[talk-ph] City Database

[Jing Iya]

Hi All,

I read this last night - http://wiki.openstreetmap.org/wiki/OSM_tags_for_routing#City

Looks like the quickest solution is to use the GADM country database, however we are constrained to do so because:

"This dataset is freely available for academic and other non-commercial
use. Redistribution, or commercial use, is not allowed without prior
permission."

I do not know what is their interpretation of the OSM effort, but I am sure OSM is non-commercial, however, once we load the GADM database into OSM, we are technically redistributing it. But then it says "without prior permission".

I think Maning can ask permission from GADM?

Have anyone heard of any information if another country is using the GADM database on OSM?

Have a nice day guys!

Jing







________________________________
From: Jing Iya <jing_iya at yahoo.com>
To: talk-ph at openstreetmap.org
Sent: Wednesday, January 27, 2010 14:20:05
Subject: Re: [talk-ph] City Database


Thanks Maning,

Yes, the lot address is something we cannot do unfortunately. I will start studying the city database, hope I can do something about it.

For the time being, I will concentrate on the City/Municipality since it is more important than the Barangay.

Jing





________________________________
From: maning sambale <emmanuel.sambale at gmail.com>
To: osm-ph <talk-ph at openstreetmap.org>
Sent: Wednesday, January 27, 2010 11:59:58
Subject: Re: [talk-ph] City Database

Glad someone will take on the challenge!

For a brief history, all cities/towns were initially imported from the
GNS data 2 years ago.
http://wiki.openstreetmap.org/wiki/WikiProject_Philippines/Data_import

The location is not very accurate.  What is needed is to locate the
node ideally on the municipal hall or within the city center or
poblacion.  You can easily do this even with landsat overlay.  I
believe user:axk did this for some islands in Visayas.

We use the place tag to denote location:

http://wiki.openstreetmap.org/wiki/Key:place

We adopted the following practice for PH:
place=city "for cities"     
place=town     "for towns/municipalities"
place=village ANDplace:ph=barangay    "for barangay"    
place=hamlet "for villages and subdivisions"

Please search the talk-ph list archives for similar discussions as well.

There's also a rule for mapping admin boundaries:
http://wiki.openstreetmap.org/wiki/WikiProject_Philippines/Mapping_conventions#Administrative_boundaries

This will hopefully improve location search, however, the current
admin boundaries are incomplete even at the city/municipality level.

As for adding city/municipality for each POI we use the Karlsruhe Schema:
http://wiki.openstreetmap.org/wiki/Address

Please also note that we have a lot address problems in the country.
See this address variations:
http://wiki.openstreetmap.org/wiki/WikiProject_Philippines/Philippine_addressing#Addressing_variations

Hope that helps.  Good luck!
Good luck!



On Wed, Jan 27, 2010 at 11:14 AM, Jing Iya <jing_iya at yahoo.com> wrote:
> Hello All,
>
> Since you are discussing how to improve the road tagging in OSM Phil., Id
> like to ask too, how can we improve the City/Municipality database specially
> the one we are using in Garmin GPS. If you will notice, the city or
> municipality database is quite confusing and should I say "dirty".
>
> I am willing to give my time and help clean this up if I would be given the
> chance to learn how to group the roads and POIs into the correct City or
> Municipality.
>
> Regards,
>
> Jing
>
>
>
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-- 
cheers,
maning
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wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
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