Simon Ward <si...@...> writes: >Having looked at some of the StreetView data aroud my area, it is not >very accurate at all (probably out of date). > >This isn’t something we can just blindly import, trace, or otherwise use >and assume it’s of better quality.
In areas where we already have some mapping coverage we clearly need to check that the OS map is consistent with what we have. However, there are still large parts of the country with little or no coverage in OSM, and in those cases we certainly can assume that the OS data is better. It's worth noting that the Yahoo aerial photography is also out of date; in some cases [1] people have traced streets from the photo which bear no relation to what's on the ground. Yet nobody suggests we should stop tracing from it. The places where OSM is weakest tend to be villages and rural towns; these are also those that change slowly, so the OS map is likely to be reasonably current. [1] http://www.openstreetmap.org/?lat=51.56496&lon=-0.04983&zoom=17&layers=B000FTF I recently fixed this by a GPS survey; the warehouses and service roads have been replaced by housing. The OS Street View map is up-to-date in this area. -- Ed Avis <e...@waniasset.com> _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb