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<div class="moz-cite-prefix">Hi,<br>
<br>
I would not wish to see a mass import in my area, but I could see
some merit in comparing data 'line by line'. I can remember that
in the early days (2009?) there were bus stops on the data at the
time that NaPTAN was imported. Some were sensibly merged, but some
were deleted before the value of merging was realised (I was
probably as ignorant of how to sort it out properly in those days,
as anyone else, so I don't think a witch hunt will help).<br>
<br>
Since then, I've made many cycle surveys in my area, and have
updated NaPTAN stops to the extent that anything I have edited in
the past is now in the right place & the tags will be correct.
However, some of the imported data was so inaccurate, that it was
difficult to tell whether it should be moved North, South East or
West, to where the nearest actual stop was. As a result of this,
it is quite possible that there are stops shown in the right place
with the correct tags concerning shelters, benches, tactile
paving, name of stop, timetables or bus route references
displayed, etc, but added to a NaPTAN reference which new data
would show to actually be elsewhere.<br>
<br>
The only way of improving this would be a line by line comparison,
with perhaps the transfer of a reference from new NaPTAN data, to
the existing OSM data. If I appear in the history of the bus stop
(Ctrl+h using JOSM), then there is a bus stop in that exact
location. I suspect that this is true of many stops elsewhere, so
some cautionary line by line merging is going to be needed.<br>
<br>
I use the NOVAM - viewer from <a href="http://b3e.net/novam/">http://b3e.net/novam/</a>
to check what needs doing, (Birmingham colour scheme suits my
purpose). If you use this & zoom into Swanley, Kent (just off
J3 of M25), you will find there are several stops which I have
created, for which there is no NaPTAN data in the current
database. It would obviously be sensible to add that data if you
have it - just don't move the stop or change the other tags I've
added please. You'll also see that I have marked some bus stops as
'not physically present'......<br>
<br>
I think most mappers have worked from <a
href="http://wiki.openstreetmap.org/wiki/NaPTAN/Surveying_and_Merging_NaPTAN_and_OSM_data">http://wiki.openstreetmap.org/wiki/NaPTAN/Surveying_and_Merging_NaPTAN_and_OSM_data</a>
(history shows this was last updated in 2011 with most of the
updates from 2009), but there are more recent articles at <a
href="http://wiki.openstreetmap.org/wiki/Public_Transport">http://wiki.openstreetmap.org/wiki/Public_Transport</a>,
and I'm not sure of what the current position is as the 'goal
posts kept moving!'<br>
<br>
Some sensible consultation aiming towards a goal we can understand
and achieve would be good, because I personally just reached the
stage where I made sure the bus stops were in the correct place
with the right tags, and left the routes part completed.<br>
<br>
I can't offer to spend time importing on a line by line basis -
I'm currently trying to get Ebola areas mapped in Africa! If I can
help in other ways, let me know - it makes sense to me to present
the data in a way it can actually be used by someone!<br>
<br>
Regards<br>
<br>
Nick (Tallguy)<br>
<br>
On 31/07/14 15:47, Chris Hill wrote:<br>
</div>
<blockquote
cite="mid:b5cd8f01-d897-4085-8efb-13850370ea6d@email.android.com"
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--></style>The NaPTAN data was imported for Hull and East Yorkshire at
my request. I quickly realised that the data was of variable
quality and resurveyed the ~1300 bus stops in Hull. Having
corrected a large percentage of the stops, I informed the Hull
council team, at their request, who then ignored me. I would not
want any NaPTAN data re-imported in this area unless I was sure
the quality has very substantially improved. Some working
relationship with the council team who maintain the data would
help too.<br>
<br>
Cheers, Chris,<br>
osm user: chillly<br>
<br>
<div class="gmail_quote">On 31 July 2014 15:15:18 GMT+01:00,
Stuart Reynolds <a class="moz-txt-link-rfc2396E" href="mailto:stuart@travelinesoutheast.org.uk"><stuart@travelinesoutheast.org.uk></a> wrote:
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<div class="WordSection1">
<p class="MsoNormal">Hi,</p>
<p> </p>
<p class="MsoNormal">This is a spin off from the recent
thread about imports, because I wanted to specifically
talk about NaPTAN imports.</p>
<p> </p>
<p class="MsoNormal">Having briefly scanned the various wiki
pages, I get the impression that the NaPTAN data was
imported, once, in 2009. What I can’t see, or haven’t
found, is any discussion about how & how often this
data is updated. NaPTAN (and associated NPTG) is a live
data set, and is changing continually as bus stops are
brought into use (e.g. new developments) and taken out of
service.</p>
<p> </p>
<p class="MsoNormal">As I think I have mentioned, one of the
reasons that I am now on this group is because of the
adoption of OSM by a number of traveline regions, whose
members are the very local authorities that create and
maintain the NaPTAN data (including
Nottingham/Nottinghamshire, since that was mentioned in
the earlier thread). We therefore have an interest in
making sure that the stop data on OSM is as up to date as
the mapping.</p>
<p> </p>
<p class="MsoNormal">Is there an appetite within the
community to maintain and update this data? And if so, how
would we go about it, and how often might it be updated?
For the record, the data set is change dated, and deleted
records are retained in the data for reference until
(eventually) being archived (although even then the stops
are still contained in a separate archive file). So I
think that the process of updating can be made a) robust,
and b) reversible.
</p>
<p> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal">Stuart</p>
<p> </p>
</div>
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