Oh wow. That seems like a horrible state of affairs. I've worked in bicycle routing before (Germany) and we had a very good, curated mesh of bicycle paths, tagg

Oh wow. That seems like a horrible state of affairs. I've worked in bicycle routing before (Germany) and we had a very good, curated mesh of bicycle paths, tagged for suitability for certain bike types. We also used OSM and previously Navteq for roads to also use for routing and at least in Europe the tagging seems to be mostly useful. But I can see now why navigation breaks so horribly when all you have is an essentially uncategorised road network.