text: Just noticing it’s pretty well visible on Mapillary: https://www.mapillary.com/app/?lat=52.587979228156485&lng=-0.415485315035653&z=18.98548705107168&pKey=1VyEy6QYcEJbljCI6zJiQw&focus=photo 
  So the track does join the A1 southbound carriageway but, of course, does not cross it. I think we may safely remove its western part from OSM. Thanks for you assistance! 