Given a PostGIS database populated from OSM data by osm2pgsql, and 2
sets of lines (such as the selection of all footways and the selection
of all roads) what function or series of functions will result in a
list of locations where footways cross roads without any OSM connecting
node? (the equivalent of JOSM's "Crossing Ways" warning)
According to the PostGIS documentation, ST_Intersect() includes
"Touches", which I assume would be sharing an OSM node.
ST_Crosses() might be what I want, but does it exclude the crossings
that share a node? If not, do I just remove all the ST_Intersect()
results that are spatially close to ST_Crosses()?
Thanks,
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