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Yes.
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<div class="">For info, stations are regarded as “national” and so have their own 910 prefix. So 9100LHONSEA is Leigh-on-sea (OK, it’s not in London but that’s the one I know). The alpha code on the end is a match to the rail industry TIPLOC codes, which throws
 up some oddities (such as London Victoria and London Bridge having two TIPLOCs each, and Clapham Junction having four).</div>
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<div class="">Metro stations are also regarded as national, and so have 940 prefixes. In the cases I mentioned before, 9400ZZLUBNK is Bank, and 9400ZZLUTWH is Tower Hill. In both rail and metro cases, these codes represent the entire station.</div>
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<div class="">Then, each rail station or metro station has one or more entrances. These, for historical reasons, are always defined locally and have local codes. So they have the local prefix (490 for London) instead of the national prefix, but use the same
 identifier for the station. There is then a numbered suffix to distinguish between different entrances, although Bank has so many that it needs alpha as well.</div>
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<div class="">So: </div>
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<ul class="MailOutline">
<li class="">4900ZZLUBNK7 is Bank Station, Entrance 9, on the corner of Threadneedle Street (there isn’t necessarily any direct correlation between the suffix and the entrance number)</li><li class="">4900ZZLUOXC7 is Oxford Circus, Entrance 7, on Argyll Street</li><li class="">etc</li></ul>
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<div class="">The final oddity is that there is a hierarchy. So rail stations can contain metro stations, but not the other way around. But each different entity is expected to have its own entrances. So at Blackfriars, for example, the rail station has two
 entrances, north and south, and the nominal “entrance” to the underground is actually set on the gateline inside the station building.</div>
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<div class="">So there are some things to be aware of, but positionally the entrances are all in the right places (more or less) and you can get a “big bang” from the NaPTAN data even if you later on wish to refine the entrances by survey.</div>
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<div class="">Regards,</div>
<div class="">Stuart Reynolds</div>
<div class="">for traveline south east & anglia</div>
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<div class="">On 9 May 2017, at 07:14, Andrew Hain <<a href="mailto:andrewhainosm@hotmail.co.uk" class="">andrewhainosm@hotmail.co.uk</a>> wrote:</div>
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<div class="">
<div dir="auto" class="">Does it include stations belonging to Network Rail?<br class="">
<br class="">
--<br class="">
Andrew
<hr style="display:inline-block;width:98%" tabindex="-1" class="">
<div id="divRplyFwdMsg" dir="ltr" class=""><font face="Calibri, sans-serif" style="font-size:11pt" class=""><b class="">From:</b> Stuart Reynolds <<a href="mailto:stuart@travelinesoutheast.org.uk" class="">stuart@travelinesoutheast.org.uk</a>><br class="">
<b class="">Sent:</b> 08 May 2017 23:44:56<br class="">
<b class="">To:</b> Derick Rethans<br class="">
<b class="">Cc:</b> Bjoern Hassler; <a href="mailto:talk-gb-london@openstreetmap.org" class="">
talk-gb-london@openstreetmap.org</a>; osm-gb<br class="">
<b class="">Subject:</b> Re: [Talk-GB] [Talk-gb-london] New OSM London Meetup - Invite</font>
<div class=""> </div>
</div>
<div class="">
<div class="">Hi All,</div>
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</div>
<div class="">For reference, virtually all of the entrances are contained within the London NaPTAN data (<a href="https://data.gov.uk/dataset/naptan" class="">https://data.gov.uk/dataset/naptan</a>) which is the data that begins with the prefix 4900. The tube
 entrances all begin 4909ZZLU followed by a three letter code for the station plus a digit to distinguish between different entrances. For example, 4909ZZLUBNK0 would be an entrance to Bank, while 4900ZZLUTWH0 would be Tower Hill.</div>
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</div>
<div class="">While these do not give you accessibility information, they are all maintained by TfL and should give you accurate positional information.</div>
<div class=""><br class="">
</div>
<div class="">Regards </div>
<div class="">Stuart<br class="">
<br class="">
<div class="">Sent from my iPad</div>
</div>
<div class=""><br class="">
On 8 May 2017, at 21:02, Derick Rethans <<a href="mailto:osm@derickrethans.nl" class="">osm@derickrethans.nl</a>> wrote:<br class="">
<br class="">
</div>
<blockquote type="cite" class="">
<div class=""><span class="">Hi,</span><br class="">
<span class=""></span><br class="">
<span class="">I think this is a good idea. We have something UK wide, but doing it a
</span><br class="">
<span class="">local way makes a lot of sense (and easier to complete). Happy to do
</span><br class="">
<span class="">this "fix the tube network" thing over a few weekends (After the General
</span><br class="">
