Yes, bloody Pat "5MPH"!!
I saw this in Skinburness, near to Silloth (north Cumbria) the other day there:
I get up to Silloth at least four times a year for work but I've never been to Skinburness, I'll have to make a detour next time.
I assume that's some sort of warning?
Only if you are a minor.
A minor road?
To be fair, I don't think you are really missing much.
A minor road? Wouldn't that be a path or a track or something?