Hi Joker,
Yes, I like the traffic light analogy I'll go with that.
Hi trevor,
I did originally try "FIFE" but couldn't think of a place in NW England with that ending. Unfortunately the real Fife is just North of Joker in Auld Reekie on the east coast, so that doesn't help either.
Of course all this is assuming that the setter ignored any part of Scotland as being in the NW.