In a groundbreaking effort to enhance road safety, Brazilian researchers are developing an innovative system designed to reduce collisions between vehicles and wildlife. Founded by biologist Fernanda Delborgo Abra, ViaFauna has introduced a cutting-edge animal detection technology called Passa-Bicho, which is strategically placed along roadsides.
Supported by the São Paulo Research Foundation, the system’s prototype features multiple pairs of motion sensors, along with transmitters and receivers. These sensors are specifically positioned in high-risk areas where wildlife encounters with vehicles are most common.
The system works by emitting an invisible infrared beam from the transmitter to the receiver. When an animal crosses the beam, it disrupts the signal, triggering the sensor to send a radio message. This activates an electronic sign or simply lights up a "Wildlife Crossing" warning sign, alerting drivers in real time.
Powered by solar panels, the system is designed to detect large and medium-sized animals weighing around 6.6 pounds (3 kilograms). This focus is driven by both the significant impact these animals have on road safety and the current technological limitations of the system.
ViaFauna plans to conduct field tests at the Luiz de Queiroz College of Agriculture, part of the University of São Paulo, to evaluate how well the device performs under various weather conditions. The goal is to refine the technology and eventually deploy it across high-risk regions to protect both animals and drivers.
This initiative represents a major step forward in using technology to create safer roads and promote coexistence between humans and wildlife.
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