[Imports] [Talk-us] Importing Virginia road centerlines

Josh Doe josh at joshdoe.com
Mon Feb 21 17:40:57 UTC 2011


I absolutely agree about preserving user contributions. For any given
segment in the Virginia RCL Shapefile, there are any number of ways in
OSM that make up that segment, with varying attributes. The reverse is
possible as well. Merging this won't be easy by any means. However
there's no reason we couldn't start importing (sooner) in areas that
haven't been edited since the TIGER import

As for RoadMatcher, though I haven't played with it yet, I don't see
how OSM attributes are lost, it's just that you have to map from
OSM->Shapefile->OSM.

Remember, I'm just broadcasting my interest, I have a lot of learning to do.

Regards,
-Josh

On Mon, Feb 21, 2011 at 12:01 PM, Mike N <niceman at att.net> wrote:
>> I'm totally new to importing, so I first wanted to see if anyone else
>> is interested in this project, though I am willing to take the time to
>> learn the process myself. Is the process used for importing the
>> Canadian database [1] the best method for doing this?
>
>  The process for the Canadian database is best used only for adding new
> roads that don't exist in the OSM database.  As part of the upload process,
> plan on stitching them into existing roads, perhaps using JOSM.
>
>  It would also be handy to be able to project the improved geometry onto
> existing roads of the same name, while preserving attributes and driveway /
> footpath / bridges that have already been added to the OSM data.    That
> will preserve user's contributions and history.  This would require some
> new, yet-to-be developed tool to work directly with OSM data.  There is much
> interest in this because of the TIGER 2010 data and Arkansas state data
> sets.   It is not certain when there will be developer resources to develop
> such a tool.
>
>  The limitation of Roadmatcher is that it works only with shapefiles, thus
> OSM attributes are lost when exporting to shapefiles.
>
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