> Can someone who actually works with commercial navigation data say if > "via ways" have an equivalent in their systems?
TomTom and HERE data both have restrictions that are comprised of multiple via edges (ways). At MapQuest, my team and I integrated these restrictions into the routing engine and when we imported OSM data the logic to handle these complex restrictions was already in place - that is why MapQuest supports them. Now at Mapzen, we are developing an open source routing engine (Valhalla: https://github.com/valhalla). We have not yet implemented these complex restrictions but plan to in the coming months. The logic is not simple and can complicate what might otherwise be a clean design. I think the number of these complex restrictions is low in OSM, but often they represent important cases. -- David Nesbitt d...@mapzen.com 443-206-1819
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