[talk-au] Potlatch and unconnected roads

[Nick Hocking]

Most of Canberra has been mapped with potlatch and using imagery. I believe
that this is going to cause quite a few problems, but one of the bigger
problems is that of unconnected roads. It seems that it is very easy to
leave roads unconnected when using potlatch and I think that there are
hundreds, possibly thousands of them in Canberra alone.

Moving roads with JOSM and noticing intersecting ones that stay still, shows
the errors but this is a time consuming task given the scale of the problem.

Is there a program that will analyse the OSM data and highlight those
highways (on the same layer) that cross but do no have a common node at that
location.  This, as a side benifit, would also pick up those overpasses that
have not been given a layer tag.
WE'd also need to indenify those roads (on OSM) that get VERY close but do
not actually meet, since these may also be in error.
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