[Talk-us] Systematic errors in the Maui, Hawaii Data

[Scott Atwood]

On Wed, Sep 30, 2009 at 7:17 AM, Chris Lawrence <lordsutch at gmail.com> wrote:

> My strong suspicion is that this widespread displacement has to do
> with the pre-2008 TIGER data for Hawaii being in a different datum
> than NAD83, which is what was used for CONUS.  I'm not sure there's
> much that can be done except a reimport (preferably from 2008 TIGER,
> which is NAD83) to ensure better positional accuracy...
>
> The same issue may also affect the Northern Mariana Islands, Guam, and
> American Samoa which were also non-NAD83 before 2008.
>
>
I spot-checked Oahu, and it looks like it may have already been corrected,
manually or otherwise.  That isn't too surprising, given the much larger
population of this island.

I'm still relatively new to the OSM project.  What is the best way to
proceed to correct the datum errors for these islands?  Do we need to
achieve some sort of consensus on the best technical solution first?  (e.g.
manually moving ways in JOSM vs. reimporting)

-Scott

-- 
Scott Atwood

Cycle tracks will abound in Utopia.  ~H.G. Wells
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