"Charles Ellson" wrote

Is it actually a right of way? I wouldn't be so sure that it is.

If it isn't then an appropriate sign ought to be in position.

There are other ways of ensuring that a way does not become a public right
of way by presumed dedication. One is to close it for one day a year, and
retain evidence of having done so. It is also possible to deposit a map and
statutory declarations with the highway authority. But I agree that the
normal way is to post a sign.

Peter