text: I can see if you're using OSM's "standard" style or off-the shelf Garmin maps you could easily be lead astray by these "footways" (the web map style that I use doesn't have this problem and highlights the "designation" tag if any, and the Garmin maps I create append "(npe)" to the name so it's obvious that they proably don't exist.  The only way to "fix it properly" is to survey everything, of course - west of Newark that's not complete, but I've done a lot.  East of Newark is more variable - I've done some, but it has also suffered from "armchair" additions from OS OpenData that mostly don't exist and landuse "colouring in".