Horn usage

Do not use warning devices (horn, etc.) unnecessarily except in unavoidable danger situations or when there are signs indicating you must honk.

“Honk” sign

Honk sign

This sign requires you to honk.

You must honk when you see this sign.

Horn-required area

Horn area sign

This sign indicates a 'horn-required area'.

In this area, you must honk when passing the following points:

  • An intersection where you cannot see to the left or right.
  • A curve where you cannot see ahead.
  • A hilltop where you cannot see the other side.