<span class="">Election that is).</span><br class="">
<span class=""></span><br class="">
<span class="">cheers,</span><br class="">
<span class="">Derick</span><br class="">
<span class=""></span><br class="">
<span class="">On Thu, 4 May 2017, Bjoern Hassler wrote:</span><br class="">
<span class=""></span><br class="">
<blockquote type="cite" class=""><span class="">Dear Grant, dear all,</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">thanks for putting on the meeting, and thanks for the sponsored pizza! Good</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">meeting last night, and god to have met you all.</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">Following up on the "Missing Maps London" idea, I thought we could may do</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">some "map challenges" that look at specific things that need work. It might</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">be a nice community building activity, and provide some continuity between</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">meetings?</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">As an experiment, I've formulated one such challenges here</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""><a href="https://wiki.openstreetmap.org/wiki/London_public_transport_tagging_scheme/Map_Challenges" class="">https://wiki.openstreetmap.org/wiki/London_public_transport_tagging_scheme/Map_Challenges</a></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">and added images / interactive maps / help for new mappers.</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">See what you think and let me know whether there's interest. Results could</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">be announced at the next meeting?</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">All the best,</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">Bjoern</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class="">On 30 April 2017 at 17:30, Grant Slater <<a href="mailto:openstreetmap@firefishy.com" class="">openstreetmap@firefishy.com</a>> wrote:</span><br class="">
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Hi All,</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">We trying a new format OpenStreetMap evening meetup in London this</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Wednesday 3rd May 2017... We'd love for you to come along:</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""><a href="https://www.meetup.com/OpenStreetMap-Q-A-Meetup/events/239366249/" class="">https://www.meetup.com/OpenStreetMap-Q-A-Meetup/events/239366249/</a></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">New to OpenStreetMap and want to learn more or need some help getting</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">started? Already mapping or using OSM and have any Questions or</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Challenges or want to see what others are up to? This is the event for</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">you.</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">We already have 3 great speakers lined up for the evening:</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">* Andy Allan - OpenCycleMap / Thunderforest</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">* Astrid Thorseth - Missing Maps</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">* Derick Rethans - London Mapper</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">We have a great venue (bias, I work there), there will be pizza and</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">soft drinks provided.</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">I'd love to hear any suggestions on how we could improve the event or</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">what works elsewhere.</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Kind regards,</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Grant</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">_______________________________________________</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class="">Talk-gb-london mailing list</span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""><a href="mailto:Talk-gb-london@openstreetmap.org" class="">Talk-gb-london@openstreetmap.org</a></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""><a href="https://lists.openstreetmap.org/listinfo/talk-gb-london" class="">https://lists.openstreetmap.org/listinfo/talk-gb-london</a></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class="">
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
</blockquote>
<blockquote type="cite" class=""><span class=""></span><br class="">
</blockquote>
<span class=""></span><br class="">
<span class="">-- </span><br class="">
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<span class=""></span><br class="">
<span class="">_______________________________________________</span><br class="">
<span class="">Talk-GB mailing list</span><br class="">
<span class=""><a href="mailto:Talk-GB@openstreetmap.org" class="">Talk-GB@openstreetmap.org</a></span><br class="">
<span class=""><a href="https://lists.openstreetmap.org/listinfo/talk-gb" class="">https://lists.openstreetmap.org/listinfo/talk-gb</a></span><br class="">
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