On Fri, May 11, 2018 at 10:56 AM, Martijn van Exel <[email protected]> wrote:

>  As long as there is at least one tag left that would indicate TIGER as
> the original source, so we can continue to detect 'unmodified TIGER' roads.
> -
>
Just because a TIGER road has been modified doesn't mean it has been
verified, for example if you add a side street you will probably have to
add a shared node at its intersection with the road in question, and that
would bump the version - meaning it is now "modified" even though the
mapper may not have reviewed the entire length of the TIGER road.
Conversely, just because a TIGER road is still at version 0, doesn't mean
it hasn't been verified as existing nodes that make up the way can be moved
without bumping the version on the way.
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