kreuzschnabel
What about http://maps.northyorks.gov.uk/connect/analyst/?mapcfg=roads_footpaths ? There’s a "crown copyright" note on it but I think this refers to the background OS map in the first place. Since the PROW are not a matter of OS at all but of civil councils, shouldn’t they be in the public domain? Interesting question.  I think the Definitive Maps ought to be issued as GPXes so they may be freely used on any routing software :-)