I've read the English version of the book. I think I didn't meet this sign in the book. What's the meaning of it?

Thanks!

Thanks! One more question, If it's between 16th and 31st of a month, then I should park on the side even house number?GRO schreef: 26 mar 2023, 18:41 If you answer the question correctly you have the meaning of the sign.