[Talk-gb-westmidlands] Map fiddling

[Andy Robinson (blackadder)]

Tom Hughes has just added the ITO World Locator tiles overlay to his map
browser, which makes it a lot easier to browse around the region and find
the difference between OSM and the OS OpenData StreetView.

http://maps.compton.nu

Just click the overlay at the bottom of the layers panel.

Be warned though, not all difference are down to errors in OSM, but just
difference in the way labels are done in the OS dataset. For instance,
Birmingham and other LA's don't generally nowadays put apostrophes in street
signs, but the OS data set often will have them for the same street. As
always with OSM, stick to what's on the ground. If we record discrepancies
on the Mappa-Mercia page on the wiki we can keep an eye out for differences
that we know of and what a resurvey on the ground tells us. It also means we
can revert easily if someone blindly uses the OS mapping as "fact".

You will find that the number of discrepancies in Birmingham isn't so great,
they are infrequent and spaced about with just the odd one here and there in
each locality. However slide yourself across the Black Country and it's a
different story. Because a lot of mapping in the Black Country has been hit
and miss to date there are lots of locations needing attention.

Happy mapping

Cheers

Andy