Here's a No Entry sign, from a charming and peaceful little marina on the Nrofolk Broads in Suffolk. It's just that we're more used to seeing the words "no entry" with a graphical no entry sign - the usual red circle with the white horizontal stripe. And we're used to seeing arrows directing us to go a certain way. So seeing an arrow that's directing us in a way we should not go is what throws us here. The fact it's red, in capitals and in a different font does strengthen the message. But at the same time that does distract a bit much perhaps from what would appear to be the primary information and direction sign.
