Apart from C, D, U etc roads, there are also many A and B roads which officially have a number but that number isn't signposted anywhere. For example in Derby, there is the A601 (Inner Ring Road), A5194 (London Rd) and B6000 (road to railway station). I'm fairly certain there isn't a single signpost which refers to these numbers but someone has added the ref into OSM. In London also there seem to be a lot of B roads which aren't signed, yet a ref tag has been added, such as Brick Lane (which isn't even really suitable as a through route to vehicles).
I think as has been argued for the tertiary/unclassified roads, that it would be sensible to retag the refs on those roads to official:ref, admin_ref or something similar. Cheers, Paul Williams (Paul The Archivist) _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
