[Openstreetmap] UK railways

[Simon Hewison]

Andy Robinson wrote:
> http://www.geoskating.com/gmap/osm-gmap.html
> 
> ...and you will see that accuracy of final data is unlikely ever to be an
> issue. It will just take time to get to that level of confidence in some
> areas where gps tracking by contributors is less effective.

I've found several cases where the map data used by Google Maps (which
in the UK is mostly supplied from Tele Atlas) is itself suspect, with
streets running at incorrect angles, copyright easter eggs, and the like.

It's relatively easy to pick this up, as Google Earth uses the same
street data as Google Maps, and in some areas, Google Earth has
excellent imagery (better than Google Maps in most cases), and good (or
getting better) rectification.

-- 
Simon Hewison