[Talk-transit] NaPTAN import

Thomas Wood grand.edgemaster at gmail.com
Thu Mar 19 17:18:17 GMT 2009


Yes, this is the first message since the confirmation we can use the data.

I did a little more tweaking to the StopArea code at the weekend (not
that it matters for the WestMids data).

I propose we now do the following:
 - Download the whole NaPTAN dataset, so to simplify the update
process in the future (it'll be easier to merge a complete data set
with a single noted timestamp)
 - Run a conversion and filter on the West Midlands data set for just
items in Birmingham.
 - Show the list 5 or so example stops to show how they've been
converted, so we can fix any issues before an import. (And possibly
produce a slimmed down slippymap showing the density of data we're
importing). If a consensus is reached, we'll run an import under the
NaPTAN account. (http://www.openstreetmap.org/user/NaPTAN, which I
currently have control of).
 - Allow Birmingham mappers to trawl the data and work on a set of
guidelines of how to bring the data more in-line with OSM, where
required.
 - Open the import to other talk-gb regions.

I also propose that the official datasets are kept (privately),
converted, and uploaded on/from the OSM dev machine rather than one of
our personal ones.

2009/3/18 Christoph Böhme <christoph at b3e.net>:
> Hi all
>
> has there been any progress with the NaPTAN import yet? The list has
> been very quiet recently.
> I started programming the visual merge tool but I have not yet reached
> a point where there is something to show. I decided not to modify the
> busstop data in the osm database directly but to keep a seperate copy
> of the relevant nodes that can be merged into the database at some
> point when we tidied it up (basically like the dracos tool does it).
>
> Just wanted to let you know that I have not given up on the import ...
>
> Christoph
>
> Brian Prangle <bprangle at googlemail.com> schrieb:
>
>> Hi everyone
>>
>> Summarising where I believe we've got to:
>>
>> 1. Thomas: schedule for completion - we're entirely in your hands -
>> agree it's best to avoid the API update.
>> 2. Birmingham only for test import
>> 3. No highway=bus_stop tags, enabling us to merge/verify existing OSM
>> data ( Christophe's visual tool to eventually solve this manual task)
>> BUT tag taxi ranks as amenity=taxi
>> 4. Import on the basis of the current selection/naming in naptan
>> tagging wiki. Imports to be carried out by new user naptan
>> 5. Plusbus zones and stop areas - import the naptan data only and
>> leave doing anything with it until the debate on stopareas reaches a
>> conclusion
>> 6. Roger/Peter:  is our current method of accessing the data OK? Or
>> do you have to explicitly issue us with a dataset (perhaps the data
>> publicly available for test is not the most current/accurate?)
>> 7. Andy: agree on re-tagging w mids bus stops with route_ref and using
>> semicolons instead of pipes to separate route nos in order to
>> standardise - presume you have an automated routine for this?
>> 8. Update needed on wiki regarding bus_stops (Andy? I'm happy to do a
>> first draft for you to edit before publication - or better still
>> submit it to this discussion list)
>>
>> Parked for later discussion/solution
>>
>> a)Stopareas (see above)
>> b)Big-bang vs regional adoption (probably a talk gb discussion once
>> Birmingham data and process completed)
>> c)handling NaPTAN bus_stop updates
>> d) importing further NaPTAN public transport data
>> e) user feedback - there's a wide range of skill and experience in
>> the OSM community and there are certain to be problems. An explicit
>> route needed? f) how to maintain data integrity once it's imported
>> and inexperienced users potentially delete data that other users have
>> written applications that rely on it being there. I guess this is
>> general problem not specific to this project- but this is a donated
>> dataset and potentially could drive a considerable number of
>> applications
>>
>> Unless there are any strong objections,(or I've ommitted anything
>> from the discussions) I'd like to think we can close the discussion
>> on the import and let Thomas get on with finishing the coding. Thank
>> you everyone for your time and contributions
>>
>> We can continue discussion on the parked items and anything else that
>> doesn't impact the coding for the first live Birmingham import
>>
>> Regards
>>
>> Brian
>>
>
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-- 
Regards,
Thomas Wood
(Edgemaster)




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