Mt.Fuji Toll Road Has A Unique Function To Play Music

As I introduced yesterday, there is a big toll road to go up to Mt.Fuji 5th Station for climbing. The road is called "Fuji Subaru Line" and even after the climbing season ends people can still go through the road by cars or buses as long as snow doesn't block the road. 

Interestingly, the road has a section with a special road surface that can make a musical sound. The unevenness on the surface of the road together with frictions generated by moving car tires makes music. 

There is an information board on the road and it says when cars run at a speed limit of 50km/h (30 MPH), tires will make musical sound and people can enjoy it. The music is a part of a Japanese children's song about Mt.Fuji. I recorded it and posted here, so please click the Youtube link above to listen.

Actually, I found out the music is not so clear when I drove there at exact 50km/h (30 MPH ), but at a little bit faster speed, the sound became clearer. However if people want to listen to the music, they can't go over the speed limit too much. Therefore it is a nice and interesting way to prevent speeding.