[Talk-GB] Propose automated edit to update NAPTAN data in the west mids

[John Aldridge]

On 03-Feb-17 17:52, Brian Prangle wrote:
> In line with the automated edits policy there's a wikipage
> <https://wiki.openstreetmap.org/wiki/Automated_Edit_West_Midlands_NAPTAN_data>
> with full details

I realise that this proposal is only for West Midlands, but if it were 
extended nationwide, I'd have a concern about globally assuming NAPTAN's 
positional accuracy is better than OSM's existing data. I rather doubt 
that's the case for the ones I've re-surveyed round here, for example.

Even where it is true, there's a follow on task needed which will be to 
make sure nearby non-bus-stop geometry is also improved to match. I know 
there are many places where OSM data has been added from poorly 
georeferenced aerial photography, resulting in a map which, although 
perhaps up to 5 or 10 metres out, is nevertheless useful and usable. 
Simply fixing the bus stop coordinates in isolation will produce some 
very odd results like moving them into the middle of people's houses!

All the stuff about fixing route information sounds excellent, though! 
That's certainly in rather poor repair locally.

-- 
Cheers,
John