On 11/22/2014 01:34 PM, Tom Taylor wrote:
As much as possible, though, I avoid actually making the boundaries/roads touch each other, because of bad experiences correcting boundaries from imagery -- if the boundaries touch you have to detach them before you can correct the ones in error.
I just wanted to comment on this from my perspective both cleaning up and reviewing tiles. I've seen a lot of instances where landuse and other polys share nodes with roadways, buildings, and other things. I try to separate the nodes whenever possible.
My working theory is that a node should only be shared if there's some fundamental physical relationship between the two objects (landuse boundary vs. building for instance). This is because there are many cases where one entity (the roadway) might be edited where the other associated object (landuse) should not be.
An inverse example would be a roadway crossing a stream. They *should* share the node because the two ways have an inextricable and fundamentally *physical* relationship to each other. Altering the node re: the roadway should absolutely affect the stream's way, and the editor's job is to make sure that both alterations stemming from that node change are valid.
I don't know if there are any formal guidelines on this, but that's my take on it, and maybe this can spark some discussion and formalizing of the topic?
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