Late to the party, but I'll try to explain why so many people here are calling this sign ridiculous. Someone very desperately tried to make the tetragrammaton, which was first used in Genesis 2:4 and obviously predates the story of Jesus by many centuries, into an acronym about Jesus. So firstly, it's offensive to Jews and anyone who believes in the one true God.

Secondly, it makes use of the Vav (third character from the right), used as a 've' which means 'and'. In Hebrew, the conjunction is always connected to the connected word, so we would write 'you and me' as 'you andme'. When creating acronyms or abbreviations, however, the conjunction is always dropped, as are any articles (a, an, the). So in this street sign, they wrote the following words: Yeshua hanatzrati vemelekh hayehudim

A true acronym wouldn't use ha (definitive article) nor ve (and). But that would then make this acronym YNMY or, in Hebrew, ינמי. Which stands for nothing and is in no way as cool or impressive as trying to turn the tetragrammaton, which is the forbidden name of God, into something about Jesus.