Trains with animal noises will be added to new trains to help avoid animal collisions.
The Railway Technical Research Institute in Japan has found that making trains emit the sound of dogs barking can scare deer off the tracks, reducing the chances of hazardous and costly collisions.
New trains in Japan will be equipped with large speakers and as well as using dog sounds they will also include the cry of other deer.
According to the Ashai Shimbum, the system tested a three-second recording of a deer and 20 seconds of a barking dog from a running train car during its evening run, when deer are typically seen on the tracks.
Deer were sighted about 45 percent less than normal.
There were 613 cases across Japan of train services suspended or delayed due to collisions with deer and other wild animals.
The system is planned to be in place on main train lines in March.