Researchers will test sensors that warn cars directly, as well as the use of human voices and dog barking to scare animals away. However, officials note that animals may gradually become accustomed to both light and sound from traffic, reducing the effectiveness of deterrents over time. Moose react differently to deterrents; some may be scared by a drone or a honking sound, while others do not care.
It remains unclear how effective the new methods will be and whether animals will habituate to them.