[Talk-GB] NaPTAN updating for new bus stops

[Chris Hill]

It's was not just location that was flawed, the direction, road names, 
NaPTAN ref number and other details were often wrong. There was a scheme 
set up to verify and correct the imported data. Hopefully things are 
better today, but don't forget all that 'official' data was created by 
someone who might have been having on off day or just made a mistake, so 
don't be afraid to correct it in OSM with what is actually on the 
ground. Imports are rarely perfect.

Chris Hill (chillly)

On 15/12/2021 13:22, SK53 wrote:
> Further to what Chris says:
>
> I believe that the locational accuracy of Naptan data is way better 
> than what it was, but care still needs to be exercised.
>
> There is currently a stop described as Cosmeston Country Park located 
> in the sea W of the Isles of Scilly, and 364 located at OSGB Null 
> Island (-7.55 W, 49.76 N).
>
> Jerry
>
> On Wed, 15 Dec 2021 at 13:06, Chris Hill <osm at raggedred.net> wrote:
>
>     I did a lot of work with NaPTAN data in Hull and the East Riding or
>     Yorkshire. My experience would lead me to say that a ground survey
>     always overrules any such import. Do not be afraid to update the map
>     data with what you actually find on the ground. There is no
>     NaPTAN-sourced data structure that can be broken, it was imported and
>     has been widely altered, added to and adjusted since. If a further
>     NaPTAN import is made in an area it will have to be done in a way
>     that
>     respects surveyed data, which was much less of a problem in 2008.
>
>     Chris Hill (chillly)
>
>     On 15/12/2021 12:43, Chris Hodges wrote:
>     > Bristol Parkway Station (located in South Glos) now has 4 bus stops
>     > A-D. OSM  Shows the old B (where the new C is) and C (where
>     there's no
>     > longer a stop).  I had some time to kill there yesterday and did a
>     > quick survey so have enough information to update the map.
>     >
>     > But:
>     >
>     > If I go in and start editing, I'm likely to break the existing
>     > NaPTAN-sourced data, and I don't see an easy route to query
>     NaPTAN in
>     > a human-readable way to compare it or add the new stops. For
>     someone
>     > who's not going to get into mass edits or data imports, what's the
>     > best way to proceed?  Should this be re-imported, or is there a
>     > datasource I'm missing?
>     >
>     >
>
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