Derek, I share your despair! Somewhere on this forum, or maybe another one, somebody went to the trouble of measuring the 320 yards from the sign. As I recall they came to the conclusion that the measurement referred to the distance to the location of the no motor vehicles "flying motorcycle". This is the sign with legal significance - the large yellow and black things on the A316 were I think put there as advisories because people complained about the lack of advance warning of the restriction. There has been much discussion as to what the wording should say, but nothing has changed.
Bruce Hammal ● 1988d