[Talk-ca] Correcting Geobase_import_2009

john whelan jwhelan0112 at gmail.com
Sun Oct 25 16:43:51 GMT 2009


Yes I'm new and my background is red tape.  I understand there is a
lot going on and I appreciate the work that has been done.

My background is in databases etc. If you ask clients what they want
they always rate reliability above anything else.  To me the data from
geobase is good high quality data with input from multiple sources
including municipal governments.  Talk to them nicely and we can get
all sorts of high quality things like bus stops, speed limits etc
direct from the municipalities.

What appears to have happened is where the data has been merged roads
that are in the geobase database no longer connect to roads that have
been put in via potlatch.  I think the end point is dropped.  The
older potlatch roads do not have the same depth of tags as the geobase
data.  Not only that but roads that run close to the old roads appear
to be deleted for the section close to the potlatch inputted roads.
Oh and my WAAS enabled GPS thinks at least one Potlatch inputted road
is in the wrong place.

My personal view is that we should go with the geobase database and
see if we can layer on tags etc.  That way we can update the database
from time to time by replacing the entire geobase data layer.

I think OSM can add value in Canada basically by tagging and enhancing
data already there, if a client can get geobase data elsewhere that
actually has connecting roads and complete roads they may prefer that
to OSM where the data quality isn't so consistent.

Oh and I prefer JOSM to potlatch for some reason.

Thoughts?

Cheerio John

2009/10/25 Sam Vekemans <acrosscanadatrails at gmail.com>:
> Hi,
> just use potlatch & connect the roads. No harm done :-)
>
> The OSM changeset history keeps track of attribution and such.
>
> If you want a copy of where the geobase version of that road is, i can
> provide that.
>
> The system that imported the roads didnt want to interfeer with what
> work previous people did.
>
> Cheers,
> Sam
>
>
> On 10/25/09, john whelan <jwhelan0112 at gmail.com> wrote:
>> Looking at my local map in Orleans Ontario noticed that Merkley Drive
>> does not connect up to Charlemagne.  Merkley Drive is tagged
>> Geobase_import_2009 and all sorts of interesting things.  Charlemagne
>> is just tagged potlach and residential road.
>>
>> Is there an easy way to extend Merkley Drive so it does connect?  ie
>> add another node but copy the attributes of the existing road?
>>
>> Should I simply hold off until I know that the Geobase_import_2009 has
>> been completed?
>>
>> Is there a way to submit a GPS trace into Geobase to get their base
>> map corrected?
>>
>> Thanks John
>>
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>
>
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