I’m currently trying to set up a GH 0.6 database for an OSM dataset which only contains cross-country skiing ways and relations (since some of those ways have no highway tag, I do some preprocessing and add a highwway=unclassified tag if no highway tag is set). This approach worked for Gosmore a long time ago and also works for Routino (i.e. both parsed that OSM file ok and produced proper routing), but it fails with GH.
With prepare.chWeightings=no it says
Too many total edges were removed: 711, all edges:814
on import of a small test file (with 659 ways and 86 relations). That osm file is otherwise “ok”, i.e. I can also load it into JOSM where it displays everything correctly.
Any idea why it removes all those edges?