Signs, markings, lights & authority

On the N50 you see a round sign identical to the maximum-speed sign, but with a grey diagonal stripe across the number. What does this sign mean?

A2, end of maximum speed
A5, end of advisory speed

Explanation

False — trap: end-sign family confused. **A5 (end of advisory) belongs with the blue A4 sign, not the round A1 sign.** A crossed-out ROUND sign is A2. Book p.238.

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