SomeoneElse
Clearly http://www.openstreetmap.org/way/490552527#map=19/53.10689/-1.24637 is a flight of fancy (no-one would build a footpath with no access to the road) but the area needs an on-the-ground survey to see what actually exists and what does not.  Based on similar mapping elsewhere I suspect that may "service roads" will not actually exist and that many "fences" will not actually be fences.