Obviously some heated feelings involved for some regarding their hard work being messed up. This is understandable, and I believe understood by Dave as well. To my knowledge the original tiger, and plans for this import will not delete ANY user created ways. That is why there are 2 ways in some areas as noted. It is up to the people mapping those areas to determine the suitability of the ways and delete/merge the different versions.
In my research to try and do some importing myself I read back to the previous tiger import discussions. As I understand it, the original import skipped entirely counties that had very much previous user content. Others that only had a little he imported the tiger data, but did not do anything to the existing data. Now, your definition of of where to draw that line is obviously objective, but seems like a reasonable compromise. It allows the active mappers to finish counties where they have been active, and just do cleanup/review in the counties that had both user and tiger data. Now were looking at a new tiger update. This gets more complicated, and Dave has stated he has not figured out how he will handle it yet. My feeling is it will involve a lot of node and way comparisons between the existing data, the old tiger data, and the 2007 data. But first he has to extract as much usable data into the OSM format and tags, which is the stage he is on now. I think that if the old tiger data is unchanged, there is no problem deleting it and replacing it with the 2007 data. If possible on a way, or even node by node check rather than a county wide level. Anywhere the tiger data has been modified or deleted, skip those nodes and ways on the new import. We will also need to look for places that user ways overlap with tiger data. If possible decide to import and overlay, or skip those ways. -- Dale Puch
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