[Talk-us] Admin borders in the US: CDPs

[Richard Welty]

On 11/6/13 4:52 PM, Greg Troxel wrote:
>
>
> Are you aware of any regulatory impact of crossing a CDP boundary
> (ignoring impacts of crossing other boundaries that coincide)?  I am
> not, and I have no idea where the CDP boundaries are around me.
CDP boundaries are worse, really, than that. i discovered in working
through boundaries downstate (Rockland and Westchester Counties)
that the Census Bureau had substantially changed a bunch of CDP
boundaries between 2008 and 2013, downsizing a bunch of them
quite a lot.

i thought they were for comparing counts census to census, but now
i really don't know what they're for if the boundaries can change
that much.
>
> All in all, I think CDP boundaries should be either
>
>   removed from OSM, or
>
>   changed to have some boundary=census tag, if they are useful
>
the latter, i think. there are parts of the US where the CDP
boundaries do contribute to the map.

richard


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