text: Sorry for the belated response; I have just been doing some tidying up in the High Wycombe area and was reviewing other notes. I have altered the underlying OSM data in accordance with your very clear note. The road should now show with a subtle pattern behind it (showing access is destination only, which allows visitors, deliveries etc to be routed here), and changed the W end to a pure bridleway.
  
  Unfortunately we dont seem to have many active contributors in the area otherwise this would have been resolved earlier.