1. No. Only instruction signs refer to the giving of right-of-way.
  2. No. The sign belongs to the instruction signs group and is not, as far as right-of-way rules are concerned, obligatory.
  3. Yes. You should give right-of-way to vehicle traffic on the road ahead.
  4. No. This is a warning sign which doesn’t come to replace any right-of-way sign.
Picture for question 438