[Talk-us] Arm chair mapping challenges

Mike N niceman at att.net
Tue Aug 18 15:48:26 UTC 2015


On 8/18/2015 10:27 AM, Tod Fitch wrote:
> Some other mapper has updated the area to remove the old buildings and streets and marked the area as under construction. All of that seems correct from what I’ve read in the paper and what little I can see on the ground.
>
> But it means the area differs from the Tiger data for the area.
>
> And now I am seeing multiple change sets from mappers I don’t recognize as local re-instating the now missing features. For example:https://www.openstreetmap.org/way/366208964#map=15/37.3338/-122.0097
>

To borrow from the "Stop deleting abandoned railroads" thread, nothing 
should be deleted.  <g>   But seriously, I now leave an empty way with a 
note saying that Bing YYYY is out of date.   That will head off some 
problems.  Of course, this leaves lots of empty cruft floating around, 
and discourages new editors who are confused by all the jumble.

 > A number of the “fixes” have a mention 
ofhttp://osmlab.github.io/to-fix/?error=tigerdelta-named#/task/tigerdelta in 
their change set comments.

A partial technical improvement is that the challenge on 
osmlab.github.io should only flag missing TIGER data that was added to 
TIGER since the original 2007 import.   But that misses the very real 
problem when someone accidentally deletes an existing street.


   But definitely comment politely on the changeset.   I'm a firm 
believer in the value of armchair mappers and what they're doing.   A 
bit of feedback helps them learn and improve, since I'm sure they mean 
to do well.

  [ PS - 3 out of 5 of the "Bing is right" edits have come from local 
mappers ]




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