What does this sign mean?

- A Slippery road ahead.
- B Road liable to flooding.
- C Steep descent ahead.
- D Unprotected quay; canal or river ahead.
Show answer & explanation
Correct answer: Unprotected quay; canal or river ahead..
This sign gives advance warning of an unprotected area of water ahead. You should be cautious due to the extreme danger.
This sign gives advance warning of an unprotected area of water ahead. You should be cautious due to the extreme danger.