[Imports-us] A proposal for handling the tiger realignment

Eric Fischer enf at pobox.com
Wed Aug 14 15:44:07 UTC 2013


The aggressive version would move most of those but wouldn't know what
to do with South Spartan Avenue, so it would be left where it was,
awkwardly connected to the rest, and someone would have to fix it
manually. That's probably the right thing to do in any county where
someone will promise that they will fix all the problems, though.

Probably really the right thing to do with renumbered TLIDs is to
delete the old version from OSM and add the new version back in, but
the additions would lose any road reclassifications, one-way
annotations, and relations that might have been added on the OSM side,
and would have to be carefully checked to make sure they didn't
duplicate roads that had been independently added in OSM.

Eric

On Wed, Aug 14, 2013 at 7:24 AM, Brian May <bmay at mapwise.com> wrote:
> OK, thanks for looking into it. That's a bummer. Is it possible "more
> aggressive" techniques would pick these up?
>
> Brian
>
>
> On 8/13/2013 8:30 PM, Eric Fischer wrote:
>>
>> The chain of causality is that, in county 121017,
>> node 96238986 (28.763443,-82.534412) can't be moved because it is
>> connected to
>> node 96242483 (28.763425,-82.53623) which can't be moved because it is
>> connected to
>> node 96232423 (28.763424,-82.536941) which can't be moved because it
>> is connected to
>> node 96223319 (28.763426,-82.537816) which can't be moved because it
>> is connected to
>> node 96227957 (28.763426,-82.539013) which can't be moved because it
>> is connected to
>> node 96257290 (28.7604,-82.539025) which is from
>> TLID 86219342 (South Spartan Avenue) which no longer appears in TIGER
>> apparently because it was renumbered for a route split so that the
>> driveway a little bit to the north could be mapped.
>>
>> I need to add some more debug output so that it's easier to trace why
>> something is not moved, but I don't know how to fix the root cause.
>>
>> Eric
>>
>>> Eric,
>>>
>>> I checked some areas in Citrus County FL which still has a lot of bad
>>> tiger
>>> and noticed many areas where the code did not provide updated nodes and
>>> ways, but had major tiger 2010 improvements and no one touching the
>>> original
>>> OSM ways/nodes, except for a bot. Example location: 28.76355, -82.5346.
>>>
>>> Your thoughts?
>>>
>>> Brian
>>>
>
>



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