Professor Jun Zhou, Deputy Head of the School of ICT at Griffith. The AI system uses edge computing — processing data locally, near the source, rather than sending it to a distant server — combined with real-time video analysis to identify koalas as they approach or cross a road. The detection laid the groundwork for future smart sign systems that could trigger flashing warnings precisely when a koala is present, improving driver responsiveness in a way that permanent signs simply cannot. The project is part of a broader initiative funded under the New South Wales Koala Strategy, a government commitment to reduce koala road fatalities and support population recovery. Griffith's team had been trialling the system since March 2025, building an AI training database using footage from earlier camera deployments across high-use koala transport crossings. The significance of this real-world validation cannot be overstated. Lab results are one thing. Detecting an actual koala, crossing an actual road, in real time — that's the breakthrough. Koalas sleep up to 22 hours a day, but when they move, they really move — crossing roads to find mates or new habitat. Those moments of movement are precisely when they're most vulnerable. With AI now watching those roads, the crossings just got a little safer. 🐨