[talk-au] LPI Base Map road names

[Andrew Harvey]

On 21 February 2016 at 20:49, Mark Pulley <mrpulley at lizzy.com.au> wrote:

> 2. Sometimes the name of the way on LPI is different to the existing name
> in OSM. Most of the time this simply involves splitting the way where a
> road name changes. I’ve noticed a few times when the road name on OSM is
> very different to the name on LPI. Does anyone have any guidelines on when
> to use the name on LPI and when to use the name in OSM?
>

I think that unless you've surveyed the area or have some other knowledge,
you should assume what's in OSM already is correct and not override it with
LPI Map data unless you have more evidence as to why the name on the LPI
map should be used over what's already in OSM. If they differ, maybe make
an OSM note to double check it via a survey or open a changeset comment
against the original name asking where it came from.

On 21 February 2016 at 22:04, cleary <osm at 97k.com> wrote:

>
> Mark, I have also noticed this. In some cases, the LPI Map has an old
> name that has been changed by the local shire council but it has not
> been updated on the LPI Map. In some cases where there is a seriously
> different name already in OSM, I found that seriously different name was
> usually wrong and, while the contributor had not given a source for the
> name, it is sometimes the same wrong name that appears in a copyrighted
> online source.
>
> In NSW, local government is the final arbiter on road names (they have
> to consult before deciding but council has final say). As far as I can
> ascertain, Council information is supposed to be passed on to LPI but
> this does not always happen so that LPI still has old names in some
> instances.  On a few occasions I have phoned or visited local government
> offices to clarify discrepancies and recorded the info from local
> council as my source (Warren Shire Council, Bourke Shire Council and
> Central Darling Shire Council are instances I can recall immediately).
>
> Also RMS sometimes puts up big signs with non-approved names. This is
> more difficult as the Council name is legally correct but RMS sign is
> what motorists see.  (Example is The Wool Track near Cobar but which RMS
> has incorrectly signposted as Ivanhoe Road).  Similar issue is the main
> road through Ashfield which has Council signs saying Liverpool Road and
> RMS signs saying Hume Highway - but Council is legally the prevailing
> authority except in the Unincorporated Area of far west where there is
> no local council. Usually I would put the Council name as the official
> name and the RMS name as alt_name.
>

As per http://wiki.openstreetmap.org/wiki/Key:name , "For disputed areas,
please use the name as displayed on e.g. street signs for the name tag", so
name should be what the street signs say, other names can go in alt_name or
any of the other name keys.


> If existing name has credible source such as local council or survey, I
> would probably not change it but otherwise I would accept LPI name. In
> the end it's a judgement call. LPI is right most of the time but not all
> the time. Many of the incorrect names do not give a source and, in those
> cases, I think the LPI name would be preferred and include LPI as the
> source.
>

I think if you're not sure where the current name in OSM came from, then
you shouldn't overwrite it with LPI Map data unless you've done the
physical survey on the ground or have other evidence.

Again as per http://wiki.openstreetmap.org/wiki/Key:name if the street sign
says "X" but LPI Map says "Y", then name=X, and possibly if you really want
to add it alt_name=Y.
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