Yes, I was confused reading these signals. A long time ago there was a story in an Italian newspaper about a guy of Naples that was tired and sick of the traffic in his street. It was a one way street coming out from a square where another 4 one way streets were ending. So it was the only way to come out from the square. He decided to add a No Entry sign to his street so he could have an easy sleep at least for one night. Worthless to say the confusion in the square the morning after!!